Manual [PDF] (65 pages)
- Updated: 12.08.2026
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®
PROFIBUS Power Hub
Segment Coupler 3
(SK3)
With HD2-GTR-4PA Gateway
PROCESS AUTOMATION
MANUAL
With regard to the supply of products, the current issue of the following document is ap-
plicable: The General Terms of Delivery for Products and Services of the Electrical Indus-
try, published by the Central Association of the Electrical Industry (Zentralverband
Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most recent version as well as the
supplementary clause: "Expanded reservation of proprietorship"
PROFIBUS Power Hub Segment Coupler 3 (SK3)
PROFIBUS Power Hub Segment Coupler 3 (SK3)
3
1
Introduction................................................................................. 5
1.1
Contents................................................................................................ 5
1.2
Target Group, Personnel...................................................................... 5
1.3
Symbols Used ...................................................................................... 5
2
Product Specifications............................................................... 7
2.1
Overview and Application ................................................................... 7
2.2
Coupling................................................................................................ 8
2.3
Segment Supply................................................................................... 9
2.4
System Components ........................................................................... 9
2.5
Recommended System Combinations............................................. 11
2.6
Component Overview ........................................................................ 14
2.7
Technical Data .................................................................................... 15
2.8
Dimensions......................................................................................... 18
3
Installation and Commissioning ............................................. 19
3.1
Mounting and Dismounting............................................................... 19
3.2
Shielding/Grounding ......................................................................... 21
3.2.1
Connection to Equipotential Bonding System .................................. 21
3.3
Connections ....................................................................................... 23
4
Hazardous Area Installation and Use ..................................... 25
4.1
Installation in Zone 2, Category 3G.................................................. 25
5
PROFIBUS Commissioning ..................................................... 26
5.1
Device Address Assignment............................................................. 26
5.2
Cyclic Data Exchange........................................................................ 26
5.2.1
Information on GSD File Conversion................................................ 27
5.2.2
GSD Converter ................................................................................ 28
5.2.3
Information on Watchdog Time (TWD)............................................. 29
5.2.4
Retry Limits...................................................................................... 31
5.2.5
Device Type Manager (DTM): Installation and Commissioning ........ 31
4
PROFIBUS Power Hub Segment Coupler 3 (SK3)
6
Operation................................................................................... 35
6.1
Built-In Slave (BIS) Description ........................................................35
6.2
Coupled Slaves...................................................................................37
6.3
Acyclic Data Exchange with Built-In Slave via Device Type Manager
37
6.3.1
Brief Introduction to DTM with PACTwareTM (Example)...................38
6.3.2
Overview of the Device Type Manager User Interface......................39
6.3.3
HD2-GTR-4PA Structure Diagrams ..................................................39
6.3.4
Watchdog Time in the Device Type Manager ...................................40
6.3.5
PROFIBUS PA Retry Limit in the Device Type Manager...................41
6.3.6
Restart Functions, Redundancy Switchover, and Firmware Update .41
6.4
Redundant Operation.........................................................................44
7
Advanced Diagnostics with the PROFIBUS Power Hub ....... 46
7.1
Advanced Diagnostics Infrastructure ..............................................46
7.2
PROFIBUS Advanced Diagnostics Integration................................49
8
Basic Redundancy Concepts .................................................. 51
9
Glossary .................................................................................... 54
10 Parameter Reference List ........................................................ 56
10.1
General Parameters ............................................................................56
10.2
Diagnostic Parameters.......................................................................56
11 Troubleshooting........................................................................ 59
11.1
Faults Indicated via LEDs ..................................................................59
11.2
Fault Indicated via DTM......................................................................60
11.3
Fault Indicated via DCS......................................................................61
11.4
Problems with Gateway Operation....................................................62
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