Siemens SENTRON PAC RS485 Manual page 4

Table of contents
5.1.9 Modbus command parameters ................................................................................................... 51
5.1.10 MODBUS communication parameter with the function codes 0x03, 0x04 and 0x10 ................. 52
5.1.11 Modbus device information with the function codes 0x03, 0x04 and 0x10................................. 53
5.1.12 MODBUS standard device identification with the function code 0x2B ....................................... 55
5.1.13 Parameters and function codes supported by the broadcast commands................................... 55
6 Configuration ........................................................................................................................................... 57
6.1 Default settings ........................................................................................................................... 57
6.2 Changing the address ................................................................................................................. 57
6.3 Configuration of the PAC RS485 expansion module on the SENTRON PAC3200 Power
Monitoring Device ....................................................................................................................... 58
7 Service and maintenance ........................................................................................................................ 61
7.1 Cleaning ...................................................................................................................................... 61
7.2 Repair.......................................................................................................................................... 62
7.3 Disposal....................................................................................................................................... 62
8 Alarm, error, and system messages ........................................................................................................ 63
8.1 Diagnostics concept .................................................................................................................... 63
8.2 Diagnostics LED.......................................................................................................................... 64
8.3 Initializing the module.................................................................................................................. 64
9 Troubleshooting/FAQs............................................................................................................................. 65
9.1 Power failure ............................................................................................................................... 65
10 Technical data ......................................................................................................................................... 67
10.1 Cable ........................................................................................................................................... 67
10.2 Standards .................................................................................................................................... 67
10.3 Technical data............................................................................................................................. 68
10.4 Communication interface ............................................................................................................ 70
10.5 Labeling....................................................................................................................................... 71
11 Dimension drawings ................................................................................................................................ 73
11.1 Dimension drawings.................................................................................................................... 73
12 Application examples............................................................................................................................... 75
12.1 Examples of MODBUS communication ...................................................................................... 75
A Appendix.................................................................................................................................................. 79
A.1 Correction sheet.......................................................................................................................... 79
B ESD guidelines ........................................................................................................................................ 81
B.1 Electrostatic sensitive devices (ESD) ......................................................................................... 81
C List of abbreviations................................................................................................................................. 83
C.1 Abbreviations .............................................................................................................................. 83
Glossary .................................................................................................................................................. 85
Index........................................................................................................................................................ 89
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PAC RS485
Manual, 02/2008, A5E02091800B-01