Siemens SINAMICS G120X - Parameter Channel; Structure of the Parameter Channel; AK: Request and Response ID

6.3.3.4 Parameter channel
Overview
The parameter channel allows parameter values to be cyclically read and written to.
6XELQGH[3DJHLQGH[
3.(VWZRUG
3DUDPHWHUFKDQQHO
3:(UGDQGWKZRUGV
,1'QGZRUG

3:(3:(

$.3186
3
0
Structure of the parameter channel:
● PKE (1st word)
– Type of task (read or write).
– Bit 11 is reserved and is always assigned 0.
– Parameter number
● IND (2nd word)
– Parameter index
● PWE (3rd and 4th word)
– Parameter value
Function description
AK: Request and response ID
Table 6-9 Request identifiers, control → converter
AK Description Response identifier
positive negative
0 No request 0 7 / 8
1 Request parameter value 1 / 2 7 / 8
2 Change parameter value (word) 1 7 / 8
3 Change parameter value (double word) 2 7 / 8
4 Request descriptive element
1)
3 7 / 8
6
2)
Request parameter value (field)
1)
4 / 5 7 / 8
7
2)
Change parameter value (field, word)
1)
4 7 / 8
8
2)
Change parameter value (field, double word)
1)
5 7 / 8
9 Request number of field elements 6 7 / 8
1)
The required element of the parameter is specified in IND (2nd word).
2)
The following request IDs are identical: 1 ≡ 6, 2 ≡ 7 and 3 ≡ 8.
We recommend that you use identifiers 6, 7 and 8.
Advanced commissioning
6.3 Drive control
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC 213