Operating Instructions

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Siemens Modbus för SOC7-128, slave mode SE1Z5996en7
Building Technologies Contents 2015-08-26
Contents
1 About this Document .................................................................................... 4
1.1 Foreword ....................................................................................................... 4
1.2 Notes on Use ................................................................................................ 4
1.3 Symbols and Abbreviations .......................................................................... 4
2 General ......................................................................................................... 5
2.1 The Modbus protocol .................................................................................... 5
2.2 RS485 networks............................................................................................ 6
2.3 Tools ............................................................................................................. 6
2.4 Troubleshooting, Tips ................................................................................... 6
3 Connection and Configuration ...................................................................... 7
3.1 The system ................................................................................................... 7
3.2 General ......................................................................................................... 8
3.3 Connection via cable .................................................................................... 9
3.4 Connection via ethernet network ................................................................ 10
3.5 Configure .................................................................................................... 10
4 Register map and function codes ............................................................... 11
4.1 Register map .............................................................................................. 11
4.2 Function codes ........................................................................................... 11
5 Reference addresses .................................................................................. 12
5.1 General ....................................................................................................... 12
5.2 Coil Status .................................................................................................. 12
5.3 Input Status ................................................................................................. 12
5.4 Input Register ............................................................................................. 13
5.5 Holding Register ......................................................................................... 14
Index .................................................................................................................... 15