Lindab UltraLink FTMU Technical Information

2021-11-02 Lindab reserves the right to make changes without prior notice 2021-11-02 UltraLink® Monitor FTMU lindab | technical information Introduction UltraLink® FTMU is a highly accurate flow monitor without any obstacles in the airstream that creates pressure drop. It mea- sures the flow with an angled ultrasonic beam which can be calculated and compensated to a very high accuracy over the whole flow range. The method is very stable over time due to that it is not sensitive to dirt and the design minimizes the dust accumulation on the flow sensors. An increased focus on energy saving has led to ventilation systems requiring low minimum flows. The low flows are a pro- blem since they are very difficult to measure, which makes it difficult to control the ventilation system. The new technology of UltraLink® makes it possible to measure lower air flows compared to today’s products while maintai- ning measurement accuracy. This offers great advantages for the user in terms of comfort and savings in energy consump- tion, which is of great interest. Content Introduction ....................................................................................................2 Overview (Application, Design, Display unit) .................................................3 Mounting ........................................................................................................4 Electrical installation ......................................................................................7 Commissioning ............................................................................................ 11 Mobile app .............................................................................................. 11 Ultra BT™ Room Control System (Installation of wireless sensors) ...... 11 Display .................................................................................................... 12 Parameter structure ................................................................................ 12 Status light .............................................................................................. 12 Connecting flow measurement for installation close to disturbance ..... 13 ID-numbers ............................................................................................. 13 PIN code ................................................................................................. 13 Maintenance ........................................................................................... 13 Configuration menu structure ................................................................. 13 Digital communication settings .................................................................... 14 Analog communication settings .................................................................. 14 Troubleshooting ........................................................................................... 15 Technical data .............................................................................................. 16 Appendix A – Modbus register .................................................................... 17 © 11.2021 Lindab Ventilation. All forms of reproduction without written permission are forbidden. is the registered trademark of Lindab AB. Lindab's products, systems, product and product group designations are protected by intellectual property rights (IPR).

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Overview Application The FTMU is suitable for measuring air flow and tempe- rature. Communication is established via analog or digital signal using Modbus. Design The FTMU consists of a sensor body with Lindab Safe gaskets. Two flow sensors are mounted on the sensor body and connected to a display unit. The display unit is mounted on top of a shelf on the sensor body. Note! The flow sensors are placed at a fixed distance to each other and they shall never be removed and not used as handles when turning the sensor body. Display unit QR code Status light Bluetooth® Display parameters Air flow direction Mode button CE-mark IP classification Display unit Transducer Sensor body

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Mounting Please note: • The transducers must never be removed! • Do not use the transducers as handles when you mount the FTMU since this may cause damage! Transducers • Make sure the airflow arrow is pointing in the direction of the airflow. Airflow direction arrow • Rotate the senor body to the correct position according to the chapter “Planning” on the next page. • Position the display so it is visible from a suitable direction. By loosening the screw of the steel strip, the display unit can be rotated. • Mount the FTMU into the air duct system according to the mounting instructions for Lindab Safe. • Never use a FTMU on the outlet side of a duct fan. (Place it on the inlet side or in worst case use a flow conditioner if it must be placed on the outlet side.) Duct fan • Note the ID-number of the FTMU. The ID is the three last numbers of the serial number and can be found: - on the label of the box it was delivered in - on the label on the FTMU itself - in the display after pressing the “MODE” button - in the App when the product is turned on Controller FTCU Ø125 Serial no. 132600052 UltraLink Lindab®

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Planning The longer distance to disturbance, i.e. the longer straight duct before the FTMU, the higher the measurement accuracy will be. However this is not the only factor which affects the accuracy of the measurement. The rotation of the FTMU and hence the positioning of the first flow sensor has an impact on the uncertainty of the measurement. It is not recommended to mount the FTMU so that the first flow sensor (*) is placed on an outer radius of a fitting. For example: in the case of the bend in the table below, by rotating the FTMU to position the first flow sensor according to the first picture (with the first flow sensor on the inner radius of the bend), the FTMU can be placed at the distance of two duct diameters from the disturbance to achieve 5 % uncertainty. Positioning the FTMU according to the second picture (with the first sensor on the outer radius of the bend), the FTMU must be mounted five duct diameters from the disturbance to achieve the same level of uncertainty. Other obstructions in the duct system such as axial fans, silencer baffels or cleaning hatches etc. are not allowed before the UltraLink (in the direction of the flow). If a cleaning hatch is required, it must be placed after the UltraLink (in the direc- tion of the flow). The reason is that these cause turbulences, which can result in errors in flow measurements. Disturbance * Placement of first flow sensor Measurement uncertainty ± % or X l/s depending wich is the greatest of percentage or the absolute value for the specific product size, see table on page 16. a 2-4·Ød >4-5·Ød >5·Ød Bend a Ød * Inner radius (Best position) 5 5 5 Bend a Ød * Outer radius (Not recommended) 20 10 5 Bend a Ød * a Ød * Side 10 5 5

