Siemens SINAMICS G110M - Cyclic Communication

Configure fieldbus
7.5 Communications via AS-i
SINAMICS G110M Operating Instructions
156 Operating Instructions, 04/2015, FW V4.7.3, A5E31298649B AD
Code
(hex)
Explanation/meaning
Followed by
Acyclic communication - standard
10 hex Read request: Master -> slave 2 bytes: Index, length
50 hex
Read request OK: Slave -> master
Index, data
90 hex
Read request failed: Slave -> master
1 byte: Standard error code (3 hex)
11 hex
Write request: Master -> slave
Index, length, data
51 hex
Write request OK: Slave -> master
91 hex
Write request failed: Slave -> master
1 byte: Standard error code (3 hex)
Acyclic communication - manufacturer-specific
12 hex
Read request: Master -> slave
Index, length
52 hex
Read request OK: Slave -> master
Data
92 hex
Read request failed: Slave -> master
Fault object
13 hex
Write request: Master -> slave
Index, length, data
53 hex
Write request OK: Slave -> master
93 hex
Write request failed: Slave -> master
Fault object
1D hex Exchange request: Master -> slave Index, read length, write length, write
data
5D hex
Exchange request OK: Slave -> master
PKE, index, n-2 data
9D hex
Exchange request faulty: Slave -> master
Fault object
If an acyclical request cannot be executed by the inverter, it replies with one of the following
error messages.
Error message
Meaning
0
No fault
1
Invalid index
2
Incorrect length
3 Request not implemented
4 Busy (the request could not be processed completely within the time window, retry
later)
5
Last acyclical request was not confirmed
6
Invalid subindex
7 "Selective read request" command missing
7.5.5.1
Cyclic communication
Inverter -> master
The inverter cyclically transfers the data from p2051[1] and p2051[2] in four bytes to the
master. You can process these four bytes in the control as for analog data. Refer to the
documentation for the AS-i master for detailed information about access to analog data.