FreeWave IOE-4404 User Manual And Reference Manual

Revision: A Last Updated: 03/21/2012 I/O Expansion Serial Bases: IOE-4404 IOE-4422 IOE-4440 Expansion Modules: IOEX-4404 IOEX-4422 IOEX-4440 Covering Firmware 2.2.0 User Manual and Reference Guide

Warranty FreeWave Technologies, Inc. warrants your FreeWave® Wireless Data Transceiver against defects in materials and manufacturing for a period of three years from the date of shipment, depending on model number. In the event of a Product failure due to materials or workmanship, FreeWave will, at its discretion, repair or replace the Product. For evaultation of Warranty coverage, return the Product to FreeWave upon receiving a Return Material Authorization (RMA). In no event will FreeWave Technologies, Inc., its suppliers, or its licensors be liable for any damages arising from the use of or inability to use this Product. This includes business interruption, loss of business information, or other loss which may arise from the use of this Product. OEM customer’s warranty periods can vary. Warranty Policy will not apply in the following circumstances: 1. If Product repair, adjustments, or parts replacements are required due to accident, neglect, or undue physical, electrical, or electromagnetic stress. 2. If Product is used outside of FreeWave specifications as stated in the Product's data sheet. 3. If Product has been modified, repaired, or altered by Customer unless FreeWave specifically authorized such alterations in each instance in writing. This includes the addition of conformal coating. Special Rate Replacement Option A special rate replacement option is offered to non-warranty returns or upgrades. The option to purchase the replacement unit at this special rate is only valid for that RMA. The special replacement rate option expires if not exercised within 30 days of final disposition of RMA. Restricted Rights Any product names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged. This manual is for use by purchasers and other authorized users of FreeWave products. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, or for any purpose without the express written permission of FreeWave Technologies, Inc. FreeWave reserves the right to make changes to this manual without notice. FreeWave assumes no responsibility or liability for the use of this manual or the infringement of any copyright or other proprietary right. FreeWave products are designed and manufactured in the United States of America. FreeWave Technologies, Inc. Boulder, CO 303.381.9200 Toll Free: 1.866.923.6168 Printed in the United States of America. Fax: 303.786.9948 Copyright © 2012 by FreeWave Technologies, Inc. All rights reserved. www.freewave.com LUM0017AB Rev A ii

(EAR) and/or the International Traffic in Arms Regulations (ITAR). Export, re-export, or transfer of these products without required authorization from the U.S. Department of Commerce, Bureau of Industry and Security, or the U.S. Department of State, Directorate of Defense Trade Controls, as applicable, is prohibited. Any party exporting, re-exporting, or transferring FreeWave products is responsible for obtaining all necessary U.S. government authorizations required to ensure compliance with these and other applicable U.S. laws. Consult with your legal counsel for further guidance. UL Notifications Models IOE-4404, IOE-4422, IOE-4440, IOEX-4404, IOEX-4422, and IOEX-4440 are suitable for use in Class1, Division 2, Groups A, B, C, and D or non-hazardous locations only. The connectors shall not be connected or disconnected while circuit is live unless area is known to be non- hazardous. Warning! Explosion Hazard - Substitution of any component may impair suitability for Class 1, Division 2. Warning! Do not remove or insert the diagnostics cable while the circuit is live unless the area is known to be free of ignition concentrations or flammable gases and vaports. Input voltage for the IOE and IOEX models is +7.5 to +30 VDC. Subject Devices are to be installed in the vertical orientation only. Devices were tested for vertical orientation only and not the horizontal orientation. Important: Input power and all I/O power, except relay output contacts, shall be derived from a single Class 2 power source, or equivalent. LUM0017AB Rev A iii

device may not cause harmful interference and 2) this device must accept any interference received, including interference that may cause undesired operation. This device must be operated as supplied by FreeWave Technologies, Inc. Changes or modifications should not be made to the device without the express written approval of FreeWave Technologies, Inc.. Whenever any FreeWave Technologies, Inc. module is placed inside an enclosure, a label must be placed on the outside of the enclosure. The label must include the text "Contains: FCC ID" (with the module's FCC ID number). IC Notifications This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Ce dispositif est conforme aux normes permis-exemptes du Canada RSS d'industrie. L'opération est sujette aux deux conditions suivantes : (1) ce dispositif peut ne pas causer l'interférence, et (2) ce dispositif doit accepter n'importe quelle interférence, y compris l'interférence qui peut causer le fonctionnement peu désiré du dispositif. LUM0017AB Rev A iv

Preface ix Chapter 1: Introduction 1 About Base Modules and Expansion Modules 1 Serial Base Connectors 2 Serial Base Data Connector 3 Serial Base 485/Power Connector 3 Serial Base Diagnostics Connector 4 Expansion Module Connectors 4 Expansion Module Data Connector 5 Expansion Module Diagnostics Connector 5 I/O Device LEDs 5 Serial Base LEDs 6 Expansion Module LEDs 6 Powering Serial Bases and Expansion Modules 7 Chapter 2: Setting Up and Programming Serial Bases and Expansion Modules 9 Reading Serial Bases and Expansion Modules in Tool Suite 9 Defining Channel Settings in Tool Suite 10 Upgrading Serial Bases and Expansion Modules to the Latest Firmware 12 Programming Stack Settings in Tool Suite 12 Settings That Apply to the Entire Stack 13 Chapter 3: Channel Functions and Specifications 15 IOE-4440 and IOEX-4440 Channels 15 IOE-4422 and IOEX-4422 Channels 16 IOE-4404 and IOEX-4404 Channels 16 Universal Channels 17 Universal Channel as Digital Input 17 Universal Channel as Digital Output 19 Universal Channel as Analog Input 21 Universal Channel as Analog Output 24 Universal Channel as Sensor Power 26 Input-Only Channels 27 Input-Only Channel as Digital Input 27 Input-Only Channel as Analog Input 29 Isolated Channels 33 LUM0017AB Rev A v

33 Isolated Channel as Digital Input 35 Chapter 4: Modbus Register Map 39 Quick Reference 40 Holding Coils (Read/Write) 41 Discrete Inputs (Read-Only) 44 Input Registers (Read-Only) 45 Holding Registers (Read/Write) 47 Modbus Register Descriptions 50 Holding Coils (Read/Write) 50 0 to 11: DO, Sensor Power ON 50 24 to 35: Apply Default DO, AO, Sensor Power 50 48 to 59: Default DO, Sensor Power State 51 72 to 83: DI Counter Clear 51 92 to 95: High–Speed DI Counter on Isolated 51 96 to 106: DI Counter Falling Edge Increment 51 112 to 119: AI Signed Integer Result 51 120 to 127: AI, AO Current, Voltage Mode 52 136 to 147: DI Counter Latch 52 152 to 163: Pulse Counter De-Bounce 52 Discrete Inputs (Read-Only) 52 10000 to 10011: DI State 52 10024 to 10035: Circuitry Protection Active 52 Input Registers (Read-Only) 52 30000 to 30016: AI Integer Result 52 30032 to 30047: AI Result, Floating Point 53 30064 to 30087: DI Counter 53 30096: Modbus Request Counter 53 30112 to 30119: DO Current 54 30152: Device Temperature 54 30153: VBATT 54 Holding Registers (Read/Write) 54 40000 to 40003: AO Command 54 40008 to 40011: Default AO Command 54 40016 to 40027: Channel Mode 54 40040 to 40047: AI Filter Setting 55 LUM0017AB Rev A vi

55 40072 to 40075: AO Resolution 55 40080 to 40091: DO Monostable Timeout 55 40096 to 40103: AI Zero Voltage 55 40104 to 40111: AI Voltage Span 56 40112 to 40119: AI, AO Zero Current 56 40120 to 40127: AI, AO Current Span 57 40128: Comm Connection 58 40129: Comm Timeout Latch 58 40130: Comm Port Baud Rate 58 40131: Comm Port Parity 58 40132: Comm Port Stop Bits 58 40133: Modbus Min Transmit Inter-Message Interval 58 40134: RS-485 Turn-On Delay 59 40135: RS-485 Turn-Off Delay 59 Modbus Timing 60 Chapter 5: Additional I/O Expansion Information 63 Serial Base Dimensions 64 Expansion Module Dimensions 65 Physical Specifications 66 Appendix A: Firmware updates 67 Version 2.2.0 67 Version 2.1.0 67 Glossary 69 Index 71 LUM0017AB Rev A vii

Preface This document includes the following regarding the FreeWave I/O Expansion products: l A basic introduction to the Serial Bases and Expansion Modules that make up the I/O product line. l Descriptions of each port and LED on Serial Bases and Expansion Modules. l A description of the parameters required for each channel. l Steps to setting up and programming a stack of Expansion Modules using Tool Suite. l Pin out and mechanical drawings. l Modbus register map details. For information about the firmware releases that apply to the I/O Expansion products, see Appendix A. Audience The contents of this manual assumes that you are familiar with the Modbus protocol. For more information about the protocol, see www.modbus.org/specs.php. Notational Conventions This document uses the following notational conventions: l Bold - Indicates items that you select, parameter settings, and parameter names. l Warning! - Indicates a situation that may cause damage to the transceiver, data, or network. l - Provides time saving or informative suggestions about using the product. The term "radio" and "transceiver" are used throughout this manual to refer to the described devices. ix

Contacting FreeWave Technical Support For up-to-date troubleshooting information, check the Support page at www.freewave.com. FreeWave provides technical support Monday through Friday, 7:30 AM to 5:30 PM Mountain Time (GMT -7). Call toll-free at 1.866.923.6168, within Colorado call 303.381.9200, or contact us through email at [email protected]. Documentation Feedback Send comments or questions about this document's content to [email protected]. Include the title of the document or the document's part number and revision letter (found in the footer) in your email. x

Chapter 1: Introduction The I/O Expansion product family provides expandable digital input, digital output, analog input, and analog output capabilities for any device with a Modbus controller. Expandable I/O can be added directly to PLCs, RTUs, and SCADA hosts. I/O Expansion can also integrate into new and existing wireless communication systems such as proprietary, licensed and unlicensed, cellular and satellite radio systems. The I/O Expansion Module may either be stacked on an applicable I/O base or can serve as expandable I/O modules through a serial connection. Regardless of the configuration, up to 15 modules can be stacked on a single Radio Base or Serial Base, providing up to 192 I/O points, including those on the Base Module. About Base Modules and Expansion Modules The bottom unit in a stack of I/O Expansion Modules is referred to as the Base Module and provides communication to the outside world. The Base Module in a stack can be one of the following: 1

LUM0017AB Rev A l Radio Base - A Radio Base provides expandable, wireless I/O and can be polled and controlled wirelessly across FreeWave's wireless serial network. The FGR2-IO-IOE radio is the only Radio Base device available. The photo of an I/O Expansion stack on previous page shows an FGR2-IO- IOE as the Base Module. For information about the FGR2-IO-IOE, see the Wire Replacement I/O User Manual (part number LUM0008AC) This document does not provide reference information for the FGR2-IO-IOE. l Serial Base - A Serial Base provides expandable, wired I/O to any device with RS232, RS422, and RS484 data communication interfaces. Serial Bases come in the following models: l IOE-4404 l IOE-4422 l IOE-4440 Expansion Modules can be added to a Radio Base or Serial Base device to expand the number of I/O channels available. Expansion Modules on their own do not communicate. They must be connected to a Radio Base or a Serial Base. The following expansion modules are available. The "X" in the model number indicates that the model is an expansion module. l IOEX-4404 l IOEX-4422 l IOEX-4440 Different isolated channels are available depending on the model number. For more information, see "Channel Functions and Specifications" on page 15. Serial Base Connectors The following sections describe each connector on a Serial Base and the pin layout of each. For information about the I/O channels available on the Serial Base, see "Channel Functions and Specifications" on page 15. 2

Serial Base Data Connector This 10-pin connector provides serial communication and power to the Serial Base and supports RS232, RS422, and RS485 serial communication interfaces. When Expansion Modules are connected to the Serial Base, power is provided to the Expansion Modules through the power and ground pins on this connector. If the Expansion Modules have a Serial Base, power can alternatively be supplied by the serial 485/Power Connector described in "Serial Base 485/Power Connector" on page 3. The following pin-out summarizes the function of each pin in the 10-pin data connector: 1. VBAT Power 2. Interrupt Interrupt used to place the Base into Setup Mode 3. DTR Data Terminal Ready 4. Ground Ground 5. TXD Transmit Data 6. Ground Ground 7. RXD Receive Data 8. DCD Carrier Detect 9. RTS Request to Send 10. CTS Clear to Send Pin 1 is the closest pin to the edge of device: Serial Base 485/Power Connector This 4-pin connector provides serial communication and power to the Serial Base and any attached Expansion Modules. The serial communication interface is limited to two-wire 485 when a shorting connector is placed on the 10-pin connector on top of the device. The shorting connector shorts pins 5 (TXD) to 7 (RXD) for Bus + and pins 9 (RTS) and 10 (CTS) for Bus -. The following pin-out summarizes the function of each pin: 3

LUM0017AB Rev A B Bus – for two-wire 485 half duplex with shorting connector A Bus + for two-wire 485 half duplex with shorting connector VBAT Power Ground Ground The pins are in the following orientation: Serial Base Diagnostics Connector This 20-pin connector provides configuration access to the Serial Base with the Tool Suite configuration software without removing either the Data Connector or 485/Power connector. The 20-pin connector on an attached Expansion Module passes data and settings directly to and from the base module (Serial Base or Radio Base). Expansion Module Connectors The following sections describe each connector on an I/O Expansion Module. For information about the I/O channels available on the Expansion Modules, see "Channel Functions and Specifications" on page 15. 4