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Disturbance * Placement of first flow sensor Measurement uncertainty ± % or X l/s depending wich is the greatest of percentage or the absolute value for the specific product size, see table on page 16. a 2-4·Ød >4-5·Ød >5·Ød Reducer a Ød * Duct diameter decrease 5 5 5 Reducer a Ød * Duct diameter increase 10 5 5 T-piece a Ød * Inner radius (Best position) 10 5 5 T-piece a Ød * Outer radius (Not recommended) 20 10 5 T-piece a Ød * Side 10 5 5 a Ød *

SCL SDA GND 3V3 14 15 16 13 Lindab reserves the right to make changes without prior notice 2021-11-02 UltraLink® Monitor FTMU lindab | technical information Electrical installation Please note: • You must under no circumstances make any holes or connect anything with screws to the body of the FTMU. • In case electrical installation equipment such as a junction box is needed for installation, the FTES is a Lindab accessory which can be mounted on the FTMU without causing damage to the FTMU. • Never remove the blue electronics box. • Never remove the transducers. Use the premounted cable >> • Connect power and communication cables to the premounted cable. • Check the label on cable for reference to cable colours. • It is important that the cable is as short as pos- sible for optimal Modbus communication. For cable connections there is two options, use the premounted cable or connect directly in the PCB (option A and B): Connect directly on PCB >> • To access the terminals on the circuit board, remove the lid by pushing the two heels on the side of the blue box. • To be able to connect cords to the terminal board the rubber cable grommet on the backside of the display unit must be punctured, preferably using an awl or something pointy to ensure tightness to the environment. Do not remove the blue box to do this! • When the cables have been connected they must be strain relieved. The cables can be attached to the shelf by using cable ties that are attached around cut outs in the shelf. Option A Option B

SCL SDA GND 3V3 14 15 16 13 24V AC/DC { G+ G- Modbus +B -A GND Analog signals { AO1 AO2 AIN { Lindab reserves the right to make changes without prior notice 2021-11-02 UltraLink® Monitor FTMU lindab | technical information Option B: Circuit board screw terminals Connections are made in the terminal board which can be accessed when the lid of the display unit is removed. In the back of the lid there is a picture with a list of the terminals. 1. 24V, power supply (AC G, DC +) * 2. GND, power supply (AC G0, DC -) * 3. +B, connection for Modbus via RS485 4. -A, connection for Modbus via RS485 5. SH, shield 6. GND, ground (system neutral) 7. AO1, analog output 8. AO2, analog output 9. AIN, (not used in this version) 10. MO1, (not used in this version) 11. MO2, (not used in this version) 12. GND, ground (system neutral) 13. SCL, not used 14. SDA, not used 15. GND, ground (system neutral) 16. 3V3, not used (in case of biasing) *) When using AC terminal 1 (G) should have system potential and terminal 2 (G0) should be system neutral. Recommendations for wiring Function Cable type 24 V Supply 2-wire, thickness depending on length and load, max. 1,5 mm² RS485 Modbus communication 2-wire shielded twisted pair, min. 0,1 mm² (LIYCY cable) Using other cables for Modbus signals may result in communication problems. Analog connection When connecting the FTMU using analog signals, it is impor- tant to connect the analog out signals on the FTMU (AO1, AO2) to the analog in terminals on the RTU and the analog in signal (AIN) is connected to the analog out terminal on the RTU. Also make sure to connect the cables to the same analog ground. Option A: Connect to premounted cable Connect the premounted cable in a junction box near the FTMU. Con- nect power and signal cables in the junction box according to the color scheme on the lable on the premounted cable, see picture to the right. When connecting Modbus signal wires, the length of the premounted cable needs to be as short as possible, since these have a negative effect on signal quality. In this case, place junction box as close to the FTMU as possible, then cut the premounted where it is as short as possible for installation. Connection of UltraLink Note! All cables that are not connected must be insulated. 24V Red GND White +B Yellow -A Brown GND Grey AO1 Green AO2 Blue AIN Pink

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Digital connection (Modbus) Connect A on the RTU to -A on the display unit and B to +B. When connecting more than one FTMU in series it is important to keep connecting -A to -A and +B to +B since crossing them will stop Modbus from working. It is recom- mended to use RS485 cables with twisted pairs and shield, do not supply power in the same cable unless the cable is produced for that purpose. When connecting signal ground, attach it to “GND” on the terminal to the right of the terminal for shield (SH) on the PCB. Then attach it to the corresponding terminal in the RTU. Connecting shield The shield in the RS485 cable should be connected to ground at the transformer and then continuously connect to ”SH” on all the UltraLinks that are powered from that transformer. If more than one transformer is used on the bus, the shield is broken at each transformer so ”SH” on every product only has connection to ground at the transformer from which its power is supplied. BA +B -A +B -A +B -A +B -A GND GND GND GND Signal ground Shield ground Biasing The master on the bus must have biasing on -A and +B. This is more or less standard on BMS-controllers, but if communication should be established with a conventional compu- ter using a RS485-USB converter, then it is important to make sure that the converter has a bias circuit. If communication fails and you are uncertain about existance of biasing, you can add biasing resistors in the screw terminal on one of the UltraLinks to see if this is the cause of the com- munication failure. Use 500 - 1000 Ω resistors and connect one resistor from -A to GND and one from +B to the 3V3 terminal. It is also recommendedto add a 120 Ω termination resistor between -A and +B on the last UltraLink on the bus to avoid signal reflections. Repeater If the bus is longer than 300 meters or if there are more than 30 devices, the system might need an RS485 repeater (FDS-R, see picture to the right) to be able to communicate in an efficient way.

