Siemens SINAMICS G120 Operating Instructions Manual page 162

Configuring the fieldbus
7.7 Communication via RS485
Request and response IDs
Bits 12 to 15 of the 1st word of the parameter channel contain the request and response
identifier.
Table 7- 11
Request
identifier
0
1
2
3
4
6
2)
7
2)
8
2)
9
1)
2)
Table 7- 12
Response
identifier
0
1
2
3
4
5
6
7
8
1)
2)
162
Request identifiers, control → inverter
Description
No request
Request parameter value
Change parameter value (word)
Change parameter value (double word)
Request descriptive element
Request parameter value (field)
Change parameter value (field, word)
Change parameter value (field, double word)
Request number of field elements
The required element of the parameter is specified in IND (2nd word).
The following request IDs are identical: 1 ≡ 6, 2 ≡ 7 3 ≡ 8.
We recommend that you use identifiers 6, 7, and 8.
Response identifiers, inverter → control
Description
No response
Transfer parameter value (word)
Transfer parameter value (double word)
Transfer descriptive element
Transfer parameter value (field, word)
Transfer parameter value (field, double word)
Transfer number of field elements
Inverter cannot process the request.
In the most significant word of the parameter channel, the inverter sends an error
number to the control, refer to the following table.
No master controller status / no authorization to change parameters of the parameter
channel interface
The required element of the parameter is specified in IND (2nd word).
The required element of the indexed parameter is specified in IND (2nd word).
1)
1)
1)
1)
1)
2)
2)
Converter with the CU250S-2 Control Unit (vector)
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB
Response identifier
positive negative
0 7 / 8
1 / 2 7 / 8
1 7 / 8
2 7 / 8
3 7 / 8
4 / 5 7 / 8
4 7 / 8
5 7 / 8
6 7 / 8