Siemens SINAMICS G120 - Page 166

Configuring the fieldbus
7.6 Communication via RS485
Inverter with CU230P-2 Control Units
166 Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
Table 7- 18 Assigning the Modbus register to the parameters of the Control Unit
Modbus
Reg.
No.
Description
Modbus
access
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]
Converter identification
40300
Powerstack number
R
--
1
0 … 32767
r0200
40301
Converter firmware
R
--
0.0001
0.00 … 327.67
r0018
Converter data
40320
Rated power of the power unit
R
kW
100
0 … 327.67
r0206
40321
Current limit
R/W
%
10
10.0 … 400.0
p0640
40322
Ramp-up time
R/W
s
100
0.00 … 650.0
p1120
40323
Ramp-down time
R/W
s
100
0.00 … 650.0
p1121
40324
Reference speed
R/W
RPM
1
6.000 … 32767
p2000
Converter diagnostics
40340 Speed setpoint R RPM 1 -16250 … 16250 r0020
40341
Actual speed value
R
RPM
1
-16250 … 16250
r0022