0 0,1 0,2 0,3 0,4 0,5 0,20 0,15 0,10 0,05 0 Copper Resistance [ Ω/m ] Lindab reserves the right to make changes without prior notice 2021-11-02 UltraLink® Monitor FTMU lindab | technical information Power supply Transformer sizing The needed size of 24 V AC transformer(s) can be defined by adding up the dimensioning power consumption [VA] of all the components. The transformer power must exceed this. Use only safety isolating transformers. Calculation of the cur- rent demand I: I = (P1+P2+…+Pn) / U [A] where: Pn is the dimensioned power consumption for each component [VA] U is the voltage (24) [V]. If the current demand I exceeds 6 A ( which corresponds to approximately 150 VA for a 24 V AC transformer ), it is neces- sary to use more transformers to prevent overheating. Supply cable sizing The wire size of the supply cable can be determined by calculating the resistance per meter R. The calculation presuppo- ses that a voltage drop of e.g. 2 V is accepted in the supply cable: R(per m) = Udrop / (I * L) [Ω/m] where: Udrop is the accepted voltage drop (2 V) in the cable [V] I is the current [A] L is the longest distance of supply cables from transformer to a component [m] Wire cross section area as a function of resistance per m for copper wire Example: Udrop = 2 V, I = 4 A, L = 20 m R (per m) = 2V / (4A × 20 m) = 0,025 Ω/m In the diagram a Wire cross section Area of 0,7 mm² can be read. Power consumption The power consumption for dimensioning supply cables for an UltraLink® FTMU is 0,5 VA. It is not recommended to use a transformer with a higher capacity than 150 VA.

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Commissioning Mobile app Using a smartphone with the Lindab OneLink app, nearby UltraLinks will be identified. Now you can connect to all the different UltraLink units, change settings and view information regarding each unit. You can find the OneLink app in both Google Play and AppStore, free of charge. The settings of all the different UltraLink units can then easy be changed directly through the app. This means you can have individually settings chosen for a specific building. It is therefore necessary to change the PIN code in the UltraLink, for a discription on how this is done, see page 13. Download app Lindab Ultra BT™ User Manual You can find the specific user manual for the Ultra BT™ Room Control System by clicking or scaning the QR code. Lindab Ultra BT™ Room Control System (Installation of wireless sensors) Ultra BT is based on few components and introduces a revolutionized way of controlling and optimizing your Demand Controlled Ventilation system at room level. It is a 360-degree system upgrade with a fully integrated Bluetooth Technology, making both costs, installation complexity, and daily operations much more efficient and indoor climate optimal at all times.

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Display The display can show useful information both with the diode flashing in green (status light) and with parameters in the LCD. If the product is equipped with Bluetooth, then the diode will also flash in blue every three seconds. If a device has been connected to the UltraLink via Bluetooth, then the diode will flash in blue every other second. By short pressing the mode button you can change the displayed parameter. If the button is pressed for more than 5 seconds (long press) then the configuration menu will be visible. The arrow at the bottom of the display indicates the current parameter type and unit. For a detailed description on configurating the UltraLink using the mode button on the display, see page 13. Parameter structure The information menu is visible in the display as soon as the device is powered and by default the air flow in m³/h is shown. You can toggle between the different parameters in the menu by short pressing the Mode button. The arrows at the bottom of the menu indicates the air flow reading, temperature and also what unit the current value has (if any). The following list of parameters are available; • Air flow (m³/h) • Air flow (l/s) • Air velocity (m/s) • Temperature (°C) • FTMU ID number Status light The green status light indicates: Mode Function No light FTMU is turned off Flashing light every 1 second A problem has occurred, error code will be visible in display Constant light FTMU is turned on and functioning as normal The Blue status light indicates: Mode Function No light Bluetooth is turned off or the FTMU is not equipped with it. Flashing light every 3 second Bluetooth is on stand by and is ready to connect to mobile device. Flashing light every 1 second A mobile device has been connected to the FTMU.