Expansion Module Data Connector The 10-pin data connector passes data directly through to the Serial Base or Radio Base. For more information, see "Serial Base Data Connector" on page 3 or the documentation for the Radio Base for detailed descriptions. The data connector on the top Expansion Module can be used to provide power to all devices in the stack. Connecting power to the 10-pin data connector on the top module delivers the supply voltage to all modules in the stack. The following pin-out summarizes the function of each pin: 1. VBAT Power 2. Interrupt Interrupt used to place the Base into Setup Mode 3. DTR Data Terminal Ready input of Serial Base 4. Ground Ground 5. TXD Transmit data output of the Serial Base or Radio Base. Y+ data of RS485 output. 6. Ground Ground 7. RXD Receive data input of the Serial Base or Radio Base. A+ data of RS485 input. 8. DCD Carrier Detect output of Radio Base 9. RTS B- data of RS485 input 10. CTS Z- data of RS485 input Expansion Module Diagnostics Connector The 20-pin diagnostic connector provides board-to-board communication for stacked Expansion Modules, and can be used for programming. It does not serve any diagnostic function. I/O Device LEDs The LEDs on the Serial Base and Expansion Modules in a stack help identify the state of the system and the current action happening with each device in the stack: l Power - Labeled with a P in enclosed Serial Bases and Expansion Modules, this is the LED closest to the edge of the device. l Inbound - Labeled with an I in enclosed Serial Bases and Expansion Modules, this is the middle LED. l Outbound - Labeled with an O in enclosed Serial Bases and Expansion Modules, this is the LED closest to the I/O channels. The LEDs are either red or green, solid, flashing intermittently, or blinking. The state of each LED is described in the sections below. Warning! If all the LEDs are solid red or blinking red the device is receiving a firmware upgrade. Do not unplug the device or remove the device's power during a firmware upgrade. The device could become inoperable. 5

LUM0017AB Rev A Serial Base LEDs Serial Base Module LED State Power (P) Inbound (I) Outbound (O) Solid green Power on - - Intermittent green flash Low power mode Receiving a message from the rest of the stack Device is sending data after being polled Blinking green Communication reset mode, device is gathering startup settings - Device is sending data when polled Solid red Firmware upgrade initiated* 1) When the other LEDs are also solid red a firmware upgrade has been initiated 1) When the other LEDs are also solid red a firmware upgrade has been initiated Intermittent red flash - 1) If other LEDs are also intermittently flashing red, internal checks after firmware upgrade 2) Device is being polled If other LEDs are also intermittently flashing red, internal checks after firmware upgrade Blinking red Internal checks after firmware upgrade Internal checks after firmware upgrade Sending information to devices in the stack * The Incoming and Outgoing LEDs may appear to blink depending on how many registers are read during a single polling cycle. Expansion Module LEDs Expansion Module LED State Power (P) Inbound (I) Outbound (O) Solid green Power on - - Intermittent green flash Low power mode - Sending information down the stack to the base Blinking green * Communication reset mode, device is gathering startup settings - - Solid red Firmware upgrade initiated* 1) When the other LEDs are also solid red a firmware upgrade has been initiated 2) Receiving a command from the base 1) When the other LEDs are also solid red a firmware upgrade has been initiated 2) Receiving a command from the base Intermittent red flash - Device is being polled - Blinking red * Internal checks after firmware upgrade Internal checks after firmware upgrade Sending information to devices in the stack * The Incoming and Outgoing LEDs may appear to blink depending on how many registers are read during a single polling cycle. 6

Powering Serial Bases and Expansion Modules Power is shared between all devices in a stack of Expansion Modules. When one device in the stack is powered (Expansion Module, Serial Base, or Radio Base) then all connected devices are powered. A stack of Expansion Modules can be powered through one of the following: l Data Connector on the top Expansion Module. See "Expansion Module Data Connector" on page 5. l 485/Power Connector on a Serial Base. See "Serial Base 485/Power Connector" on page 3. l I/O Connector on a Radio Base. See the Wire Replacement I/O User Manual (part number LUM0008AC) for details about powering the FGR2-IO-IOE. Power supply voltage limits for all Serial Base and Expansion Modules are as follows: Item Min Typical Max Units Power Supply Voltage 7.5 - 30 V The following table provides the current consumption for a sample Serial Base and Expansion Module configuration as follows: Channel Configuration Current Consumption at 12 V (in mA) Universal Channels Input-Only Channels Isolated Channels 12 V Disabled Disabled Disabled 17.0 DO: Off Disabled DO: Off 17.0 DO: On Disabled DO: On 18.1 DI DI DI 17.0 AO: 0 mA Disabled Disabled 18.2 AO: 20 mA Disabled Disabled 98.2 AI: Voltage AI: Voltage Disabled 17.0 AI: Current AI:Current Disabled 25.0 7

Chapter 2: Setting Up and Programming Serial Bases and Expansion Modules You can setup and program Serial Bases and Expansion Modules using the Modbus registers or using the configuration tools provided in Tool Suite. Using the Configuration application in Tool Suite, you can define the settings for the most common parameters for both the Serial Bases and their Expansion Modules in your network. You can also use the Modbus Interface application in Tool Suite to validate and troubleshoot the Modbus configuration of the devices in the stack. Tool Suite is available on the User Manual and System Tools CD and is also available for download from www.freewave.com. For more information about using Tool Suite, see the Tool Suite User Manual available on the User Manual and System Tools CD or by selecting File > Help in the Tool Suite software. Reading Serial Bases and Expansion Modules in Tool Suite Using Tool Suite, you can connect a stack of I/O devices and read and program all the devices in the stack by connecting to the last Expansion Module in the stack. When you read the device within Tool Suite, Tool Suite reads the settings starting from the Serial Base or Radio Base and for each Expansion Module in the stack. To read and program a Serial Base and Expansion Modules using Tool Suite, you need to connect the last device in the stack to a desktop computer or a laptop that runs the Tool Suite software. Note: If you have an IOE-X-4422PC/IOE-X-4422P (previous versions of the I/O Expansion products, you can update an IOE-4422or IOEX-4422 model respectively, using the settings read from the older models. 9

LUM0017AB Rev A 1. Connect a serial or diagnostic cable between the computer or laptop and the device. Using a diagnostic cable is recommended. If you need information to identify the ports, see "Expansion Module Data Connector" on page 5 and "Expansion Module Diagnostics Connector" on page 5. 2. If not already connected to power, connect the power supply to the radio and the power source to turn on the device. If you connected to the device with the diagnostic cable, the radio enters Setup mode automatically. Continue with step 4 below. If you connected to the device with the serial cable, continue with step 3. 3. If you are using the serial cable (ASC3610DJ), or are using a board-level device, press the button on the serial cable or short pins 2 & 4 (Brown to Black) on the white 10 pin header connected to the data port When in Setup mode, the three LEDs on a Serial Base flash green continuously. Note: When a Radio Base is in Setup mode, the three LEDs on the Radio Base display solid green. 4. In Tool Suite, click Configuration in the Applications pane to display the Configuration application. 5. If you are using a Serial Base, click Read Serial Base in the Configuration ribbon to read the current settings for each device in the stack. If you are using a Radio Base, click Read Radio. Tool Suite reads the stack starting with the base and reads each Expansion Module starting with the one connected directly to the base. Defining Channel Settings in Tool Suite Each Serial Base and Expansion Module comes with 12 channels as described in "Channel Functions and Specifications" on page 15. Using Tool Suite, you can set whether a channel is a Digital Output, Digital Input, Analog Output, Analog Input, or a Sensor Power channel. Important: If you change a channel to a different function, for example, if you change a Universal Channel from Digital Input to Analog Input, wait 2 seconds for reliable readings from the channel. For more information about using Tool Suite, see the Tool Suite User Manual available on the User Manual and System Tools CD or by selecting File > Help in the Tool Suite software. 1. Open Tool Suite and click Configuration in the Applications pane to display the Configuration application. 2. From the Networks section of the Configuration ribbon, select the network in which the I/O devices reside. For information abut adding networks, see the Tool Suite User Manual available by selecting File > Help in the Tool Suite application. 3. Do one of the following: l If you want to program a device directly, see "Reading Serial Bases and Expansion Modules in Tool Suite" on page 9to load the current device settings.The device stack displays in the 10

Template Devices tab. l To create a template that you can load to a device at a later time, click Template Devices at the bottom of the Device tree. To add a Serial Base, right-click anywhere in the Device tree and select Add > Serial Base Template, name the device, select the module type, and click Add. To add an Expansion Module, first add a Serial Base, then right-click the Serial Base in the Device tree and select Add Expansion Module. Name the device, select the module type, and click Add. 4. In the Device tree, select the device you want to configure. The current settings display in the right pane and are grouped by channel type. If you are setting a Serial Base, you can also set the settings that apply to the entire stack. For more information, see "Settings That Apply to the Entire Stack" on page 13. 5. Click the tab that contains the channel you want to configure: l Universal Channels - Channels 1 to 4 l Input-Only Channels - Channels 5 to 8 l Isolated Channels - Channels 9 to 12. 6. In the I/O Mode field for the channel you want to configure, select the channel function, for example, Digital Output. If you are not using a channel on a device, select Disabled to indicate that the channel is not in use. The other fields that apply to the channel function you selected display when you select the channel function. For information about each parameter setting, see the descriptions of each channel type in "Channel Functions and Specifications" on page 15. Your changes are saved to the Tool Suite database as you make them. 7. To send the configurations to a device, do one of the following: l To send only the parameters you have changed to a single device in the stack, select the device within the Configuration application, and click Quick in the Device Title ribbon. This option is only available if you clicked Read Serial Base and are not sending parameter settings from a template to the device. l To send all the settings for all parameters, select the device within the Configuration application, and click All in the Device Title ribbon. l To set a device back to its factory default settings, select the device within the Configuration application, click Default in the Device Title ribbon. l To send changes to all the devices in a stack at one time, right-click the base in the Devices tree within the Configuration application and select Program Stack. 11

LUM0017AB Rev A Upgrading Serial Bases and Expansion Modules to the Latest Firmware If Tool Suite is connected to a device, and a new version of the firmware is available for that model, an indication displays within the Configuration application's Device Information tab. For more information about viewing the latest firmware versions available, see the Tool Suite User Manual available from the File > Help menu within Tool Suite. Use the steps below to upgrade a device to the latest firmware: 1. With the device connected to Tool Suite and in Setup mode, in Tool Suite click Configuration in the Applications pane to display the Configuration application. 2. Click Read Serial Base to read the latest settings and configurations from the Serial Base and all the Expansion Modules in the stack. 3. In the Devices tree, select the device you want to upgrade. 4. Click Upgrade Module in the Firmware section of the Configuration ribbon. 5. Click Yes at the prompt to proceed or No to cancel without installing the new firmware. Tool Suite identifies and displays the firmware version that is loaded on the connected device and displays the latest version of firmware available for that model. 6. Click Yes to proceed with the upgrade, or No to exit. The system displays the progress of the firmware upgrade in Tool Suite. After complete, a message displays that the firmware upgrade was successful. While the device's firmware is being updated, each LED displays solid red . Warning! Do not disconnect the stack from Tool Suite or from power while the firmware is updating. If the connection or power is lost during the upgrade, the device could become inoperable. Programming Stack Settings in Tool Suite The Serial Base contains settings, such as power settings and stack-wide Modbus settings that you program on the Serial Base device. The Serial Base then sends those settings to each Expansion Module in the stack. You can only set these settings on the Serial Base. 1. Open Tool Suite and click Configuration in the Applications pane to display the Configuration application. 2. From the Networks section of the Configuration ribbon, select the network in which the I/O devices reside. For information about adding networks, see the Tool Suite User Manual available by selecting File > Help in the Tool Suite application. 3. Do one of the following: l If you want to program a device directly, see "Reading Serial Bases and Expansion Modules in Tool Suite" on page 9 to load the current device settings. The device stack displays in the Template Devices tab. 12

l To create a template that you can load to a device at a later time, click Template Devices at the bottom of the Device tree. To add a Serial Base, right-click anywhere in the Device tree and select Add > Serial Base Template, name the device, select the module type, and click Add. 4. Select the device in the Device tree you want to configure and select the Stack Settings tab. 5. Make any necessary changes to the settings as described in the sections below. 6. To send the configurations to the Serial Base, do one of the following: l To send only the parameters you have changed to a single device in the stack, select the device within the Configuration application, and click Quick in the Device Title ribbon. This option is only available if you clicked Read Serial Base and are not sending parameter settings from a template to the device. l To send all the settings for all parameters, select the device within the Configuration application, and click All in the Device Title ribbon. l To set a device back to its factory default settings, select the device within the Configuration application, click Default in the Device Title ribbon. Settings That Apply to the Entire Stack The following parameters are set on the Serial Base and apply to the Serial Base and to each Expansion Module in the stack attached to the serial base. The parameters that can also be set through the Modbus interface include the Modbus register in the description. Set the following parameters to establish the serial port communication settings between the computer and the stack: Field Description Serial Protocol The protocol the serial port uses, RS232, RS422, or RS485. Modbus Register: 40129 Comm Connection Port Speed The baud rate between the computer and the data port. The default baud rate is 19200. Modbus Register: 40131 Comm Port Baud Rate Parity The data parity of the network. The default is None. Modbus Register: 40132 Comm Port Parity Stop Bits The amount of time the transceiver stops and ways at the end of each character to wait for the next start bit. There currently is only one selection, 1-bit. Modbus Register: 40133 Comm Port Stop Bits Set the following to establish the communication timeout settings and the amount of power the stack requires: 13

