Siemens SINAMICS S120, Function Manual

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Communication
11.4 Communication via MODBUS TCP
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
861
11.4.4 Mapping tables
Modbus register and Control Unit parameters
The Modbus protocol contains register or bit numbers for addressing memory. You must
assign the appropriate control words, status words, and parameters to these registers in the
device.
The valid holding register address range extends from 40001 up to 40722. When trying to
access other holding registers, the "Exception code" error is output
The process data are transferred into the register range from 40100 up to 40119.
Note
"R"; "W"; "R/W" in the “Access" column stands for read (with FC03); write (with FC06);
read/write.
Table 11- 19 Assigning the Modbus register to the parameters - process data
Register Description Ac-
cess
Unit Scaling ON/OFF text
or Value range
Data / parameter
Control data
40100
Control word (see SINAMICS S120/150
List Manual, function diagram 2442)
R/W - 1 - Process data 1
40101 Main setpoint R/W - 1 - Process data 2
40102 STW 3 R/W - 1 - Process data 3
40103 STW 4 R/W - 1 - Process data 4
40104 PZD 5 R/W - 1 - Process data 5
40105 PZD 6 R/W - 1 - Process data 6
40106 PZD 7 R/W - 1 - Process data 7
40107 PZD 8 R/W - 1 - Process data 8
40108 PZD 9 R/W - 1 - Process data 9
40109 PZD 10 R/W - 1 - Process data 10
Status data
40110
Control word (see SINAMICS S120/150
List Manual, function diagram 2452)
R - 1 - Process data 1
40111 Main actual value R - 1 - Process data 2
40112 ZSW 3 R - 1 - Process data 3
40113 ZSW 4 R - 1 - Process data 4
40114 PZD 5 R - 1 - Process data 5
40115 PZD 6 R - 1 - Process data 6
40116 PZD 7 R - 1 - Process data 7
40117 PZD 8 R - 1 - Process data 8
40118 PZD 9 R - 1 - Process data 9
40119 PZD 10 R - 1 - Process data 10