Serial no. 132600052 UltraLink Lindab® Lindab reserves the right to make changes without prior notice 2021-11-02 UltraLink® Monitor FTMU lindab | technical information Correcting flow measurement for installation close to disturbance Later UltraLinks have a function to compensate for mounting the product closer to a disturbance, and still have 5% measurement uncertainty, than what is specified in the chapter “Mounting”. If it is required to install an UltraLink close to a disturbance, the correction is done via a function in the OneLink app. Connect a mobile device to the UltraLink and tap the “Device” tab, there is a function ID-numbers The FTMU is given an ID-number between 1 to 239 during production. The given ID-number can be seen on the label on the outside of the box the FTMU is delivered in, the ID-number is the same as the three last digits in the serial number. If two or more Modbus devices have the same ID-number it is necessary to apply changes so that each of them get an unique ID-number to allow communication. To change the Modbus ID register of an UltraLink® all other devices with the same ID must be disconnected. It is more efficient to change the ID in the display under “Con.Set” (see table below) or with the OneLink app. The register for Modbus ID is a holding register with address 4x001. PIN code UltraLink with Bluetooth must be protected againt unauthorized access by PIN-code, which has to be stated before changes to the settings can be made. It is important to choose and change the code that the product is delivered with (1111), to ensure that no unauthorized changes are made. The Bluetooth radio can be disabled by setting register 4×007 to 0. The code can be changed in three ways: • using the configuration menu in the display, see below table. • connecting a PC via Modbus and using the “Configuration Tool” software. • connect a Bluetooth device and use the OneLink application. Maintenance The FTMU does not normally require any maintenance. The visible parts of the device can be wiped with a damp cloth. Configuration menu structure The configuration menu is activated by long pressing the button (5 sec). After long pressing the button a new menu will appear with three different options; • Con.Set (Connection settings) • Cancel (Cancel and return to information menu) Under Con.Set (connection settings) you can find the following options (toggle with short press, select with long press); which is activated by choosing “Type of disturbance” and then “Distance to dirsturbance”. After these two inputs have been made, the function is active and corrects the flow according to the inputs made. Menu tag Description Options Description • Pr. Protocol Pr.PAS Pr.Mod Pascal protocol Modbus • b. Baud rate b.9600 b.19200 b.38400 b.76800 Baud rate 9600 Baud rate 19200 Baud rate 38400 Baud rate 76800 • bit. Stop bits bit.1 bit.2 1 stop bits 2 stop bits • P. Parity P.odd P.even P.none Odd parity Even parity Parity none • Id. Modbus Id Id.x Modbus id (x = value) *) • PLA. PLA address for Pascal PLA.x PLA address (x = value) *) • ELA. ELA address for Pascal ELA.x ELA address (x = value) *) • Pi. Pin-code Pi.xxxx Default: xxxx = 1111 • Store Store changes Strores changes on long press • Cancel Cancel Cancel and ignore changes on long press *) To change the value you need to long press until a blinking cursor appears under the first single number in the current value. After that you short press to toggle to the desired number, then you long press to move the blinking cursor to the next single number in the current value. Proceed until the new value has been set and long press to continue.

2021-11-02 Lindab reserves the right to make changes without prior notice 2021-11-02 UltraLink® Monitor FTMU lindab | technical information Size Ø [mm] 4x400 Level Conf. 4x401 Unit Conf. 4x402 Temp Min [°C] 4x403 Temp Max [°C] 4x404 Flow Min [l/s] 4x406 Flow Max [l/s] 100 2 (2-10V) 0 (Flow) 0 50 0 55 125 0 50 0 86 160 0 50 0 141 200 0 50 0 220 250 0 50 0 344 315 0 50 0 546 400 0 50 0 880 500 0 50 0 1374 630 0 50 0 2182 Default values for the relevant registers related to “Analog Out 2” are according to the table below (Default values for flow max corresponds to 7 m/s). Size Ø [mm] 4x430 Level Conf. 4x431 Unit Conf. 4x432 Temp Min [°C] 4x433 Temp max [°C] 4x434 Flow Min l/s] 4x436 Flow Max [l/s] 100 2 (2-10V) 1 (Temperature) 0 50 0 55 125 0 50 0 86 160 0 50 0 141 200 0 50 0 220 250 0 50 0 344 315 0 50 0 546 400 0 50 0 880 500 0 50 0 1374 630 0 50 0 2182 Digital communication settings Registers 4x001-4x009 are used to configure communica- tion settings. When initializing contact for the first time the default settings will be active; Modbus id: Last three digits in the serial number (also visible in the display if the product has power) Baud rate: 19200 Parity: Odd Stop bits: 1 After updating any of the communication parameters the product needs to be power cycled for the changes to take effect. PLEASE LOOK IN THE APPENDED MODBUS REGIS- TER FOR INSTRUCTIONS ON HOW TO CHANGE REGISTER VALUES. SOME VALUES HAS SCALE FACTORS AND SOME VALUES OCCUPY TWO REGIS- TERS! All available settings are presented in the appendix. The settings can be changed via the RS485 bus and can be done from any device and configuration that can communicate using Modbus, but it can also be done via the OneLink app. For more register details see appendix. Analog communication settings Analog out settings via Modbus Analog out is always active but you need to specify what kind of data you want to read on the two ports Analog Out 1 (AO1) and Analog Out 2 (AO2); 1. Configure registers 4×401(AO1) and 4×431 (AO2) for the variables you want to read on the analog out terminals (0 = Flow, 1 = Temperature). 2. Configure registers 4×400 (AO1) and 4×430 (AO2) for analog out level configuration ( (0) 0-10V, (1) 10-0V, (2) 2-10V, (3) 10-2V) 3. Configure registers 4×401–406 (AO1) and 4×431–436 (AO2) with relevant data for max and min levels for the voltage range selected in step 2. You only need to configure the max and min values corresponding to the variable selected in step 1. Default values for the relevant registers related to “Analog Out 1” are according to the table below (Default values for flow max corresponds to 7 m/s).