LUM0017AB Rev A Field Description Default Delay The time the transceiver waits to receive a Modbus command or query before a communication timeout occurs. If a communication timeout occurs, the default state for the module's channels are enabled. Default states are defined in the Default AO Command and Default DO, Sensor Power State Modbus registers. If these registers are not set, the factory default settings are used. Power Mode Allows the Serial Base and all the Expansion Modules in the stack to use less power. The options are Regular and Low. Set the following to establish the communication and message characteristics of the Modbus interface: Field Description Modbus Address Mode Determines the range of acceptable Modbus IDs for the device. If set to 8-Bit, the Modbus ID can be between 1 and 246. If set to 16-Bit, the Modubs ID can be between 1 and 65535. Modbus ID The Modbus identification number for the device. The acceptable range of IDs is determined by the Modbus Address Mode. Modbus Message Interval Determines the time in milliseconds Modbus Register: Modbus Min Transmit Inter-Message Interval AI Integer Result Justification Determines the alignment of the AI Integer Result register. Options include Left and Right. Floating Point Word Order Determines the position of the Most Significant Word (MSW) and Lease Significant Word (LSW) in the AI Floating Point Result register for all devices in the stack. Regular word order places the MSW at the lower address and the LSW at the higher address. For example MSW = 30032, LSW = 30033. Inverted word order places the LSW at the lower address and the MSW at the higher address. For example LSW = 30032, MSW = 30033). Long Integer Word Order Determines the position of the MSW and LSW in the AI Result, Integer registers for all devices in the stack. Regular word order places the MSW at the lower address and the LSW at the higher address. For example, MSW = 30000, LSW = 30001. Inverted word order places the LSW at the lower address and the MSW at the higher address. For example, LSW = 30000, MSW = 30001. 14

Chapter 3: Channel Functions and Specifications All I/O Expansion devices have 12 I/O channels. All models feature four universally configurable channels, four input-only channels, and four electrically isolated channels. The different models have the following I/O configuration: l IOE-4440 and IOEX-4440 - All four isolated channels are digital inputs. l IOE-4422 and IOEX-4422 - Two isolated channels are digital inputs and two are digital outputs. l IOE-4404 and IOEX-4404 - All four isolated channels are digital outputs. IOE-4440 and IOEX-4440 Channels The following channels are available on the IOE-4440 and IOEX-4400 Channels. Any channel column with a dot ( • ) in the table below is available in this model. Universal Channels Input-Only Channels Isolated Channels 4440 Channels Number 1 2 3 4 5 6 7 8 9 10 11 12 Digital Input 12 • • • • • • • • • • • • Digital Output 4 • • • • Analog Input 8 • • • • • • • • Analog Output 4 • • • • Sensor Power 4 • • • • 15

LUM0017AB Rev A IOE-4422 and IOEX-4422 Channels The following channels are available on the IOE-4422 and IOEX-4422 Channels. Any channel column with a dot ( • ) in the table below is available in this model. Universal Channels Input-Only Channels Isolated Channels 4422 Channels Number 1 2 3 4 5 6 7 8 9 10 11 12 Digital Input 10 • • • • • • • • • • Digital Output 6 • • • • • • Analog Input 8 • • • • • • • • Analog Output 4 • • • • Sensor Power 4 • • • • IOE-4404 and IOEX-4404 Channels The following channels are available on the IOE-4404 and IOEX-4404 Channels. Any channel column with a dot ( • ) in the table below is available in this model. Universal Channels Input-Only Channels Isolated Channels 4404 Channels Number 1 2 3 4 5 6 7 8 9 10 11 12 Digital Input 8 • • • • • • • • Digital Output 8 • • • • • • • • Analog Input 8 • • • • • • • • Analog Output 4 • • • • Sensor Power 4 • • • • The I/O channels are numbered left to right and each as a channel port and a signal ground port: 16

Universal Channels Channels 1, 2, 3, and 4 on all Serial Base and Expansion Modules are universal channels. Universal channels can be configured as Digital Input, Digital Output, Analog Input, Analog Output, or Sensor Power channels. The following sections describe the features and characteristics of each universal channel configuration. Universal Channel as Digital Input A universal Digital Input provides data to the following registers: l 10000 to 10011: DI State - The present state of the channel. l 30064 to 30087: DI Counter - The number of pulse edges seen on the channel. You can configure a Digital Input's settings in either Tool Suite or directly through the register settings. For information about setting a universal channel as a Digital Input, see "Defining Channel Settings in Tool Suite" on page 10. Use the information in the following table to configure a Digital Input. 17

LUM0017AB Rev A Field in Tool Suite Register Description Counter Edge 96 to 106: DI Counter Falling Edge Increment Sets the pulse edge on which the DI Counter register increments. Select Falling Edge to increment the DI Counter register when the input goes from 1 to 0. In the Modbus register, this is (1) ON. Select Rising Edge to increment the DI Counter register when input goes from 0 to 1. In the Modbus register, this is (0) OFF. Resistor Pull 40056 to 40063: Resistor Pull Setting Select Pull-Down to connect a pull-down resistor to ground for use with closed- contact-to-voltage inputs. In the Modbus register, this is 1. Select Pull-Up to connect a pull-up resistor for closed-contact-to-ground inputs. In the Modbus register, this is 2. Select None to disable both resistors. In the Modbus register, this is 0. Counter Debounce 152 to 163: Pulse Counter De- bounce Enables the system to take multiple samples before determining that an edge is real and not noise on the channel. Universal Digital Inputs support pulse counting for input sig- nals up to 100 Hz; de-bounced pulse count- ing for input signals to 10 Hz. Set additional functionality for a Digital Input using the following registers that do not have an equivalent field in Tool Suite: Register Description 72 to 83: DI Counter Clear Clears the Digital Input counter to 0. Critical counting ensures that each pulse is reported by only clearing pulses that you have read. For more information, see the DI Counter Clear register description on page 51. 136 to 147: DI Counter Latch Allows you to scan for the input change at a much slower speed than the duration of the pulse. For more information, see the DI Counter Latch register description on page 52. 18

A universal channel configured as a Digital Input has the following specifications: Item Min Typical Max Units Input Low (OFF) voltage 0 - 2.5 V Input High (ON) voltage 3.0 - Actual Power Supply Voltage V Pulse counting frequency - - 100 Hz De-bounced pulse counting frequency - - 10 Hz Pulse width 4 - - ms De-bounced pulse width 40 - - ms Pull-up resistance - 1 - kΩ Pull-up voltage (measured externally) - 3.0 - V Pull-down resistance to ground - 10 - kΩ Universal Channel as Digital Output A universal channel configured as a Digital Output has the following characteristics: l Solid-state digital outputs with reverse-blocking Schottky diodes are rated at 1 A across the complete operating temperature range. l Output voltage range up to 30 V, or device supply voltage, whichever is less. l Circuitry protection. If an overload occurs, the channel turns off automatically. For more information, see the description for 10024 to 10035: Circuitry Protection Active register on page 52. l Each channel has a ground pin for current return that must be used for large currents (over 0.1 A). l Reports approximate amount of current flowing to ground. l Configurable for normally open or normally closed. A Digital Output reports its current in milliAmps to the 30112 to 30119: DO Current register. You can configure a Digital Output's settings in either Tool Suite or directly through the register settings. For information about setting a universal channel as Digital Output, see "Defining Channel Settings in Tool Suite" on page 10. Use the information in the following table to configure a Digital Output. 19

LUM0017AB Rev A Field in Tool Suite Register Description Apply Default Output 24 to 35: Apply Default DO, AO, Sensor Power If set to Yes, when a device powers up or a communication timeout has occurred, the channel uses the values set in the Default DO, Sensor Power State register. In the Modbus register, this is (1) ON. If set to Yes, also set the Default Output field or the Default DO, Sensor Power State register. If set to No, when a device powers up or a communication timeout has occurred, the channel remains off. In the Modbus register, this is (0) OFF. Default Output 48 to 59: Default DO, Sensor Power State If you selected to apply defaults on power up or after a communication timeout, use this setting to set the default state of the channel. Monostable Time (msec) 40080 to 40091: DO Monostable Timeout Enter the amount of time in milliseconds from 1 to 60000 (1 minute) after which the Digital Output channel goes to the state defined in the Default DO, Sensor Power State register. When set to 0 milliseconds, the channel is bi-stable and maintains its most recent state until it receives a command to change its state. Set the following field in the Stack Settings tab in Tool Suite for the Serial Base in the stack: Field Description Default Delay (sec) Enter the amount of time in seconds that an Expansion Module or Serial Base waits for a Modbus command or query before a communication timeout occurs. When a communication timeout occurs, the action defined in the Apply Default DO, AO, Sensor Power is taken. For more information, see the register description on page 50. Set additional functionality for a Digital Output using the following registers that do not have an equivalent field in Tool Suite: Register Description 0 to 11: DO, Sensor Power On Set to (1) ON to sink current to ground when the transistor powers up. When set to (0) OFF, the transistor turns off and the output remains floating, unless the Resistor Pull Setting register is set to 1 or 2. 20

Register Description 40056 to 40063: Resistor Pull Setting Select Pull-Down to connect a pull-down resistor to ground for use with closed-contact-to-voltage inputs. In the Modbus register, this is 1. Select Pull-Up to connect a pull-up resistor for closed-contact-to- ground inputs. In the Modbus register, this is 2. Select None to disable both resistors. In the Modbus register, this is 0. A universal channel configured as a Digital Output has the following specifications: Item Min Typical Max Units Output ON sinking current - - 1 A Output ON resistance to ground* 0 0.1 0.2 Ω Output ON circuitry protection limit - 1.25 - A Output OFF resistance to ground 234 - - kΩ External load voltage connection 0 - VBAT V Pull-up resistance - 1 - kΩ Pull-up voltage (measured externally) - 3.0 - V Pull-down resistance to ground - 10 - kΩ * Dynamic resistance; a reverse-blocking Shottky diode is in series. Universal Channel as Analog Input A universal channel configured as an Analog Input returns data to the 30000 to 30016: AI Integer Result register and 30032 to 30047: AI Floating Point Result register associated with the channel. The channel also has circuitry protection. If an overload occurs, the channel turns off automatically. For more information, see the description for 10024 to 10035: Circuitry Protection Active register on page 52. You can configure an Analog Input's settings in either Tool Suite or directly through the register settings. For information about setting a universal channel as an Analog Input, see "Defining Channel Settings in Tool Suite" on page 10. Use the information in the following table to configure an Analog Input. 21

LUM0017AB Rev A Field in Tool Suite Equivalent Register Description Voltage Or Current 120 to 127: AI Current Mode Select Voltage to return information in Volts (V). In the Modbus register, this is (1) ON. Select Current to return current information in milliAmps (mA). In the Modbus register, this is (0) OFF. l 20-bit analog-to-digital converter yields 0.10% reading accuracy across entire operating temperature for voltage and current input signals. l Voltage range supports 1 to 5 V and 0 to 10 V analog signals. Complete voltage range is -2.5 to 12.5 V. l Current range supports 4 to 20 mA analog signals. Complete current range is 0 to 25 mA. Zero Voltage (mV) or Zero Current (mA) 40112 to 40119 AI, AO Zero Current 40096 to 40103: AI Zero Voltage Calibrates the low end of the Analog Input to zero. Set between 0 to 10000 mV or mA depending on your setting in the Voltage Or Current field. Voltage Span (mV) or Current Span (μA) 40104 to 40111: AI Voltage Span 40120 to 40127: 40 AI, AO Current Span Sets the high end, or range, of the Analog Input. See the AI, AO Current Span register description on page 54 for setting recommendations. For 16-bit readings, set between 0 and 65535. For 20-bit readings, set between 0 and 1,048,575. Filtering/ Averaging 40040 to 40027: AI Filter Setting Sets a moving average, in seconds, for the AI Integer Result and AI Floating Point Result registers. You can use this setting to help filter out signal noise if in a noisy environment. FreeWave recommends leaving this setting at 0. Select from the following settings: l 0 - Disabled l 1 - 10 seconds (0.1 Hz) l 2 - 25 seconds (0.04 Hz) l 3 - 50 seconds (0.02 Hz) l 4 - 100 seconds (0.01 Hz) l 5 - 250 seconds (0.004 Hz) 22

Field in Tool Suite Equivalent Register Description Resistor Pull 40056 to 40063: Resistor Pull Setting Select Pull-Down to connect a pull-down resistor to ground for use with closed-contact-to- voltage inputs. In the Modbus register, this is 1. Select Pull-Up to connect a pull-up resistor for closed-contact-to-ground inputs. In the Modbus register, this is 2. Select None to disable both resistors. In the Modbus register, this is 0. Integer Type 112 to 119: AI Signed Integer Result Sets the integer type to a signed or unsigned integer in the AI Integer Result register. A signed integer is required to report negative input voltages or if the RTU/PLC supports signed integers only. Setting this register to 0 results in an unsigned integer returned in the AI Integer Result register. Setting to 1 results in a signed integer. Set the following fields in the Stack Settings tab in Tool Suite for the Serial Base: Field Description Floating Point Word Order Determines the position of the Most Significant Word (MSW) and Lease Significant Word (LSW) in the AI Floating Point Result register for all devices in the stack. Regular word order places the MSW at the lower address and the LSW at the higher address. For example MSW = 30032, LSW = 30033. Inverted word order places the LSW at the lower address and the MSW at the higher address. For example LSW = 30032, MSW = 30033). AI Integer Results Justification Determines the alignment of the AI Integer Result register. Options include Left and Right. A universal channel configured as an Analog Input has the following specifications: Item Min Typical Max Units Voltage Input Analog input voltage -2.5 - lesser of 30 V or VBAT V Full-scale input voltage* - 13.75 - V Resolution* - 20 - Bits Scaling factor (all 20 bits)* - 9.54 - μV/LSB 23

