Siemens SINAMICS V20 Series Operating Instructions Manual page 112

Communicating with the PLC
6.2 MODBUS communication
Parameter Function
r2024[0] USS / MODBUS error statistics
...
r2031[0]
r2018[0...7] CO: PZD from USS / MODBUS on
RS485
P2019[0...7] CI: PZD to USS / MODBUS on RS485
Mapping table
The SINAMICS V20 inverter supports two sets of registers (40001 ... 40062, 40100 ...
40522) as the table below shows. "R", "W", "R/W" in the column Access stand for read, write,
read/write.
Register No.
Inverter MODBUS
0 40001
1 40002
2 40003
3 40004
4 40005
5 40006
6 40007
7 40008
8 40009
9 40010
10 40011
11 40012
12 40013
13 40014
14 40015
15 40016
16 40017
17 40018
18 40019
19 40020
20 40021
21 40022
22 40023
23 40024
24 40025
25 40026
26 40027
27 40028
28 40029
29 40030
112
Description Acce
ss
WDOG TIME R/W
WDOG ACTION R/W
FREQ REF R/W
RUN ENABLE R/W
CMD FWD REV R/W
CMD START R/W
FAULT ACK R/W
PID SETP REF R/W
ENABLE PID R/W
CURRENT LMT R/W
ACCEL TIME R/W
DECEL TIME R/W
(Reserved)
DIGITAL OUT 1 R/W
DIGITAL OUT 2 R/W
REF FREQ R/W
PID UP LMT R/W
PID LO LMT R/W
P GAIN R/W
I GAIN R/W
D GAIN R/W
FEEDBK GAIN R/W
LOW PASS R/W
FREQ OUTPUT R
SPEED R
CURRENT R
TORQUE R
ACTUAL PWR R
TOTAL KWH R
DC BUS VOLTS R
Setting
The state of the telegram information on RS485 is reported
regardless of the protocol set in P2023.
Displays process data received via USS / MODBUS on
RS485.
Displays process data transmitted via USS / MODBUS on
RS485.
Unit Scaling Range or On/Off
factor text
ms 1 0 - 65535
- 1 -
% 100 0.00 - 100.00
- 1 0 - 1
- 1 0 - 1
- 1 0 - 1
- 1 0 - 1
% 100 -200.0 - 200.0
- 1 0 - 1
% 10 10.0 - 400.0
s 100 0.00 - 650.0
s 100 0.00 - 650.0
- 1 HIGH
- 1 HIGH
Hz 100 1.00 - 599.00
% 100 -200.0 - 200.0
% 100 -200.0 - 200.0
- 1000 0.000 - 65.000
s 1 0 - 60
- 1 0 - 60
% 100 0.00 - 500.00
- 100 0.00 - 60.00
Hz 100 -327.68 - 327.67
RPM 1 -16250 - 16250
A 100 0 - 163.83
Nm 100 -325.00 - 325.00
kW 100 0 - 327.67
kWh 1 0 - 32767
V 1 0 - 32767
Read
-
-
HSW
STW:3
STW:11
STW:0
STW:7
P2240
r0055.8
P0640
P1120
P1121
LOW r0747.0
LOW r0747.1
P2000
P2291
P2292
P2280
P2285
P2274
P2269
P2265
r0024
r0022
r0027
r0031
r0032
r0039
r0026
SINAMICS V20 Inverter
Operating Instructions, 07/2012, A5E03728167
Write
-
-
HSW
STW:3
STW:11
STW:0
STW:7
P2240
(BICO) P2200
P0640
P1120
P1121
(BICO) P0731
(BICO) P0732
P2000
P2291
P2292
P2280
P2285
P2274
P2269
P2265
r0024
r0022
r0027
r0031
r0032
r0039
r0026