Communication Details - Siemens SINAMICS S120 Function Manual
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Register 40605 contains the attribute that you use to control whether you read out the
parameter value or the parameter attribute. In the number of elements you specify how many
indices are read.
11.4.6.1
Communication details
General parameter access is realized using the Modbus register 40601 ... 40722.
Communication via DS47 is controlled using 40601. 40602 contains the function code
(always = 47 = 2F hex) and the number of the following user data. User data are contained
in registers 40603 ... 40722.
Communication overview
40601
Error codes
1 hex: Invalid Length (invalid length)
2 hex: Invalid State (in the actual inverter state, this action is not permitted)
3 hex: Invalid function code (FC ≠ 2F hex)
4 hex: Response not ready (the response has still not been issued)
5 hex: Internal Error (general system error)
Incorrect access operations to parameters via data set 47 are logged in registers
40603 ... 40722. The error codes are described in the PROFIdrive profile.
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Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Value in the register
40602
0
47
...
1
47
Request
length
[bytes]
2
47
Response
length
[bytes]
2
47
0
40603 ... 40722
...
Write values for acyclic access
Request data
Activate acyclic access
Response data
Response for a successful request
Error code
Response for an erronous request
11.4 Communication via MODBUS TCP
Explanation
Communication
867
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