LUM0017AB Rev A Item Min Typical Max Units Scaling factor (upper 16 bits)* - 153 - μV/LSB Accuracy error (0 to 5 V input) 0 - Greater of 1 mV or 0.10%of input mA Current Input Analog input current 0 - 25 mA Circuitry protection limit - 25 - mA Internal sense resistor 249 250 251 Ω Full-scale input current range* - 40 - mA Resolution - 20 - Bits Scaling factor (all 20 bits)* - 38.1 - nA/LSB Scaling factor (upper 16 bits)* - 610 - na/LSB Accuracy error (4 to 20 mA input) 0 - Greater of 4 μA or 0.10%of input *These settings apply only when zero and span registers are set to 0 (default) Universal Channel as Analog Output You can configure a Analog Output's settings in either Tool Suite or directly through the register settings. For information about setting a universal channel as an Analog Output, see "Defining Channel Settings in Tool Suite" on page 10. Use the information in the following table to configure an Analog Output. Field in Tool Suite Register Description Scaling 40072 to 40075: AO Resolution Sets the resolution of the AO Command register. Set to one of the following options: l microAmps (1 microAmp per bit) l 16-bit resolution l 15-bit resolution. This is the recommended setting PLCs or RTUs that only support 16-bit signed integers. l 14- bit resolution l 12-bit resolution Current range supports 4 to 20 mA analog signals. Complete current range is 0 to 25 mA. 24

Field in Tool Suite Register Description Apply Default Output 24 to 35: Apply Default DO, AO, Sensor Power If set to Yes, when a device powers up or a communication timeout has occurred, the channel uses the values set in the AO Command register. In the Modbus register, this is (1) ON. If set to Yes, also set the Default Output field or the Default AO Command register. If set to No, when a device powers up or a communication timeout has occurred, the factory defaults are applied to the channel. In the Modbus register, this is (0) OFF. Default Output 40008 to 40011: Default AO Command If you selected to apply defaults on power up or after a communication timeout, use this setting to set the default state of the channel. Offset/Zero 40112 to 40119: AI, AO Zero Current Calibrates the low end of the Analog Output to zero. Set between 0 to 10000 mV or mA depending on your setting in the Voltage Or Current field. Span 40112 to 40119: AI, AO Zero Current 40120 to 40127: AI, AO Current Span Sets the high end, or range, of the Analog Output. See the AI, AO Current Span register description on page 57 for setting recommendations. For 16-bit readings, set between 0 and 65535. For 20-bit readings, set between 0 and 1,048,575. Resistor Pull 40056 to 40063: Resistor Pull Setting Select Pull-Down to connect a pull-down resistor to ground for use with closed-contact-to-voltage inputs. In the Modbus register, this is 1. Select Pull-Up to connect a pull-up resistor for closed-contact-to-ground inputs. In the Modbus register, this is 2. Select None to disable both resistors. In the Modbus register, this is 0. A universal channel configured as a Analog Output has the following specifications: Item Min Typical Max Units Analog output current 0 - 22 mA Full-scale output current* - 25 - mA Resolution - 25 - Bits Scaling factor* - 1 - μA/LSB Voltage on output pin - - VBAT -0.5 V 25

LUM0017AB Rev A Item Min Typical Max Units Accuracy error (at 20 mA output) -0.25 - 0.25 % * These settings apply only when the zero and range registers are set to 0 (default). Universal Channel as Sensor Power A universal channel configured as a Sensor Power channel provides the following: l Power for sensors and transmitters up to 50 mA. l Voltage provided to the transmitter is roughly equal to the power provided to the Serial Base or Expansion Module, minus approximately 0.5 V, minus load current, multiplied by 10 ohms. l Circuitry protection. If an overload occurs, the channel turns off automatically. For more information, see the description for 10024 to 10035: Circuitry Protection Active register on page 52. You can configure a Sensor Power channel's settings in either Tool Suite or directly through the register settings. For information about setting a universal channel as a Sensor Power channel, see "Defining Channel Settings in Tool Suite" on page 10. Use the information in the following table to configure a Sensor Power channel. Field in Tool Suite Register Description Apply Default Output 24 to 35: Apply Default DO, AO, Sensor Power If set to Yes, when a device powers up or a communication timeout has occurred, the channel uses the values set in the DO, Sensor Power On register. In the Modbus register, this is (1) ON. If set to Yes, also set the Default Output field or the Default DO, Sensor Power register. If set to No, when a device powers up or a communication timeout has occurred, the factory defaults are applied to the channel. In the Modbus register, this is (0) OFF. Default Output 48 to 59: Default DO, Sensor Power State If you selected to apply defaults on power up or after a communication timeout, use this setting to set the default state of the channel. A universal channel configured as Sensor Power has the following characteristics: Item Min Typical Max Units Voltage output VBAT - 1 VBAT - 0.5 VBAT V Current output 0 - 50 mA Circuitry protection limit - 52 - mA 26

Input-Only Channels Channels 5, 6, 7, and 8 on all Serial Bases and Expansion Modules are input-only channels. Input-only channels can be configured as Digital Input and Analog Input. The following sections describe the features and characteristics of each input-only channel configuration. Input-Only Channel as Digital Input An input-only channel configured as a Digital Input provides data to the following registers: l 10000 to 10011: DI State - The present state of the channel. l 30064 to 30087: DI Counter - The number of pulse edges seen on the channel. You can configure a Digital Input's settings in either Tool Suite or directly through the register settings. For information about setting an input-only channel as a Digital Input, see "Defining Channel Settings in Tool Suite" on page 10. Use the information in the following table to configure an input-only channel Digital Input. Field in Tool Suite Register Description Counter Edge 96 to 106: DI Counter Falling Edge Increment Sets the pulse edge on which the DI Counter register increments. Select Falling Edge to increment the DI Counter register when the input goes from 1 to 0. In the Modbus register, this is (1) ON. Select Rising Edge to increment the DI Counter register when input goes from 0 to 1. In the Modbus register, this is (0) OFF. 27

LUM0017AB Rev A Field in Tool Suite Register Description Counting Speed 92 to 95: High-Speed DI Counter on Isolated Determines which channels use pulse counting for input signals up to 10 kHz. If you set an input-only channel to be high-speed, its corresponding isolated channel is set to standard speed. For more information, see the High-Speed DI Counter on Isolated register description on page 51. Select Fast to set the channel to high-speed. In the Modbus register, this is (1) ON.You can assign high-speed counting to only one channel of 5 or 9, 6 or 10, 7 or 11, and 8 or 12. Note: High-speed counting is not de- bounced and inputs must not go below GND. Select Standard to set the channel to standard-speed. Standard speed counters support 100 Hz pulses, or 10 Hz pulses with de-bounce. In the Modbus register, this is (0) OFF. Resistor Pull 40056 to 40063: Resistor Pull Setting Select Pull-Down to connect a pull-down resistor to ground for use with closed- contact-to-voltage inputs. In the Modbus register, this is 1. Select Pull-Up to connect a pull-up resistor for closed-contact-to-ground inputs. In the Modbus register, this is 2. Select None to disable both resistors. In the Modbus register, this is 0. Counter Debounce 152 to 163: Pulse Counter De- bounce Enables the system to take multiple samples before determining that an edge is real and not noise on the channel. Digital Inputs support pulse counting for input signals up to 100 Hz; de-bounced pulse counting for input signals to 10 Hz. Note: High-speed counting is not de- bounced and inputs must not go below GND. Important: For accurate counting at high speed, the voltage at the Digital Input pin must not drop below 0 V. Proper grounding techniques and short wiring connections are necessary to ensure accurate counting for high speed signals. If the voltage at the Digital Input pin drops below 0 V, there may be false edges detected and the Digital Input pulse count can be higher than expected. 28

Set additional functionality for a Digital Input using the following registers that do not have an equivalent field in Tool Suite: Register Description 72 to 83: DI Counter Clear Clears the Digital Input counter to 0. Critical counting ensures that each pulse is reported by only clearing pulses that you have read. For more information, see the DI Counter Clear register description on page 51. 136 to 147: DI Counter Latch Allows you to scan for the input change at a much slower speed than the duration of the pulse. For more information, see the DI Counter Latch register description on page 52. An input-only channel configured as a Digital Input has the following specifications: Item Min Typical Max Units Input low (OFF) voltage 0 - 2.5 V Input high (ON) voltage 3.0 - VDD V Pulse counting frequency, standard speed - - 100 Hz Pulse counting frequency, high speed - - 10 kHz Pulse counting frequency, de-bounced pulse - - 10 Hz Pulse width, standard speed 4 - - ms Pulse width, high-speed 40 - - μs Pulse width, de-bounced 40 - - ms Pull-up resistance - 1 - kΩ Pull-up voltage (measured externally) - 3.0 - V Pull-down resistance to ground - 10 - kΩ Input-Only Channel as Analog Input An input-only channel configured as an Analog Input returns data to the 3000 to 30016: AI Integer Result register and 30032 to 30047: AI Floating Point Result register associated with the channel. The channel also has circuitry protection. If an overload occurs, the channel turns off automatically. For more information, see the description for 10024 to 10035: Circuitry Protection Active register on page 52. You can configure an Analog Input's settings in either Tool Suite or directly through the register settings. For information about setting an input-only channel as an Analog Input, see "Defining Channel Settings in Tool Suite" on page 10. Use the information in the following table to configure an Analog Input. 29

LUM0017AB Rev A Field in Tool Suite Equivalent Register Description Voltage Or Current 120 to 127: AI Current Mode Select Voltage to return information in Volts (V). In the Modbus register, this is (1) ON. Select Current to return current information in milliAmps (mA). In the Modbus register, this is (0) OFF. l 20-bit analog-to-digital converter yields 0.10% reading accuracy across entire operating temperature for voltage and current input signals. l Voltage range supports 1 to 5 V and 0 to 10 V analog signals. Complete voltage range is -2.5 to 12.5 V. l Current range supports 4 to 20 mA analog signals. Complete current range is 0 to 25 mA. Zero Voltage (mV) or Zero Current (mA) 40112 to 40119: AI, AO Zero Current 40096 to 40103: AI Zero Voltage Calibrates the low end of the Analog Input to zero. Set between 0 to 10000 mV or mA depending on your setting in the Voltage Or Current field. Voltage Span (mV) or Current Span (μA) 40104 to 40111: AI Voltage Span 40120 to 40127: AI, AO Current Span Sets the high end, or range, of the Analog Input. See the AI, AO Current Span register description on page 57 for setting recommendations. For 16-bit readings, set between 0 and 65535. For 20-bit readings, set between 0 and 1,048,575. Resistor Pull 40056 to 40063: Resistor Pull Set- ting Select Pull-Down to connect a pull-down resistor to ground for use with closed- contact-to-voltage inputs. In the Modbus register, this is 1. Select Pull-Up to connect a pull-up resistor for closed-contact-to-ground inputs. In the Modbus register, this is 2. Select None to disable both resistors. In the Modbus register, this is 0. 30

Field in Tool Suite Equivalent Register Description Filtering/ Averaging 40040 to 40047: AI Filter Setting Sets a moving average, in seconds, for the AI Integer Result and AI Floating Point Result registers. Use this setting to help filter out signal noise. Select from the following settings: l 0 - Disabled l 1 - 10 seconds l 2 - 25 seconds l 3 - 50 seconds l 4 - 100 seconds l 5 - 250 seconds Integer Type 112 to 119: AI Signed Integer Result Sets the integer type to a signed or unsigned integer in theAI Integer Result register. A signed integer is required to report negative input voltages if the RTU/PLC supports signed integers only. Setting to Signed results in a signed integer. In the Modbus register, this is (1) ON. Setting to Unsigned results in an unsigned integer returned in the AI Integer Result register. In the Modbus register, this is (0) OFF. Set the following parameters in the Stack Settings tab in Tool Suite for the Serial Base: Field Description Floating Point Word Order Determines the position of the Most Significant Word (MSW) and Lease Significant Word (LSW) in the AI Floating Point Result register for all devices in the stack. Regular word order places the MSW at the lower address and the LSW at the higher address. For example MSW = 30032, LSW = 30033. Inverted word order places the LSW at the lower address and the MSW at the higher address. For example LSW = 30032, MSW = 30033). AI Integer Results Justification Determines the alignment of the AI Integer Result register. Options include Left and Right. An input-only channel configured as a Analog Input has the following specifications: 31

LUM0017AB Rev A Item Min Typical Max Units Voltage Input Analog input voltage -2.5 - 30 V Full-scale input voltage* - 13.75 - V Resolution - 20 - Bits Scaling factor (all 20 bits)* - 9.54 - μV/LSB Scaling factor (upper 16 bits)* - 153 - μV/LSB Accuracy error (0 to 5 V input) 0 - Greater of 1 mV or 0.10%of input mA Current Input Analog input current 0 - 25 mA Circuitry protection limit - 25 - mA Internal sense resistor 249 250 251 Ω Full-scale input current range* - 40 - mA Resolution - 20 - Bits Scaling factor (all 20 bits)* - 38.1 - nA/LSB Scaling factor (upper 16 bits)* - 610 - nA/LSB Accuracy error (4 to 20 mA input) 0 - Greater of 4 μA or 0.10%of input *These settings apply only when zero and span registers are set to 0 (default) 32

