Siemens SINAMICS G120 CU240B-2 - Page 148

Connection to a fieldbus
6.4 Communication via RS485
Inverter with CU240B-2 and CU240E-2 Control Units
148 Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
As a user, you can use both the register from the MM436 area and from the SINAMICS
G120 area.
The registers 40100 to 40111 are described as process data. A telegram monitoring time
can be activated in p2040 for these registers.
Note
R"; "W"; "R/W" in the column Modbus access stands for read (with FC03); write (with FC06);
read/write.
Table 6- 30 Assigning the Modbus register to the parameters of the Control Unit
Modbus
Reg.
No.
Description Modb
us
acces
s
Unit Scaling
factor
On/Off text
or value range
Data / parameter
Process data
Control data
40100 Control word R/W -- 1 Process data 1
40101 Main setpoint R/W -- 1 Process data 2
Status data
40110 Status word R -- 1 Process data 1
40111 Main actual value R -- 1 Process data 2
Parameter data
Digital outputs
40200 DO 0 R/W -- 1 HIGH LOW p0730, r747.0, p748.0
40201 DO 1 R/W -- 1 HIGH LOW p0731, r747.1, p748.1
40202 DO 2 R/W -- 1 HIGH LOW p0732, r747.2, p748.2
Analog outputs
40220 AO 0 R % 100 -100.0 … 100.0 r0774.0
40221 AO 1 R % 100 -100.0 … 100.0 r0774.1
Digital inputs
40240 DI 0 R -- 1 HIGH LOW r0722.0
40241 DI 1 R -- 1 HIGH LOW r0722.1
40242 DI 2 R -- 1 HIGH LOW r0722.2
40243 DI 3 R -- 1 HIGH LOW r0722.3
40244 DI 4 R -- 1 HIGH LOW r0722.4
40245 DI 5 R -- 1 HIGH LOW r0722.5
Analog inputs
40260 AI 0 R % 100 -300.0 … 300.0 r0755 [0]
40261 AI 1 R % 100 -300.0 … 300.0 r0755 [1]
40262 AI 2 R % 100 -300.0 … 300.0 r0755 [2]
40263 AI 3 R % 100 -300.0 … 300.0 r0755 [3]