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]