Isolated Channels Channels 9, 10, 11, and 12 are built in the factory for either Digital Input or Digital Output. These channels can only serve the function for which they were built. The following sections describe the features and characteristics of each isolated channel configuration. Isolated Channel as Digital Output An isolated Digital Output reports its current in milliAmps to the DO Current register and also has the following characteristics: l Mechanical relays capable of switching up to 2 A at 250 VDC or VAC l Long life relays with 80,000 cycles l Configured for normally open l Circuitry protection. If an overload occurs, the channel turns off automatically. For more information, see the description for 10024 to 10035: Circuitry Protection Active register on page 52. You can configure a Digital Output's settings in either Tool Suite or directly through the register settings.For information about setting an isolated channel as a Digital Output, see "Defining Channel Settings in Tool Suite" on page 10. Use the information in the following table to configure a Digital Output. 33

Field in Tool Suite Register Description Apply Default Output 24 to 35: Apply Default DO, AO, Sensor Power If set to Yes, when a device powers up or a communication timeout has occurred, the channel uses the values set in the Default DO, Sensor Power State register. In the Modbus register, this is (1) ON. If set to Yes, also set the Default Output field or the Default DO, Sensor Power State register. If set to No, when a device powers up or a communication timeout has occurred, the factory defaults are applied to the channel. In the Modbus register, this is (0) OFF. Default Output 48 to 59: Default DO, Sensor Power State If you selected to apply defaults on power up or after a communication timeout, use this setting to set the default state of the channel. For more information, see the Default DO, Sensor Power State register description on page 50. Monostable Time (msec) 40080 to 40091: DO Monostable Timeout Enter the amount of time in milliseconds from 1 to 60000 (1 minute) after which the Digital Output channel goes to the state defined in the Default DO, Sensor Power State register. When set to 0 milliseconds, the channel is bi- stable and maintains its most recent state until it receives a command to change its state. In addition, set the following fields in the Stack Settings tab in Tool Suite for the Serial Base in the stack: Field Description Default Delay Enter the amount of time in seconds that an Expansion Module or Serial Base waits for a Modbus command or query before a communication timeout occurs. Set the following registers that do not have equivalent fields in Tool Suite: Register Description 0 to 11: DO, Sensor Power On Set to (1) ON to sink current to ground when the transistor powers up. When set to (0) OFF, the transistor turns off and the output remains floating, unless the Resistor Pull Setting register is set to 1 or 2. 34

Register Description 40056 to 40063: Resistor Pull Setting Select Pull-Down to connect a pull-down resistor to ground for use with closed-contact-to-voltage inputs. In the Modbus register, this is 1. Select Pull-Up to connect a pull-up resistor for closed-contact-to- ground inputs. In the Modbus register, this is 2. Select None to disable both resistors. In the Modbus register, this is 0. An isolated channel configured as a Digital Output has the following specifications: Item Min Typical Max Units Output ON current across terminals - - 2 A Output ON resistance across terminals 0 - 0.120 Ω Output OFF resistance across terminals 10 - - MΩ External AC or DC voltage connection 0 - 250 V Isolated Channel as Digital Input An isolated channel configured as a Digital Input provides data to the following registers: l 10000 to 10011: DI State - The present state of the channel. l 30064 to 30087: DI Counter - The number of pulse edges seen on the channel. An isolated channel configured as a Digital Input accepts 30 VDC input signals regardless of device voltage. You can configure a Digital Input's settings in either Tool Suite or directly through the register settings. For information about setting an isolated channel as a Digital Input, see "Defining Channel Settings in Tool Suite" on page 10. Use the information in the following table to configure a Digital Input. Field in Tool Suite Register Description Counter Edge 96 to 106: DI Counter Falling Edge Increment Sets the pulse edge on which the DI Counter register increments. Select Falling Edge to increment the DI Counter register when the input goes from 1 to 0. In the Modbus register, this is (1) ON. Select Rising Edge to increment the DI Counter register when input goes from 0 to 1. In the Modbus register, this is (0) OFF. 35

Field in Tool Suite Register Description Counting Speed 92 to 95: High-Speed DI Counter on Isolated Determines which channels use pulse counting for input signals up to 10 kHz. If you set an input-only channel to be high-speed, its corresponding isolated channel is set to standard speed. Select Fast to set the channel to high-speed. In the Modbus register, this is (1) ON. You can assign high-speed counting to only one channel of 5 or 9, 6 or 10, 7 or 11, and 8 or 12. Note: High-speed counting is not de- bounced and inputs must not go below GND. Select Standard to set the channel to standard-speed. Standard speed counters support 100 Hz pulses, or 10 Hz pulses with de-bounce. In the Modbus register, this is (0) OFF. Set the following registers that do not have equivalent fields in Tool Suite: Register Description 72 to 83: DI Counter Clear Clears the Digital Input counter to 0. Critical counting ensures that each pulse is reported by only clearing pulses that you have read. For more information, see the DI Counter Clear register description on page 50. 136 to 147: DI Counter Latch Allows you to scan for the input change at a much slower speed than the duration of the pulse. For more information, see the DI Counter Latch register description on page 50. An isolated channel configured as a Digital Input has the following specifications: Item Symbol Min Typical Max Units Input Low (OFF) voltage VIL 0 - 1.2 V Input High (ON) voltage VIH 3.2 - 30 V Pulse counting frequency, standard speed FPC - - 100 Hz Pulse counting frequency, high speed FPC - - 10 kHz Pulse counting frequency, de-bounced FPCDB - - 10 Hz Pulse width, standard speed TPC 4 - - ms Pulse width, high-speed TPC 40 - - μs 36

Item Symbol Min Typical Max Units Pulse width, de-bounced TPCDB 40 - - ms 37

Chapter 4: Modbus Register Map The sections below provide a map and details for each entity in the Modbus register for the I/O Expansion Module and the Serial Base. The register map is grouped by the register type: l Holding Coils (Read/Write) l Discrete Inputs (Read Only) l Input Registers (Read-Only) l Holding Registers (Read/Write) Detailed register descriptions can be found starting on See "Holding Coils (Read/Write)" on page 50. Registers in BLUE are non-volatile registers whose values are saved through power loss. All other register settings are lost upon power loss. Important: Non-volatile registers have a limited number (> 10,000) of lifetime write cycles and should not be used in place of volatile settings to control I/O activity. Note the following when using the Modbus register: l Add 200 to the register addresses for each device in the stack to access stacked Expansion Modules. For example, if you want to set register 10004 in your 2nd expansion module, the address is 10404. l Add 1 to registers in protocol addressing (Base 0) to obtain PLC addressing (Base 1). For a reference of the most often used registers, see "Quick Reference" on page 40. Important: Modbus register readings are accurate 10 seconds after powering on the device. 39

LUM0017AB Rev A Quick Reference The table below summarizes commonly used coils and registers. The complete Modbus register map and detailed descriptions follow. Note: Protocol Addressing in the table below is Base 0. Universal Channels Input-Only Channels Isolated Channels Channel 1 2 3 4 5 6 7 8 9 10 11 12 Holding (Read/Write) Coils Digital Output, Sensor Power Setting 0 1 2 3 - - - - 8 9 10 11 Digital Input Counter Clear 72 73 74 75 76 77 78 79 80 81 82 83 Digital Input Counter Latch 136 137 138 139 140 141 142 143 144 145 146 147 Input (Read-Only) Coils Digital Input Status 10000 10001 10002 10003 10004 10005 10006 10007 10008 10009 10010 10011 Circuitry Protection Status 10024 10025 10036 10027 10028 10029 10030 10031 10032 10033 10034 10035 Input (Read-Only) Registers AI Integer Result 30000 30002 30004 30006 30008 30010 30012 30014 - - - - AI Floating Point Result 30032 30034 30036 30038 30040 30042 30044 30046 - - - - Digital Input Counter 30064 30066 30068 30070 30072 30074 30076 30078 30080 30082 30084 30086 Modbus Request Counter 30096 - - - - - - - - - - - Digital Output Current 30112 30113 30114 30115 - - - - - - - - Device Temperature 30152 - - - - - - - - - - - Device Supply Voltage 30153 - - - - - - - - - - - Holding (Read/Write) Registers Analog Output Setting 40000 40001 40002 40003 - - - - - - - - Communication Timeout Latch 40129 - - - - - - - - - - - 40

Holding Coils (Read/Write) Use the following Modbus command codes to read and write these coils: l 1 - Read Coils l 5 - Write Single Coil l 15 - Write Multiple Coils Add 200 to the register addresses for each device in the stack to access stacked Expansion Modules. For example, if you want to set register 10004 in your 2nd expansion module, the address is 10404. Address Protocol PLC Entity I/O Channel Bits 0 1 DO, SENSOR POWER ON 1 1 1 2 DO, SENSOR POWER ON 2 1 2 3 DO, SENSOR POWER ON 3 1 3 4 DO, SENSOR POWER ON 4 1 8 9 DO, SENSOR POWER ON 9 1 9 10 DO, SENSOR POWER ON 10 1 10 11 DO, SENSOR POWER ON 11 1 11 12 DO, SENSOR POWER ON 12 1 24 25 APPLY DEFAULT DO, AO, SENSOR POWER 1 1 25 26 APPLY DEFAULT DO, AO, SENSOR POWER 2 1 26 27 APPLY DEFAULT DO, AO, SENSOR POWER 3 1 27 28 APPLY DEFAULT DO, AO, SENSOR POWER 4 1 32 33 APPLY DEFAULT DO, AO, SENSOR POWER 9 1 33 34 APPLY DEFAULT DO, AO, SENSOR POWER 10 1 34 35 APPLY DEFAULT DO, AO, SENSOR POWER 11 1 35 36 APPLY DEFAULT DO, AO, SENSOR POWER 12 1 48 49 DEFAULT DO, SENSOR POWER STATE 1 1 49 50 DEFAULT DO, SENSOR POWER STATE 2 1 50 51 DEFAULT DO, SENSOR POWER STATE 3 1 51 52 DEFAULT DO, SENSOR POWER STATE 4 1 56 57 DEFAULT DO, SENSOR POWER STATE 9 1 57 58 DEFAULT DO, SENSOR POWER STATE 10 1 58 59 DEFAULT DO, SENSOR POWER STATE 11 1 59 60 DEFAULT DO, SENSOR POWER STATE 12 1 72 73 DI COUNTER CLEAR 1 1 41

LUM0017AB Rev A Address Protocol PLC Entity I/O Channel Bits 73 74 DI COUNTER CLEAR 2 1 74 75 DI COUNTER CLEAR 3 1 75 76 DI COUNTER CLEAR 4 1 76 77 DI COUNTER CLEAR 5 1 77 78 DI COUNTER CLEAR 6 1 78 79 DI COUNTER CLEAR 7 1 79 80 DI COUNTER CLEAR 8 1 80 81 DI COUNTER CLEAR 9 1 81 82 DI COUNTER CLEAR 10 1 82 83 DI COUNTER CLEAR 11 1 83 84 DI COUNTER CLEAR 12 1 92 93 HIGH-SPEED DI COUNTER ON ISOLATED 5, 9 1 93 94 HIGH-SPEED DI COUNTER ON ISOLATED 6, 10 1 94 95 HIGH-SPEED DI COUNTER ON ISOLATED 7, 11 1 95 96 HIGH-SPEED DI COUNTER ON ISOLATED 8, 12 1 96 97 DI COUNTER FALLING EDGE INCREMENT 1 1 97 98 DI COUNTER FALLING EDGE INCREMENT 2 1 98 99 DI COUNTER FALLING EDGE INCREMENT 3 1 99 100 DI COUNTER FALLING EDGE INCREMENT 4 1 100 101 DI COUNTER FALLING EDGE INCREMENT 5 1 101 102 DI COUNTER FALLING EDGE INCREMENT 6 1 102 103 DI COUNTER FALLING EDGE INCREMENT 7 1 103 104 DI COUNTER FALLING EDGE INCREMENT 8 1 104 105 DI COUNTER FALLING EDGE INCREMENT 9 1 105 106 DI COUNTER FALLING EDGE INCREMENT 10 1 106 107 DI COUNTER FALLING EDGE INCREMENT 11 1 107 108 DI COUNTER FALLING EDGE INCREMENT 12 1 112 113 AI SIGNED INTEGER RESULT 1 1 113 114 AI SIGNED INTEGER RESULT 2 1 114 115 AI SIGNED INTEGER RESULT 3 1 115 116 AI SIGNED INTEGER RESULT 4 1 116 117 AI SIGNED INTEGER RESULT 5 1 117 118 AI SIGNED INTEGER RESULT 6 1 118 119 AI SIGNED INTEGER RESULT 7 1 42

Address Protocol PLC Entity I/O Channel Bits 119 120 AI SIGNED INTEGER RESULT 8 1 120 121 AI, AO CURRENT, VOLTAGE MODE 1 1 121 122 AI, AO CURRENT, VOLTAGE MODE 2 1 122 123 AI, AO CURRENT, VOLTAGE MODE 3 1 123 124 AI, AO CURRENT, VOLTAGE MODE 4 1 124 125 AI, AO CURRENT, VOLTAGE MODE 5 1 125 126 AI, AO CURRENT, VOLTAGE MODE 6 1 126 127 AI, AO CURRENT, VOLTAGE MODE 7 1 127 128 AI, AO CURRENT, VOLTAGE MODE 8 1 136 137 DI COUNTER LATCH 1 1 137 138 DI COUNTER LATCH 2 1 138 139 DI COUNTER LATCH 3 1 139 140 DI COUNTER LATCH 4 1 140 141 DI COUNTER LATCH 5 1 141 142 DI COUNTER LATCH 6 1 142 143 DI COUNTER LATCH 7 1 143 144 DI COUNTER LATCH 8 1 144 145 DI COUNTER LATCH 9 1 145 146 DI COUNTER LATCH 10 1 146 147 DI COUNTER LATCH 11 1 147 148 DI COUNTER LATCH 12 1 152 153 PULSE COUNTER DEBOUNCE 1 1 153 154 PULSE COUNTER DEBOUNCE 2 1 154 155 PULSE COUNTER DEBOUNCE 3 1 155 156 PULSE COUNTER DEBOUNCE 4 1 156 157 PULSE COUNTER DEBOUNCE 5 1 157 158 PULSE COUNTER DEBOUNCE 6 1 158 159 PULSE COUNTER DEBOUNCE 7 1 159 160 PULSE COUNTER DEBOUNCE 8 1 160 161 PULSE COUNTER DEBOUNCE 9 1 161 162 PULSE COUNTER DEBOUNCE 10 1 162 163 PULSE COUNTER DEBOUNCE 11 1 163 164 PULSE COUNTER DEBOUNCE 12 1 43