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Error code Problem Comment Err004 Problems with flow measurement Might be caused by: • something blocking the flow sensors • an electronic fault • the flow sensors are not connected properly into the display unit • the sensor body is flawed Err05 External sensor low battery Err06 External sensor not reporting Err032 Factory data is corrupted Reset to factory defaults using UltraLink® configuration tool If digital communication fails, please verify the fol- lowing before contacting support: • Check settings for Baud rate, parity and stop bit and make sure the master uses the same settings as the UltraLinks. This can be done with a mobile phone and the OneLink app. • -A and +B are continuously connected between all the products without any mixups of -A and +B. • Bus layout is not allowed to be “star connection”. • The cables for power supply are connected identical on all products and transformers connecting G to G (24V) and G0 to G0 (GND). • The shield is continuous along the bus and grounded only at the transformer and the last UltraLink on the bus. • There are not more than 30 devices on the bus. (Install a repeater if you have more than 30 devices.) • The total length of the bus is maximum 300 m. (Install with a repeater if you have more than 300 m bus cable.) • Try to establish communication with a PC using Confi- guration Tool and a biased RS485-USB converter. • Keep the total length of stubbs (such as the premoun- ted cable) of a buss with 30 devices, no more than 20 meters. Error codes If a problem occurs the status light will start to flash and an error code will be displayed. Listed in the table below are their problem and possible solution. If analog signals fails, make sure to doublecheck the following: • Measure voltage on the screw terminal, the voltage should be the same as that on the BMS controller. • If the voltage is not correct, check that the wire is firmly attach to the terminal of the UltraLink. If it is not, then the UltraLink might not be able to pick up the signal. Problems accessing UltraLink via Bluetooth: • The UltraLink must have the Bluetooth logotype on the lid of the display unit in order to have a Bluetooth function. • To access the UltraLink via Bluetooth, the correct PIN code must be input before being able to connect. Verify with administrator that the PIN code is correct if you cannot connect. Troubleshooting We recommend you to in first hand use our Product Assistant inside the commissioning app OneLink. 1. Open Lindab OneLink app 2. Go to 3. Click on Product Assistant 4. Choose product 2 3 4

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Power supply AC/DC 24 (18-32) V Cable Max outer diameter 7 mm Power consumption 0,4 W Power consumption For wiring 0,5 VA Degree of protection EN 60529 IP44 Tightness class to the environment EN 12237 D Storage temperature range -30 to +50 °C Maximum ambient moisture 95 % RH Connection RS485 standard or analog Cable RS485 standard cable, 2-wire shielded twisted pair, min. 0,1 mm² (LIYCY cable) Protocol Modbus Output Flow Flow Velocity Temperature m³/h l/s m/s °C Velocity range For guaranteed measurement uncertainty 0,2 - 15,0 m/s Measurement uncertainty flow (assuming correct installation) Depending on which is the greatest of the per- centage or the absolute number for the specific products size. ±5 Dim. 100 = ±1,00 Dim. 125 = ±1,25 Dim. 160 = ±1,60 Dim. 200 = ±2,00 Dim. 250 = ±2,50 Dim. 315 = ±3,15 Dim. 400 = ±4,00 Dim. 500 = ±5,00 Dim. 630 = ±6,00 % or l/s l/s l/s l/s l/s l/s l/s l/s l/s Temperature range -10 to +50 °C Measurement uncertainty temperature ±1 °C Bluetooth radio Frequency 2402 — 2480 MHz Output -40 to +9 dB Airflows Ø [mm] 0,2 m/s 7,0 m/s 15,0 m/s m³/h l/s m³/h l/s m³/h l/s 100 6 2 198 55 425 118 125 9 3 309 86 662 184 160 14 4 507 141 1087 302 200 23 6 792 220 1696 471 250 35 10 1237 344 2650 736 315 56 16 1964 546 4208 1169 400 90 25 3167 880 6786 1885 500 141 39 4948 1374 10603 2945 630 224 62 7855 2182 16833 4676 Technical data

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Address : Modbus register address (3x indicates Input & 4x indicates Holding) UltraLink® : Type of UltraLink® where the register is available (Indicated by “x”) Name: Name of register Description: Short description of register. Data type: Data type for register (16bit contained in one register, 32bit and float in two consecutive registers) . Unit: Unit for register value (if any). Div: Scale factor for stored value (divide register value with “div” to get correct value). Default: Default setting. Min: Minimum value allowed for the register. Max: Maximum value allowed for the register. Access: RO for read only (Input registers) and RW for read and write (Holding registers). * = the value depends on the dimension of the product. Appendix A – Modbus register Address UltraLink® Name Description Data type Unit Div Default Min Max Access FTCU FTMU INPUT REGISTERS 3x008 X X Product Nominal Size Nominal diameter of duct 16bit mm RO 3x013 X X Unit Status Current unit status: 0 = Normal mode; 1 = Locating flow; 2 = Override control; 3 = Error; 4 = Control loop regulating; 5 = Angle sensor calibrating 16bit RO Flow info 3x150 X X Velocity in m/s Velocity in m/s Float m/s RO 3x152 X X Air flow in m³/h Air flow in m³/h Float m³/h RO 3x154 X X Air flow in l/s Air flow in l/s Float l/s RO Temperature info 3x200 X X Current temperature in ºC Temperature in degree celcius. 16bit ºC 10 RO Alarms 3x400 X X Alarm Register 1 Alarms 1-32 - bitwise: 1 = Motor not working. 2 = Angle sensor not working correctly. 3 = Flow setpoint not reached. 4 = Flow measure problems. 5 = External sensor low battery. 6 = External sensor not responding. 7 - 31 = Reserved for future use. 32 = Factory data is corrupted. 32bit RO Other 3×500 X X Signal amplification Current signal amplification 16bit 0 3 20 RO

