Structure Of Orders And Responses - Siemens Sinamics S120 Function Manual

● Transfer of different parameters in one access (multiple parameter request).
● Transfer of complete arrays or part of an array possible.
● Only one parameter request is processed at a time (no pipelining).
● A parameter request/response must fit into a data set (max. 240 bytes).
● The task or response header are user data.
10.1.4.2

Structure of orders and responses

Structure of parameter request and parameter response
Parameter request
Values for Request header
write access
only
1. parameter address
...
nth parameter address
1. parameter value(s)
...
nth parameter value(s)
Parameter response
Values for Response header
read access
only
1. parameter value(s)
Error values
for negative
response only
...
nth parameter value(s)
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
10.1 Communication according to PROFIdrive
Request reference
Axis
Attribute
Parameter number
Subindex
Attribute
Parameter number
Subindex
Format
Values
...
Format
Values
...
Request reference mirrored
Axis mirrored
Format
Values or error values
...
Format
Values or error values
...
Communication
Request ID
No. of parameters
No. of elements
No. of elements
No. of values
No. of values
Response ID
No. of parameters
No. of values
No. of values
Offset
0
2
4
6
8
Offset
0
2
4
6
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