LUM0017AB Rev A Discrete Inputs (Read-Only) Use the following Modbus command codes to read these discrete inputs: l 2: Read Discrete Inputs Add 200 to the register addresses for each device in the stack to access stacked Expansion Modules. For example, if you want to set register 10004 in your 2nd expansion module, the address is 10404. Address Protocol PLC Entity I/O Channel Bits 10000 10001 DI STATE 1 1 10001 10002 DI STATE 2 1 10002 10003 DI STATE 3 1 10003 10004 DI STATE 4 1 10004 10005 DI STATE 5 1 10005 10006 DI STATE 6 1 10006 10007 DI STATE 7 1 10007 10008 DI STATE 8 1 10008 10009 DI STATE 9 1 10009 10010 DI STATE 10 1 10010 10011 DI STATE 11 1 10011 10012 DI STATE 12 1 10024 10025 CIRCUITRY PROTECTION ACTIVE 1 1 10025 10026 CIRCUITRY PROTECTION ACTIVE 2 1 10026 10027 CIRCUITRY PROTECTION ACTIVE 3 1 10027 10028 CIRCUITRY PROTECTION ACTIVE 4 1 10028 10029 CIRCUITRY PROTECTION ACTIVE 5 1 10029 10030 CIRCUITRY PROTECTION ACTIVE 6 1 10030 10031 CIRCUITRY PROTECTION ACTIVE 7 1 10031 10032 CIRCUITRY PROTECTION ACTIVE 8 1 10032 10033 CIRCUITRY PROTECTION ACTIVE 9 1 10033 10034 CIRCUITRY PROTECTION ACTIVE 10 1 10034 10035 CIRCUITRY PROTECTION ACTIVE 11 1 10035 10036 CIRCUITRY PROTECTION ACTIVE 12 1 44

Input Registers (Read-Only) Use the following Modbus command codes to read these registers: l 4 - Read Input Registers Add 200 to the register addresses for each device in the stack to access stacked Expansion Modules. For example, if you want to set register 10004 in your 2nd expansion module, the address is 10404. Address Protocol PLC Entity I/O Channel Bits 30000/30001 30001/30002 AI INTEGER RESULT 1 32 30002/30003 30003/30004 AI INTEGER RESULT 2 32 30004/30005 30005/30006 AI INTEGER RESULT 3 32 30006/30007 30007/30008 AI INTEGER RESULT 4 32 30008/30009 30009/30010 AI INTEGER RESULT 5 32 30010/30011 30011/30012 AI INTEGER RESULT 6 32 30012/30013 30013/30014 AI INTEGER RESULT 7 32 30014/30015 30015/30016 AI INTEGER RESULT 8 32 30032/30033 30033/30034 AI FLOATING POINT RESULT 1 32 30034/30035 30035/30036 AI FLOATING POINT RESULT 2 32 30036/30037 30037/30038 AI FLOATING POINT RESULT 3 32 30038/30039 30039/30040 AI FLOATING POINT RESULT 4 32 30040/30041 30041/30042 AI FLOATING POINT RESULT 5 32 30042/30043 30043/30044 AI FLOATING POINT RESULT 6 32 30044/30045 30045/30046 AI FLOATING POINT RESULT 7 32 30046/30047 30047/30048 AI FLOATING POINT RESULT 8 32 30064/30065 30065/30066 DI COUNTER 1 32 30066/30067 30067/30068 DI COUNTER 2 32 30068/30069 30069/30070 DI COUNTER 3 32 30070/30071 30071/30072 DI COUNTER 4 32 30072/30073 30073/30074 DI COUNTER 5 32 30074/30075 30075/30076 DI COUNTER 6 32 30076/30077 30077/30078 DI COUNTER 7 32 30078/30079 30079/30080 DI COUNTER 8 32 30080/30081 30081/30082 DI COUNTER 9 32 30082/30083 30083/30084 DI COUNTER 10 32 30084/30085 30085/30086 DI COUNTER 11 32 45

LUM0017AB Rev A Address Protocol PLC Entity I/O Channel Bits 30086/30087 30087/30088 DI COUNTER 12 32 30096 30097 MODBUS REQUEST COUNTER - 16 30112 30113 DO CURRENT 1 16 30113 30114 DO CURRENT 2 16 30114 30115 DO CURRENT 3 16 30115 30116 DO CURRENT 4 16 30116 30117 DO CURRENT 5 16 30117 30118 DO CURRENT 6 16 30118 30119 DO CURRENT 7 16 30119 30120 DO CURRENT 8 16 30152 30153 DEVICE TEMPERATURE - 16 30153 30154 VBATT VOLTAGE - 16 46

Holding Registers (Read/Write) Use the following Modbus command codes to read and write these registers: l 3 - Read Holding Registers l 6 - Write Single Register l 16 - Write Multiple Registers Add 200 to the register addresses for each device in the stack to access stacked Expansion Modules. For example, if you want to set register 10004 in your 2nd expansion module, the address is 10404. Address Protocol PLC Entity I/O Channel Bits 40000 40001 AO COMMAND 1 16 40001 40002 AO COMMAND 2 16 40002 40003 AO COMMAND 3 16 40003 40004 AO COMMAND 4 16 40008 40009 DEFAULT AO COMMAND 1 16 40009 40010 DEFAULT AO COMMAND 2 16 40010 40011 DEFAULT AO COMMAND 3 16 40011 40012 DEFAULT AO COMMAND 4 16 40016 40017 CHANNEL MODE 1 16 40017 40018 CHANNEL MODE 2 16 40018 40019 CHANNEL MODE 3 16 40019 40020 CHANNEL MODE 4 16 40020 40021 CHANNEL MODE 5 16 40021 40022 CHANNEL MODE 6 16 40022 40023 CHANNEL MODE 7 16 40023 40024 CHANNEL MODE 8 16 40024 40025 CHANNEL MODE 9 16 40025 40026 CHANNEL MODE 10 16 40026 40027 CHANNEL MODE 11 16 40027 40028 CHANNEL MODE 12 16 40040 40041 AI FILTER SETTING 1 16 40041 40042 AI FILTER SETTING 2 16 40042 40043 AI FILTER SETTING 3 16 40043 40044 AI FILTER SETTING 4 16 40044 40045 AI FILTER SETTING 5 16 47

LUM0017AB Rev A Address Protocol PLC Entity I/O Channel Bits 40045 40046 AI FILTER SETTING 6 16 40046 40047 AI FILTER SETTING 7 16 40047 40048 AI FILTER SETTING 8 16 40056 40057 RESISTOR PULL SETTING 1 16 40057 40058 RESISTOR PULL SETTING 2 16 40058 40059 RESISTOR PULL SETTING 3 16 40059 40060 RESISTOR PULL SETTING 4 16 40060 40061 RESISTOR PULL SETTING 5 16 40061 40062 RESISTOR PULL SETTING 6 16 40062 40063 RESISTOR PULL SETTING 7 16 40063 40064 RESISTOR PULL SETTING 8 16 40072 40073 AO RESOLUTION 1 16 40073 40074 AO RESOLUTION 2 16 40074 40075 AO RESOLUTION 3 16 40075 40076 AO RESOLUTION 4 16 40080 40081 DO MONOSTABLE TIMEOUT 1 16 40081 40082 DO MONOSTABLE TIMEOUT 2 16 40082 40083 DO MONOSTABLE TIMEOUT 3 16 40083 40088 DO MONOSTABLE TIMEOUT 4 16 40088 40089 DO MONOSTABLE TIMEOUT 9 16 40089 40090 DO MONOSTABLE TIMEOUT 10 16 40090 40091 DO MONOSTABLE TIMEOUT 11 16 40091 40092 DO MONOSTABLE TIMEOUT 12 16 40096 40097 AI ZERO VOLTAGE 1 16 40097 40098 AI ZERO VOLTAGE 2 16 40098 40099 AI ZERO VOLTAGE 3 16 40099 40100 AI ZERO VOLTAGE 4 16 40100 40101 AI ZERO VOLTAGE 5 16 40101 40102 AI ZERO VOLTAGE 6 16 40102 40103 AI ZERO VOLTAGE 7 16 40103 40104 AI ZERO VOLTAGE 8 16 40104 40105 AI VOLTAGE SPAN 1 16 40105 40106 AI VOLTAGE SPAN 2 16 40106 40107 AI VOLTAGE SPAN 3 16 48

Address Protocol PLC Entity I/O Channel Bits 40107 40108 AI VOLTAGE SPAN 4 16 40108 40109 AI VOLTAGE SPAN 5 16 40109 40110 AI VOLTAGE SPAN 6 16 40110 40111 AI VOLTAGE SPAN 7 16 40111 40112 AI VOLTAGE SPAN 8 16 40112 40113 AI, AO ZERO CURRENT 1 16 40113 40114 AI, AO ZERO CURRENT 2 16 40114 40115 AI, AO ZERO CURRENT 3 16 40115 40116 AI, AO ZERO CURRENT 4 16 40116 40117 AI, AO ZERO CURRENT 5 16 40117 40118 AI, AO ZERO CURRENT 6 16 40118 40119 AI, AO ZERO CURRENT 7 16 40119 40120 AI, AO ZERO CURRENT 8 16 40120 40121 AI, AO CURRENT SPAN 1 16 40121 40122 AI, AO CURRENT SPAN 2 16 40122 40123 AI, AO CURRENT SPAN 3 16 40123 40124 AI, AO CURRENT SPAN 4 16 40124 40125 AI, AO CURRENT SPAN 5 16 40125 40126 AI, AO CURRENT SPAN 6 16 40126 40127 AI, AO CURRENT SPAN 7 16 40127 40128 AI, AO CURRENT SPAN 8 16 40128 40129 COMM CONNECTION - 16 40129 40130 COMM TIMEOUT LATCH - 16 40130 40131 COMM PORT BAUD RATE - 16 40131 40132 COMM PORT PARITY - 16 40132 40133 COM PORT STOP BITS - 16 40133 40134 MODBUS MIN TRANSMIT INTER-MSG INTERVAL - 16 40134 40135 RS485 TURN ON DELAY - 16 40135 40136 RS485 TURN OFF DELAY - 16 49

LUM0017AB Rev A Modbus Register Descriptions This section describes the functionality of each register in detail. The register addresses are referenced in protocol addressing (Base 0). For PLC addressing (Base 1), add 1 to each register address listed. Important: Modbus register readings are accurate 10 seconds after powering on the device. Add 200 to the register addresses for each device in the stack to access stacked Expansion Modules. For example, if you want to set register 10004 in your 2nd expansion module, the address is 10404. Holding Coils (Read/Write) 0 to 11: DO, Sensor Power ON Upon power up, this register takes the state of Default DO, Sensor Power State if the Apply Default DO, AO, Sensor Power register is set to (1) ON. l Universal Channel as Digital Output - When a universal channel is configured as Digital Output and this coil is set to (1) ON, the transistor turns on and sinks current to ground. When this coil is set to (0) OFF, the transistor turns off and the output remains floating, unless the internal pull-up or pull-down resistor is enabled. For more information about the Resistor Pull Setting, see the register description on page 54. l Universal Channel as Sensor Power - When a universal channel is configured as Sensor Power and this coil is set to (1) ON, then VBATT is applied to this channel through protection circuitry. When this coil is set to (0) OFF, then no power is applied to the channel. If Sensor Power should be applied on power up, then registers 24 to 35: Apply Default DO, AO, Sensor Power and 48 to 59: Default DO, Sensor Power State must be set to ON (1) for the appropriate channel. l Isolated Channel as Digital Output - When an isolated channel is configured as Digital Output and this coil is set to (1) ON, the relay closes and the terminals are shorted together. When this coil is set to (0) OFF, the relay opens and the terminals for the channel are left floating. 24 to 35: Apply Default DO, AO, Sensor Power This register is used upon device power up and upon communication timeout. If this register is set to (1) ON, upon power up, channels configured as Digital Output, Analog Output, and Sensor Power output their default values. If this register is set to (0) OFF, then factory default values are applied upon power up. Every device has a timer that is reset when it receives a Modbus command or query. If the device does not receive a Modbus command or query for the time set in the Default Delay parameter in the Stack Settings tab in Tool Suite, then a communication timeout occurs. If a communication timeout occurs and this register is set to (1) ON, the channels configured as Digital Output, Analog Output, or Sensor Power changes outputs to the default settings. If this register is set to (0) OFF, then the channel outputs do not change. 50