2021-11-02 UltraLink® Monitor FTMU lindab | technical information * = the value depends on the dimension of the product. Address UltraLink® Name Description Data type Unit Div Default Min Max Access FTCU FTMU Sensor 3x2001 X X Sensor Global Set Point Factor Multiplication factor for flow set point 16bit 100 100 RO 3x2002 X X Sensor Global Factored Set Point Holding register FLOW_SET_POINT (314) multiplied with SENSOR_GLOBAL_SET_ POINT_FACTOR 16bit l/s 0 RO 3x2007 X X Sensor Global State for Control Current state of control: 0 = Off 1 = Unoccupird 2 = Normal 3 = Forced 4 = Delayed presence 5 = Temperature increase 6 = Temperature decrease 7 = CO2 decrease 8 = Humidity increase 9 = Humidity decrease 10 = VOC decrease 11 = Particles decrease 50 = Flow slave 100 = Clearing error 101 = Error C1 102 = Error C2 103 = Error C3 104 = Error C4 105 = Error C5 106 = Error C6 3x2012 X X Sensor Com Current Pre- sence Sum Current Presence based on sum from all sensors 16bit 0 RO 3x2014 X X Sensor Com Presence State 0 = Disabled 1 = Unoccupied 2 = Normal 3 = Forced 4 = Delayed presence 5 = Error 16bit RO 3x2021 X X Sensor Com Min. Temp Minimum Temperature 16bit degC 10 RO 3x2022 X X Sensor Com Max. Temp Maximum Temperature 16bit degC 10 RO 3x2023 X X Sensor Com Average Temp Average Temperature 16bit degC 10 RO 3x2025 X X Sensor Com Temp State 0 = Disabled, 1 = Within deadband, 2 = Outside deadband, 3 = Error 16bit RO 3x2034 X X Sensor Com Summed Flow Summed Flow 16bit l/s 10 RO 3x2036 X X Sensor Com Flow State 0 = Disabled, 1 = Within deadband, 2 = Outside deadband, 3 = Error 16bit RO 3x2041 X X Sensor Com Min. Humidity Minimum Humidity 16bit % RH 10 RO 3x2042 X X Sensor Com Max. Hu- midity Maximum Humidity 16bit % RH 10 RO 3x2043 X X Sensor Com Average Humidity Average Humidity 16bit % RH 10 RO 3x2045 X X Sensor Com Humidity State 0 = Disabled, 1 = Within deadband, 2 = Otside deadband, 3 = Error 16bit RO 3x2051 X X Sensor Com Minimum CO2 Minimum CO2 16bit ppm 0 RO 3x2052 X X Sensor Com Maximum CO2 Maximum CO2 16bit ppm 0 RO 3x2053 X X Sensor Com Average CO2 Average CO2 16bit ppm 0 RO

