Siemens SINAMICS V90 - Acyclic Communication

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SINAMICS V-ASSISTANT Online Help
Operating Manual, 04/2017, A5E36618042-003
147
4.6.2.2
Acyclic communication
The SINAMICS V90 servo drive supports acyclic communication via data set 47.
The maximum data length per request is 240 bytes.
Note
Values in italics
Values in italics in the following tables m
ean that you have to adjust these values for a
specific request.
Data block setting
Reading parameter values
The table below formats a request to read parameters.
Data block
Byte n
Bytes n + 1
n
Header
Reference 00 hex ... FF hex
01 hex: Read job
0
02 hex (ID of drive objects, at V90 always = 2)
Number of parameters (m)
2
Address, parameter 1
Attribute
10 hex:
Parameter value
Number of the indices
00 hex ... EA hex
(For parameters without index: 00 hex)
4
Parameter number 0001 hex ... FFFF hex
6
Number of the 1st Index
0000 hex ... FFFF hex
(for parameters without index: 0000 hex)
8
…
…
Address, parameter 2
…
…
…
…
…
Address, parameter m
…
…
The table below formats the drive response to a read request.
Data block
Byte n
Bytes n + 1
n
Header
Reference
(identical to a read request)
01 hex
: Drive has executed the read request.
81 hex
: Drive was not able to completely
execute the read request.
0
02 hex
(ID of drive objects, at V90 always = 2)
Number of parameters (m)
(identical to the read request)
2