48 to 59: Default DO, Sensor Power State The default state for channels configured as Digital Output and Sensor Power. For this setting to apply, register 24 to 35: Apply Default DO, AO, Sensor Power register must be set to (1) ON for the channel. 72 to 83: DI Counter Clear This register clears the Digital Input counters in one of two ways: l Writing 1 to this register forces the counter to 0. This method forces the count to 0 even if pulses have arrived since the last counter read. l Writing 0 clears the register in a way called critical counting. Critical counting is a function that keeps track of all the pulses that have been reported. By clearing this register with critical counting, then the counter is set to the number of pulses that have arrived since the last counter read. In this way, you can keep track of each pulse that arrives. 92 to 95: High–Speed DI Counter on Isolated There are four high-speed Digital Input counters available that support counting up to 10 kHz. Use this register to select which channel to use as high-speed counters. If a channel is not assigned to high-speed counting it supports standard speed counting. Standard-speed counters support 100 Hz pulses, or 10 Hz pulses with de- bounce. l Setting coil 92 to (1) ON sets channel 9 to high-speed and channel 5 to standard speed. Setting to (0) OFF sets channel 9 to standard-speed and channel 5 to high-speed. l Setting coil 93 to (1) ON sets channel 10 to high-speed and channel 6 to standard speed. Setting to (0) OFF sets channel 10 to standard-speed and channel 6 to high-speed. l Setting coil 94 to (1) ON sets channel 11 to high-speed and channel 7 to standard speed. Setting to (0) OFF sets channel 11 to standard-speed and channel 7 to high-speed. l Setting coil 95 to (1) ON sets channel 12 to high-speed and channel 8 to standard speed. Setting to (0) OFF sets channel 12 to standard-speed and channel 8 to high-speed. 96 to 106: DI Counter Falling Edge Increment When this coil is (1) ON, the counter for a Digital Input is incremented when the input goes from 1 to 0 (a falling edge). When this coil is (0) OFF, the counter for a Digital Input is incremented when the input goes from 0 to 1 (on a rising edge). 112 to 119: AI Signed Integer Result When a channel is configured as Analog Input and this coil is (1) ON, the AI Integer Result register is a signed number. A signed number is necessary to report negative input voltages or if the RTU/PLC supports signed results only. When this register is set to (0) OFF, the AI Integer Result register is an unsigned number. The default is (0) OFF. 51

LUM0017AB Rev A 120 to 127: AI, AO Current, Voltage Mode When set to (1) ON, an internal 250 ohm sense resistor is turned on to report 4 to 20 mA inputs. The complete current range is from 0 to 25 mA. Setting this coil to (0) OFF disables the sense resistor and supports reading voltage input. This is needed for 1 to 5 V and 0 to 10 V transmitters. The complete voltage range is from -2.5 to +12.5 V. 136 to 147: DI Counter Latch This register is set to ON internally when the DI Counter register is incremented. This is useful for systems that poll the Digital Input states at slower speeds than the duration of Digital Input signals. Write 0 to this register to clear the latch. 152 to 163: Pulse Counter De-Bounce If set to (0) OFF, there is no software processing and noise can be treated as signal (false counts may be encountered).  If set to (1) ON, the software takes multiple samples before deciding that an edge is a real edge not noise. The price is drastic reduction in max frequency that can be counted from 800 Hz to 10 Hz. Discrete Inputs (Read-Only) 10000 to 10011: DI State This input reports the present state of the channel configured as Digital Input. 10024 to 10035: Circuitry Protection Active This input reports the status of circuitry protection on the channel. Circuitry protection is used in Digital Output, Analog Input in current mode, and Sensor Power modes. When this coil is (1) ON, an overload condition has been detected and the channel function is disabled for a short time. The channel is retried at 10 second intervals to test whether the overload condition has been removed. When the channel is within its limits, this register is (0) OFF. Input Registers (Read-Only) 30000 to 30016: AI Integer Result This register contains the most recent Analog Input conversion result reported as an integer. The scale of the AI Integer Result depends on the settings in the AI Voltage Span and AI AO Current Span registers. The Long Integer Word Order setting on the Serial Base determines the position of the MSW and LSW in the AI Integer Result registers for all devices in the stack. Regular word order places the MSW at the lower address and the LSW at the higher address (ex: MSW = 30000, LSW = 30001). Inverted word order places the LSW at the lower address and the MSW at the higher address (ex: LSW = 30000, MSW = 30001). Long Integer Word Order helps connections with controllers that only accept one word order or another. 52

Note: When a Radio Base is used then the Long Integer Word Order is forced to regular. The AI Integer Result Justification setting on the Serial Base determines the position of the AI Result Integer inside the 32-bit registers. Left justification places the most significant 16 bits of the AI Result in the MSW. Left justification is commonly used to access only the most significant 16 bits. With left justification you can access only 1 register and obtain a 16-bit integer. Right justification places the least significant 16 bits of the AI Result in the Least Significant Word (LSW). Right justification is commonly used to access the complete 20-bit result. With left justification you generally read 2 registers and obtain a 32-bit integer containing a 20-bit AI Result. When a Radio Base is used, then the AI Integer Result Justification is forced to left. 30032 to 30047: AI Result, Floating Point This register contains the most recent Analog Input conversion result reported as a floating point number. The decimal number represents the actual voltage in V or current in mA. The setting in registers 121 to 128: AI Current Mode determines whether the channel is used in current or voltage mode. The Floating Point Word Order setting on the Serial Base determines the position of the MSW and LSW in the AI Result, Floating Point registers for all devices in the stack. Regular word order places the MSW at the lower address and the LSW at the higher address (ex: MSW = 30032, LSW = 30033). Inverted word order places the LSW at the lower address and the MSW at the higher address (ex: LSW = 30032, MSW = 30033). When a Radio Base is used then the Long Integer Word Order is forced to regular. This setting allows controllers that require reverse register order to access 32-bit floating point registers without additional programming. 30064 to 30087: DI Counter The DI Counter reports the number of pulse edges seen on a Digital Input. The pulse edge (rising edge or falling edge) that increments the DI Counter is set by coils 96 to 107: DI Counter Falling Edge Increment. You can read both the MSW and LSW for a 32-bit unsigned integer. Alternatively, you can read the LSW to gain access to a 16-bit unsigned integer result. l The maximum counting rate for de-bounced counters is 10 Hz with a minimum pulse width of 40 ms. l The maximum counting rate for standard-speed counters is 100 Hz with a minimum pulse width of 4 ms. l The maximum counting rate for high-speed counters is 10 kHz with a minimum pulse width of 40 μs. Whether a channel is standard-speed or high-speed is determined by the setting of coils 92 to 95: High- speed DI Counter On Isolated. The Long Integer Word Order setting on the Serial Base applies to these registers. See the AI Integer Result register description on previous page for a description of the Long Integer Word Order setting. 30096: Modbus Request Counter This register is a running total of Modbus requests. Every time a Modbus request is received and processed this register is incremented. This is useful for PLCs and RTUs that do not handle Modbus failures appropriately. If the PLC or RTU reports the same number in this register time after time despite continuous polling attempts, then communication has failed between the PLC and the I/O Expansion device. 53

LUM0017AB Rev A 30112 to 30119: DO Current This register represents the current in milliAmps flowing through Digital Output channels set to (1) ON. It is not meant to accurately measure the current to report an approximate current confirming flow. 30152: Device Temperature The temperature of the device circuit board reported as a signed integer with units of 1° C per Least Significant Bit (lsb). 30153: VBATT The supply voltage to the device as an unsigned integer reported in 1 mV per LSb. This is useful to remotely monitor the battery level. Holding Registers (Read/Write) 40000 to 40003: AO Command The analog value to output when a channel is used as Analog Output. When registers 40072 to 40075: AO Resolution are set to 0 then the scaling factor is 1 μA per bit. When registers 40072 to 40075: AO Resolution are not 0, then the scaling factor is determined by registers 40120 to 40127: AI, AO Current Span. In both cases case, the value in the 40112 to 40119: AI, AO Zero Current register is added to the AO Command register and the sum is the actual current output. However, the output cannot be higher than 22 mA. If the sum of the AI, AO Zero Current register and the AO Command register is greater than 22 mA, the value of the AO Command is capped to reach the maximum output of 22 mA. 40008 to 40011: Default AO Command The value in this register is the AO Command in default conditions. 40016 to 40027: Channel Mode This register sets the channel to be one of the following types: l 0 - Off l 1 - Digital Output l 2 - Digital Input l 3 - Analog Output l 4 - Analog Input l 5 - Sensor Power Important: If you change a channel to a different function, for example, if you change a Universal Channel from Digital Input to Analog Input, wait 2 seconds for reliable readings from the channel. 54

40040 to 40047: AI Filter Setting The filter setting turns on filtering (a moving average) for AI Integer Result and AI Floating Point Result. Use filtering to reduce signal noise by providing a stable reading. Setting this register to 0 disables filtering. Setting this register to values from 1 to 5 increases the filtering/averaging times: l 1 - 10 seconds (0.1 Hz) l 2 - 25 seconds (0.04 Hz) l 3 - 50 seconds (0.02 Hz) l 4 - 100 seconds (0.01 Hz) l 5 - 250 seconds (0.004 Hz) 40056 to 40063: Resistor Pull Setting Setting this coil to 1 connects a 10 kΩ pull-down resistor to ground for use with closed-contact-to-voltage inputs and outputs. Setting this coil to 2 connects a 1 kΩ pull-up resistor to 3 V for closed-contact-to-ground inputs and outputs. Setting this coil to 0 disables both resistors. 40072 to 40075: AO Resolution Use these registers to change the scaling of AO Command. Some PLCs and RTUs support only 16 bits, 14 bits, 12 bits, or signed integers. The AO Command scaling depends on this setting: l 0 - 1 μA per bit l 16-bit resolution l 15-bit resolution (This is the recommended setting for PLCs or RTUs that only support 16-bit signed integers.) l 14-bit resolution l 12-bit resolution 40080 to 40091: DO Monostable Timeout When this register is set to a number other than 0, the mono-stable setting is enabled. Enter the amount of time in milliseconds from 1 to 60000 (1 minute) after which the Digital Output goes to its default state as defined in register 48 to 59: Default DO, Sensor Power State. When this register is set to 0, the Digital Output is bi-stable and the monostable time out is no longer enabled. A bi-stable Digital Output maintains the last state until a command is received that changes the Digital Output state. 40096 to 40103: AI Zero Voltage This register is the voltage that results in the Analog Input reporting 0 in the AI Integer Result register. The scaling factor for this register is 1 mV per bit and the valid range is from 0 to 10000 mV. It is useful for translating offset sensors such as 1 to 5 V transmitters so that their minimum output reports 0 in the AI Integer Result register. It is also useful for adjusting AI readings to provide calibration capabilities. See 40104 to 40111: AI Voltage Span for recommended settings with 1 to 5 V and 0 to 10 V sensors. 55

LUM0017AB Rev A 40104 to 40111: AI Voltage Span This register sets the span and scaling factor for AI Integer Result. This register added to AI Zero Voltage is the voltage that results in full scale in AI Integer Result. For 16-bit readings, full scale is 65535, and for 20-bit readings full scale is 1,048,575. The scaling factor for this register is 1 mV per bit and the valid range is from 0 to 12,500 mV. It is useful for translating sensors such as 1 to 5 V transmitters so their maximum output reports full scale in the AI Integer Result register. Recommended settings for 1 to 5 V sensors: l Set AI Zero Voltage to 1000 (equal to 1 V) l Set AI Voltage Span is 4000 (equal to 4 V = 5 V – 1V) l When reading the full 20-bit result, the scaling factor is 3.8147 mV per LSB l When reading only the most significant 16 bits, the scaling factor is 61.035 mV per LSB Recommended settings for 0 to 10 V sensors: l Set AI Zero Voltage to 0 (equal to 0 V) l Set AI Voltage Span to 10000 (equal to 10 V) l When reading the full 20-bit result in AI Integer Result, the scaling factor is 3.8147 mV per LSB l When reading only the most significant 16 bits in AI Integer Result, the scaling factor is 61.035 mV per LSB For other input ranges or for fine tuning the inputs above: l Set AI Zero Voltage to the minimum input voltage l Set AI Voltage Span to the input span = maximum input voltage - minimum input voltage l When reading the full 20-bit result, the scaling factor is AI Voltage Span / 1048576 l When reading only the most significant 16 bits, the scaling factor is AI Voltage Span / 65536 For backwards compatibility, a setting of 0 forces the AI Voltage Span to 10000 mV. 40112 to 40119: AI, AO Zero Current When the channel is used as an Analog Input this register is the current that results in the Analog Input reporting 0 in the AI Integer Result register. The scaling factor for this register is 1 μA per bit and the valid range is from 0 to 25000 μA. This register is useful for translating offset sensors such as 4 to 20 mA transmitters so that their minimum output reports 0 in the AI Integer Result register. It is also useful for adjusting Analog Input readings to provide calibration capabilities. When the channel is used as an Analog Output this register is the current that is output when the AO Command register is set to 0. The scaling factor for this register is 1 μA per bit and the valid range is from 0 to 25000 μA. This register is useful for outputting 4 to 20 mA signals so that their minimum output is 4 mA when the AO Command register is 0. Ses the description for 40120 to 40127: AI, AO Current Span below for recommended settings with 4 to 20 mA sensors. 56