2021-11-02 UltraLink® Monitor FTMU lindab | technical information * = the value depends on the dimension of the product. Address UltraLink® Name Description Data type Unit Div Default Min Max Access FTCU FTMU 3x2055 X X Sensor Com CO2 State 0 = Disabled, 1 = Within deadband, 2 = Otside deadband, 3 = Error 16bit RO 3x2103 X X Sensor 1 Battery Level Sensor 1 battery level 16bit % 0 RO 3x2104 X X Sensor 1 RSSI Sensor 1 RSSI 16bit % 0 RO 3x2107 X X Sensor 1 Current Presence Sensor 1 Current Presence 16bit 0 RO 3x2108 X X Sensor 1 Temperature Sensor 1 Temperature 16bit degC 10 0 RO 3x2109 X X Sensor 1 Flow Sensor 1 Flow 16bit l/s 10 0 RO 3x2110 X X Sensor 1 Humidity Sensor 1 Humidity 16bit % RH 10 0 RO 3x2111 X X Sensor 1 CO2 Sensor 1 CO2 16bit ppm 0 RO 3x2123 X X Sensor 2 Battery Level Sensor 2 battery level 16bit % 0 RO 3x2124 X X Sensor 2 RSSI Sensor 2 RSSI 16bit % 0 RO 3x2127 X X Sensor 2 Current Presence Sensor 2 Current Presence 16bit 0 RO 3x2128 X X Sensor 2 Temperature Sensor 2 Temperature 16bit degC 10 0 RO 3x2129 X X Sensor 2 Flow Sensor 2 Flow 16bit l/s 10 0 RO 3x2130 X X Sensor 2 Humidity Sensor 2 Humidity 16bit % RH 10 0 RO 3x2131 X X Sensor 2 CO2 Sensor 2 CO2 16bit ppm 0 RO 3x2143 X X Sensor 3 Battery Level Sensor 3 battery level 16bit % 0 RO 3x2144 X X Sensor 3 RSSI Sensor 3 RSSI 16bit % 0 RO 3x2148 X X Sensor 3 Temperature Sensor 3 Temperature 16bit degC 10 0 RO 3x2149 X X Sensor 3 Flow Sensor 3 Flow 16bit l/s 10 0 RO 3x2150 X X Sensor 3 Humidity Sensor 3 Humidity 16bit % RH 10 0 RO 3x2151 X X Sensor 3 CO2 Sensor 3 CO2 16bit ppm 0 RO 3x2163 X X Sensor 4 Battery Level Sensor 4 battery level 16bit % 0 RO 3x2164 X X Sensor 4 RSSI Sensor 4 RSSI 16bit % 0 RO 3x2167 X X Sensor 4 Current Presence Sensor 4 Current Presence 16bit 0 RO 3x2168 X X Sensor 4 Temperature Sensor 4 Temperature 16bit degC 10 0 RO 3x2169 X X Sensor 4 Flow Sensor 4 Flow 16bit l/s 10 0 RO 3x2170 X X Sensor 4 Humidity Sensor 4 Humidity 16bit % RH 10 0 RO 3x2171 X X Sensor 4 CO2 Sensor 4 CO2 16bit ppm 0 RO 3x2183 X X Sensor 5 Battery Level Sensor 5 battery level 16bit % 0 RO 3x2184 X X Sensor 5 RSSI Sensor 5 RSSI 16bit % 0 RO 3x2187 X X Sensor 5 Current Presence Sensor 5 Current Presence 16bit 0 RO 3x2188 X X Sensor 5 Temperature Sensor 5 Temperature 16bit degC 10 0 RO 3x2189 X X Sensor 5 Flow Sensor 5 Flow 16bit l/s 10 0 RO 3x2190 X X Sensor 5 Humidity Sensor 5 Humidity 16bit % RH 10 0 RO 3x2191 X X Sensor 5 CO2 Sensor 5 CO2 16bit ppm 0 RO HOLDING REGISTERS Communication settings 4x001 X X Communication id Modbus address 16bit 1 239 RW 4x002 X X RS485 Baud Rate Conf. Baudrate: 0 = 9600 1 = 19200 2 = 38400 3 = 76800 16bit 1 0 3 RW 4x003 X X RS485 Parity Conf. Parity: 0 = Odd; 1 = Even; 2 = None 16bit 0 0 2 RW 4x004 X X RS485 Stop Bit Conf. Number of stopbits: 1 or 2. 16bit 1 1 2 RW

2021-11-02 UltraLink® Monitor FTMU lindab | technical information * = the value depends on the dimension of the product. Address UltraLink® Name Description Data type Unit Div Default Min Max Access FTCU FTMU 4x005 X X RS485 Protocol Conf. Protocol: 0 = Modbus; 1 = Not used; 2 = Pascal; 16bit 0 0 2 RW 4×006 X X Bluetooth Password Password which must be provided to pair Bluetooth devices. This password can always be changed from wired connection. From wi- reless it can only be changed when connec- tion is established using current password. 16bit 1111 0000 9999 RW 4×007 X X Bluetooth Enable Enable Bluetooth Communication 0 = Bluetooth turned off; 1 = Bluetooth turned on; 16bit 1 0 2 RW 4x008 X X PLA ID used for Pascal 16bit 1 239 RW 4x009 X X ELA ID used for Pascal 16bit 1 239 RW 4×010 X X Bluetooth TX Power Level Configure TX Power Level dBm. Accepted values: -40, -20, -16, -12, -8, -4, 0, 2, 3, 4, 5, 6, 7, 8, 9 16bit 0 -40 9 RW System configuration 4x072 X X Installation as Extract or Supply Specifies if device is in supply or extract: 0 = Undefined 1 = Supply 2 = Extract 16bit 0 0 2 RW 4x073 X X Installation Zone Number Specifies in which zone the product is installed in 16 bit 0 0 65535 RW 4x074 X X Installation Floor Number Specifies on which floor the product is installed in 16bit 0 0 65535 RW 4x082 X X Execute Factory Reset Factory reset of all parameters. Unit will restart 0 = Do nothing; 1 = Factory Reset 16bit 0 0 1 RW 4x083 X X Execute Reboot Reboot the unit 0 = Do nothing; 1 = Reboot the unit; 16bit 0 0 1 RW Analog output 4x400 X X Analog Output 1 Level Conf. Analog output config: 0 = 0-10 V, 1 = 10-0 V, 2 = 2-10 V, 3 = 10-2 V. 16bit 2 0 3 RW 4x401 X X Analog Output 1 Unit Conf. Show: 0 = Flow; 1 = Temperature; 2 = Angle; 16bit 0 0 2 RW 4x402 X X Analog Output 1 Temp. Min. Min temperature shown = Min output voltage (Only relevant when 4x401 is set to 1 ) 16bit ºC 0 -40 50 RW 4x403 X X Analog Output 1 Temp. Max. Max temperature shown = Max output volta- ge (Only relevant when 4x401 is set to 1 ) 16bit ºC 50 -40 50 RW 4x404 X X Analog Output 1 Flow Min. Min flow shown = Min output voltage (Only relevant when 4x401 is set to 0 ) 16bit l/s 0 -4700 4700 RW 4x406 X X Analog Output 1 Flow Max. Max flow shown = Max output voltage (Only relevant when 4x401 is set to 0 ) 16bit l/s * -4700 4700 RW 4x430 X X Analog Output 2 Level Conf. Analog output config: 0 = 0-10 V, 1 = 10-0 V, 2 = 2-10 V, 3 = 10-2 V. 16bit 2 0 3 RW 4x431 X X Analog Output 2 Unit Conf. Show: 0 = Flow 1 = Temperature 2 = Angle 16bit 2 0 2 RW

