Siemens SINAMICS V20 - Page 189

Communicating with the PLC
7.2 MODBUS communication
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
187
Mapping table
The table below shows registers that the SINAMICS V20 converter supports. "R", "W", and
"R/W" in the "Access" column stand for read, write, and read/write respectively. Registers
with * are available only when the optional I/O Extension Module is connected.
HSW (speed setpoint), HIW (actual speed), STW (control word), and ZSW (status word)
refer to control data. For more information, see parameters r2018 and P2019 in Chapter
"Parameter list (Page 193)".
Register No.
Description
Ac-
cess
Unit
Scaling
factor
Range or On/Off
text
Read
Write
Converter
MODBUS
0
40001
Watchdog time
R/W
ms
1
0 - 65535
-
-
1
40002
Watchdog action
R/W
-
1
-
-
-
2
40003
Frequency setpoint
R/W
%
100
0.00 - 100.00
HSW
HSW
3
40004
Run enable
R/W
-
1
0 - 1
STW:3
STW:3
4 40005 Forward/reverse
command
R/W - 1 0 - 1 STW:11 STW:11
5
40006
Start command
R/W
-
1
0 - 1
STW:0
STW:0
6
40007
Fault acknowledgement
R/W
-
1
0 - 1
STW:7
STW:7
7
40008
PID setpoint reference
R/W
%
100
-200.0 - 200.0
P2240
P2240
8
40009
PID enable
R/W
-
1
0 - 1
r0055.8
(BICO) P2200
9
40010
Current limit
R/W
%
10
10.0 - 400.0
P0640
P0640
10
40011
Acceleration time
R/W
s
100
0.00 - 650.0
P1120
P1120
11
40012
Deceleration time
R/W
s
100
0.00 - 650.0
P1121
P1121
12
40013
(Reserved)
13
40014
Digital output 1
R/W
-
1
HIGH
LOW
r0747.0
(BICO) P0731
14
40015
Digital output 2
R/W
-
1
HIGH
LOW
r0747.1
(BICO) P0732
15
40016
Reference frequency
R/W
Hz
100
1.00 - 550.00
P2000
P2000
16
40017
PID upper limit
R/W
%
100
-200.0 - 200.0
P2291
P2291
17
40018
PID lower limit
R/W
%
100
-200.0 - 200.0
P2292
P2292
18
40019
Proportional gain
R/W
-
1000
0.000 - 65.000
P2280
P2280
19
40020
Integral gain
R/W
s
1
0 - 60
P2285
P2285
20
40021
Differential gain
R/W
-
1
0 - 60
P2274
P2274
21
40022
Feedback gain
R/W
%
100
0.00 - 500.00
P2269
P2269
22
40023
Low pass
R/W
-
100
0.00 - 60.00
P2265
P2265
23
40024
Frequency output
R
Hz
100
-327.68 - 327.67
r0024
r0024
24
40025
Speed
R
RPM
1
-16250 - 16250
r0022
r0022
25
40026
Current filtered
R
A
100
0 - 163.83
r0027
r0027
26
40027
Torque
R
Nm
100
-325.00 - 325.00
r0031
r0031
27
40028
Actual power
R
kW
100
0 - 327.67
r0032
r0032
28
40029
Total kWh
R
kWh
1
0 - 32767
r0039
r0039
29
40030
DC bus voltage
R
V
1
0 - 32767
r0026
r0026
30
40031
Reference
R
Hz
100
-327.68 - 327.67
r0020
r0020
31
40032
Rated power
R
kW
100
0 - 327.67
r0206
r0206
32
40033
Voltage output
R
V
1
0 - 32767
r0025
r0025