40120 to 40127: AI, AO Current Span The scaling factor for this register is 1 μA per bit and the valid range is from 0 to 25,000 μA. This register is useful for translating sensors such as 4 to 20 mA transmitters so that their maximum output reports full scale in the AI Integer Result register. For 16-bit readings full scale is 65535, and for 20-bit readings full scale is 1,048,575. When the channel is used as an Analog Input this register sets the span and scaling factor for the AI Integer Result register. This register added to AI, AO Zero Current is the input current that results in full scale in the AI Integer Result register. Recommended settings for 4 to 20 mA sensor inputs: l Set AI Zero Voltage to 4000 (equal to 4 mA) l Set AI Voltage Span to 16000 (equal to 16 mA = 20 mA – 4 mA) l When reading the full 20-bit result in AI Integer Result, the scaling factor is 15.259 nA per LSB l When reading only the most significant 16 bits in AI Integer Result, the scaling factor is 244.14 nA per LSB For all other input ranges or for fine tuning the inputs above: l Set AI Zero Voltage to the minimum input voltage l Set AI Voltage Span to the output span = maximum input current - minimum input voltage l When reading the full 20-bit result in AI Integer Result, the scaling factor is AI Voltage Span / 1048576 l When reading only the most significant 16 bits in AI Integer Result, the scaling factor is AI Voltage Span / 65536 When the channel is used as an Analog Output this register sets the span and scaling factor for the AO Command register. This register added to AI, AO Zero Current is the output current when full scale is entered into AO Command. Recommended settings for 4 to 20 mA outputs: l Set AI, AO Zero Voltage to 4000 (equal to 4 mA) l Set AI, AO Voltage Span is 16000 (equal to 16 mA = 20 mA – 4 mA) l When writing all 16 bits in AO Command, the scaling factor is 244.14 nA per LSB l When writing all 15 bits in AO Command, the scaling factor is 122.07 nA per LSB l When writing all 14 bits in AO Command, the scaling factor is 61.035 nA per LSB l When writing all 12 bits in AO Command, the scaling factor is 15.259 nA per LSB For all other output ranges or for fine-tuning the inputs above: l Set AI, AO Zero Voltage to the minimum output current l Set AI, AO Voltage Span to the output span = maximum input current - minimum input voltage l When writing all 16 bits in AO Command, the scaling factor is AI Voltage Span / 65536 l When writing all 15 bits in AO Command, the scaling factor is AI Voltage Span / 32768 57

LUM0017AB Rev A l When writing all 14 bits in AO Command, the scaling factor is AI Voltage Span / 16384 l When writing all 12 bits in AO Command, the scaling factor is AI Voltage Span / 4096 For backwards compatibility, a setting of 0 forces the AI, AO Current Span to 20000 μA. 40128: Comm Connection The serial port connector type of a Serial Base: RS-232 (0), RS-422 (1), or RS-485 (2). 40129: Comm Timeout Latch In case of communication failure, channels configured as Digital Output, Analog Output, and Sensor Power can be set up to go to default states. This register serves to inform (after communication is restored) that the communication timeout occurred long enough to activate the defaults. This register remains at (1) ONN until set to (0) OFF by Modbus command. Setting to 0 clears the latch. 40130: Comm Port Baud Rate The baud rate of the serial port. The default setting is (0) 19200. Options include the following: l (0) 19200 l (1) 150 l (2) 300 l (3) 600 l (4) 1200 l (5) 2400 l (6) 4800 l (7) 9600 l (8) 14400 l (9) 19200 l (10) 28800 l (11) 38400 l (12) 57600 l (13) 76800 l (14) 115200 l (15) 153600 l (16) 230400 40131: Comm Port Parity The parity of the port connected to the device. Options include the following: l (0) None l (1) Even l (2) Odd 40132: Comm Port Stop Bits There currently is only one selection for Com Port Parity: (1) Even. 40133: Modbus Min Transmit Inter-Message Interval The interval cannot be shorter than 2 ms; regardless of a setting in this register, the interval is automatically adjusted to be shorter than 3.5 character lengths. 58

On the receive side, the interval between messages must be at least 2 ms. If the interval is less than 0.4 ms, received characters will be processed as one message. If the interval is between 0.4 and 2 ms, the Modbus message processing will not be reliable. 40134: RS-485 Turn-On Delay If the Comm Connection register is set to (2) RS-485, set the number of milliseconds (ms) between the RS- 485 transmitter turning on and the character transmission start. Set the delay between 0 and 10 ms. The default setting is 1 ms. 40135: RS-485 Turn-Off Delay If the Comm Connection register is set to (2) RS-485, set the number of milliseconds (ms) between the RS- 485 character transmission end and the transmitter turning off. Set the delay between 0 and 10 ms. The default setting is 1 ms. 59

LUM0017AB Rev A Modbus Timing Communication from the Base Modules to Expansion Modules occurs on a bus architecture. The bus architecture provides the fastest communication times for the entire stack because all Expansion Modules see the message from the Base at the same time. There is no difference in messaging times or execution times whether there is one Expansion Module in a stack or fifteen. The Modbus command response time is the time it takes a device to interpret and respond to a Modbus command or query. For example, polling the value of a 4 to 20 mA input. Modbus Command Response Time by Device and Command Type Serial Base Expansion Module Expansion Module Expansion Module Stack ID 0 1 2 15 Units Command 1: Read Coils 1 coil 4 11 11 11 ms 160 coils 6 14 14 14 ms Command 2: Read Discrete Inputs 1 discrete input 4 11 11 11 ms 80 discrete inputs 6 12 12 12 ms Command 3: Read Holding Registers 1 holding register 4 11 11 11 ms 125 holding registers 18 52 52 52 ms Command 4: Read Input Registers 1 input register 4 11 11 11 ms 125 input registers 18 52 52 52 ms Command 5: Write Single Coil 4 11 11 11 ms Command 6: Write Single Register 4 11 11 11 ms Command 15: Write Multiple Coils 2 coils 4 11 11 11 ms 120 coils 6 14 14 14 ms Command 16: Write Multiple Registers 2 holding registers 4 11 11 11 ms 123 holding registers 11 43 43 43 ms The output execution delay time is the time it takes a device to execute a command (for example, change a Digital Output from low to high). The time is referenced from the moment the complete Modbus command arrives at the data port. 60

Modbus Output Execution Delay Time by Device and I/O Type Serial Base Expansion Module Expansion Module Expansion Module 0 1 2 15 Units Non-Isolated Digital Output Command 5 (writing 1 coil) 3 6 6 6 ms Command 15 (writing 120 coils) 3 8 8 8 ms Isolated Digital Output Command 5 (writing 1 coil) 17 14 14 14 ms Command 15 (writing 120 coils) 18 16 16 16 ms Analog Output Command 6 (writing 1 registers) 3 6 6 6 ms Command 16 (writing 123 registers) 3 33 33 33 ms 61

Chapter 5: Additional I/O Expansion Information This chapter provides the following additional information about Serial Bases and Expansion Modules: l Dimensions l Other physical information about the devices 63

LUM0017AB Rev A Physical Specifications Housing High-impact plastic Mounting Integrated 35 mm DIN rail clip Weight 0.35 lbs Temperature -40° C to 75° C Humidity 0 to 95% non-condensing 66

Appendix A: Firmware updates The sections below describe the updates and known limitations in each firmware version for the I/O Serial Bases and Expansion Modules, as of this document's release. The most recent version is listed first. The latest firmware versions are available on the FreeWave Web site at www.freewave.com. You can also view the latest firmware available for most models in Tool Suite. Version 2.2.0 Release Date: January 2012 Additions and Changes: l The 40000 to 40003: AO Command register cannot exceed the max output current of 22 mA. If the AO Command register is set so the value of that register and the 40112 to 40119: AI, AO Zero Current register together are more than 22 mA, the AO Command current is capped so the total current does not exceed 22 mA. l Corrected power LED blinking issue. l Corrected reporting of a signed analog input value. l Fixed a pulse counter bug. Known Limitations and Work Arounds: l Channels 11 and 12 in the IOE-4440 and IOEX-4440 models do not function as high-speed counters. Version 2.1.0 Release Date: August 2011 Additions and Changes: 67

LUM0017AB Rev A l Added support for 153.6 and 230.4 kbaud data rates. Removed 110 kbaud support. l Increased max pulse counting frequency to 800 Hz with 60/40 duty cycle. l Added software pulse counter de-bouncing. With de-bouncing, the maximum counting frequency is 10 Hz; without de-bouncing the maximum counting frequency, as stated above. l You can now set the pull-up resistor and pull-down resisters for a Digital Output using the same register and hardware as the Digital Input. l Reduced max digital output current from 25 mA to 22 mA. 68

electrical resistance. μ Symbol notation for micro (one millionth). For example, μs is the abbreviation for microseconds. ∆ Symbol notation for delta, the difference between to measurements. C channel A channel is a single input, output, or Sensor Power connection. All I/O Serial Bases, Radio Bases, and Expansion devices have 12 channels. All models feature four universally configurable channels, four input-only channels, and four electrically isolated channels. D Discrete Input Inputs that require an on/off signal. E Expansion Module Expansion Modules can be added to a Radio Base or Serial Base device to expand the number of I/O channels available. Expansion Modules do not communicate on their own. They require a Radio Base or Serial Base. H Holding Register Holdigy registers hold data that will later be executed by the processor. K Kbps kilo bits per second; 1000 bits per second. For example, 154 kbps. L LED light emitting diode. Located on the side of the Serial Base and Expansion Modules, the LEDs represent power, inbound communication, and outbound communication. For more information, see "I/O Device LEDs" on page 5. LSB least significant bit. The bit position that determines whether a number is even or odd. M mA milliAmps. A milliAmp is one thousandth of an amp. For example 100 mA. megabit One million bits. microsecond One millionth of a second. Abbreviated as μs. For example 5 μs equals 5 millionths of a second. Mbps mega bits per second; 1,000,000 bits per second. ms milliseconds; one thousandth of a second. For example 5 ms. I/O Expansion LUM0017AB Rev A 69

programmable logic controllers (PLCs). P PLC programmable logic controller. A digital computer used to automate electro- mechanical processes. S signed integer A positive or negative whole number. R Radio Base A Radio Base provides expandable, wireless I/O. The FGR2-IO-IOE radio is the only Radio Base device available. register A single parameter in the Modbus interface for this product. For example, AI Filter Setting. Each register available for the Serial Bases and Expansion Modules is described in the"Modbus Register Map" on page 39. RTU remote terminal unit. A microprocessor- controlled device that integrates different objects. S Serial Base A Serial Base provides expandable, wired I/O to any device with RS232, RS422, and RS484 data communication interfaces. SCADA supervisory control and data acquisition. Computer systems that monitor and control industrial, infrastructure, or facility-based processes. stack The Serial Base or Radio base and all Expansion modules attached to it. Up to 15 Expansion Modules can be included in a stack. T Tool Suite A program that provides easy, reliable, and repeatable programming ad monitoring for FreeWave wireless data transceivers, I/O Serial Bases, and Expansion Modules. Tool Suite is available at no cost to you and is available for download from www.freewave.com. LUM0017AB Rev A 70 Glossary

universal channels 24 B Base Modules about 2 Radio 2 reading in Tool Suite 9 Serial 2 wired 2 wireless 2 C channels defining in Tool Suite 10 input-only 27 IOE-4404 and IOEX-4404 16 IOE-4422 and IOEX-4422 16 IOE-4440 and IOEX-4440 15 isolated 33 signal ground 16 universal 17 connectors Expansion Module about 4 data 5 diagnostics 5 Serial Base 485 3 about 2 data 3 diagnostics 4 power 3 current consumption 7 customer support, contacting x D data connectors Expansion Module 5 Serial Base 3 diagnostics connector Expansion Module 5 Serial Base 4 Digital Inputs input-only channels 27 isolated channels 35 universal channels 17 Digital Outputs isolated channels 33 universal channels 19 E Expansion Modules about 2 current consumption 7 data connector 5 diagnostics connector 5 dimensions 65 LED reference 6 power 7 reading in Tool Suite 9 upgrading firmware 12 F firmware, upgrading 12 FreeWave, contacting x H holding coils (read/write) 41, 50 I/O Expansion LUM0017AB Rev A 71

47, 54 housing 66 humidity 66 I IC notifications iv input-only channels about 27 Analog Inputs 29 defining in Tool Suite 10 Digital Inputs 27 input coils (read-only) 44, 52 input registers (read-only) 45, 52 IOE-4404 and IOEX-4404, channels 16 IOE-4422 and IOEX-4422, channels 16 IOE-4440 and IOEX-4440, channels 15 isolated channels about 33 defining inTool Suite 10 Digital Inputs 35 Digital Outputs 33 L LEDs about 5 Expansion Module 6 Serial Base 6 legal notifications IC iv M Modbus register map about 39 common registers 40 holding coils (read/write) 41, 50 holding registers (read/write) 47, 54 input coils (read-only) 44, 52 input registers (read-only) 45, 52 quick reference 40 readings on powerup 39 Modbus timing 60 mounting 66 N notational conventions ix P physical specifications 66 pin-outs Expansion Module data connector 5, 7 Serial Base 485 3 data connector 3 power 3 power Expansion Modules 7 Serial Bases 7 power connector, Serial Base 3 power consumption 7 power supply voltage limits 7 R Radio Base about 2 register map about 39 common registers 40 holding coils (read/write) 41, 50 holding registers (read/write) 47, 54 input coils 44 input registers (read-only) 45, 52 inputcoils (read-only) 52 quick reference 40 readings on powerup 39 LUM0017AB Rev A 72 Index

26 Serial Bases 2 485 connector 3 current consumption 7 data connector 3 diagnostics connector 4 dimensions 64 LED reference 6 power 7 power connector 3 reading in Tool Suite 9 stack settings 12 upgrading firmware 12 Setup mode 10 stack settings definitions 13 programming 12 T technical support, contacting x temperature 66 Tool Suite downloading 9 firmware upgrades 12 reading devices 9 stack settings, programming 12 U universal channels about 17 Analog Inputs 21 Analog Outputs 24 defining inTool Suite 10 Digital Inputs 17 Digital Outputs 19 Sensor Power 26 W warranty ii weight 66 I/O Expansion LUM0017AB Rev A 73