2021-11-02 UltraLink® Monitor FTMU lindab | technical information Address UltraLink® Name Description Data type Unit Div Default Min Max Access FTCU FTMU 4x432 X X Analog Output 2 Temp. Min. Min temperature shown = Min output voltage (Only relevat when 4x431 is set to 1 ) 16bit ºC 0 -40 50 RW 4x433 X X Analog Output 2 Temp. Max. Max temperature shown = Max output volta- ge (Only relevant when 4x431 is set to 1 ) 16bit ºC 50 -40 50 RW 4x434 X X Analog Output 2 Flow Min. Min flow shown = Min output voltage (Only relevant when 4x431 is set to 0 ) 16bit l/s 0 -4700 4700 RW 4x436 X X Analog Output 2 Flow Max. Max flow shown = Max output voltage (Only relevant when 4x431 is set to 0 ) 16bit l/s * -4700 4700 RW Sensor 4x2100 X X Sensor Presence Enable Control 0 = Disable 1 = Enable 16bit 0 0 1 RW 4x2101 X X Sensor Presence Trigger Time Temporary trigger time for presence 16bit min 1 0 60 RW 4x2102 X X Sensor Presence Trigger Factor Factor related to toggle 0 -> 1 16bit % 100 150 49 501 RW 4x2103 X X Sensor Unoccupied Mul- tiplication Factor Multiplication factor for Unoccupied 16bit % 100 50 -1 101 RW 4x2110 X X Sensor Temperature Ena- ble Control 0 = Disable 1 = max 2 = min 3 = avg 16bit 0 0 3 RW 4x2111 X X Sensor Temperature Baseline Baseline for temperature 16bit C 22 -50 50 RW 4x2112 X X Sensor Temperature Deviation Allowed deviation before full factor effect 16bit C 2 0 50 RW 4x2113 X X Sensor Temperature Dead Band Dead band for sensor type Temperature 16bit % 100 50 -1 101 RW 4x2114 X X Sensor Temperature Mul- tiplication Factor Multiplication factor for Temperature 16bit % 100 150 49 501 RW 4x2120 X X Sensor Flow Enable Control 0 = Disable 1 = Sum 16bit 0 0 1 RW 4x2121 X X Sensor Flow Dead Band Dead band for sensor type Flow 16bit % 100 2 0 100 RW 4x2122 X X Sensor Flow Multiplication Factor Multiplication factor for Flow 16bit % 100 100 0 500 RW 4x2130 X X Sensor Humidity Enable Control 0 = Disable 1 = max 2 = min 3 =avg 16bit 0 0 3 RW 4x2131 X X Sensor Humidity Baseline Baseline for humidity 16bit % 50 0 100 RW 4x2132 X X Sensor Humidity Deviation Allowed deviation before full factor effect 16bit % 20 0 100 RW 4x2133 X X Sensor Humidity Dead Band Dead band for sensor type Humidity 16bit % 100 50 -1 101 RW 4x2134 X X Sensor Humidity Multipli- cation Factor Multiplication factor for Humidity 16bit % 100 150 49 501 RW 4x2135 X X Sensor Humidity Supplied Estimated value of supply air humidity 16bit % 50 0 100 RW 4x2140 X X Sensor CO2 Enable Control 0 = Disable 1 = max 2 = min 3 =avg 16bit 0 0 3 RW 4x2141 X X Sensor CO2 Baseline Baseline for CO2 16bit ppm 600 400 2000 RW 4x2142 X X Sensor CO2 Deviation Allowed deviation before full factor effect 16bit ppm 400 0 1000 RW 4x2143 X X Sensor CO2 Dead Band Dead band for sensor type CO2 16bit % 100 50 -1 101 RW 4x2144 X X Sensor CO2 Multiplication Factor Multiplication factor for CO2 16bit % 100 150 49 501 RW 4x2145 X X Sensor CO2 Supplied Estimated value of supply air CO2 16bit ppm 400 300 2000 RW * = the value depends on the dimension of the product.

Indoor climate is crucial to how we feel, how productive we are and if we stay healthy. We at Lindab have therefore made it our most important objective to contribute to an indoor climate that improves people’s lives. We do this by developing energy-efficient ventilation solutions and durable building products. We also aim to contribute to a better climate for our planet by working in a way that is sustainable for both people and the environment. Lindab | For a better climate