Siemens SINAMICS G150 Operating Instructions Manual page 326

Operation
6.7 Communication according to PROFIdrive
Table 6- 19 Structure of the parameter response
Parameter response
Values for Response header
read access
only
1st parameter value(s)
Error values
for negative
response only
...
nth parameter value(s)
Description of fields in the parameter request and response
Table 6- 20 Fields in the parameter request and response
Field
Request reference
Request ID
Response ID
Drive object
number
Number of parameters
326
Request reference mirrored
Axis mirrored
Format
Values or error values
...
Format
Values or error values
...
Data type
Unsigned8
Unique identification of the request/response pair for the master. The master changes the
request reference with each new request. The slave mirrors the request reference in its
response.
Unsigned8
Specifies the type of request.
In the case of a write request, the changes are made in a volatile memory (RAM). A save
operation is needed in order to transfer the modified data to the non-volatile memory
(p0971, p0977).
Unsigned8
Mirrors the request ID and specifies whether request execution was positive or negative.
Negative means:
Cannot execute part or all of request.
The error values are transferred instead of the values for each subresponse.
Unsigned8
Setting for the drive object number of a drive unit with more than one drive object. Different
drive objects with separate parameter number ranges can be accessed via the same DPV1
connection.
Unsigned8
Defines the number of following areas for the parameter address and/or parameter value
for multi-parameter requests.
The number of parameters = 1 for single requests.
Response ID
Number of parameters
Number of values
Number of values
Values
0x01 ... 0xFF
0x01 Read job
0x02 Write job
0x01 Read job(+)
0x02 Write job(+)
0x81 Read job(-)
0x82 Write job(-)
0x00 ... 0xFF Number
0x01 ... 0x27 No. 1 ... 39
Limited by DPV1 telegram length
Operating Instructions, 07/2016, A5E03347396A
Offset
0
2
4
6
Comment
Converter cabinet units