Siemens SINAMICS G130 - Page 234

Operation
6.6 Communication according to PROFIdrive
Inverter chassis units
234 Operating Instructions, 07/2016, A5E00331449A
Create request
Table 6- 16 Parameter request
Parameter request
Offset
Request header
Request reference = 25 hex
Request ID = 01 hex
0 + 1
Axis = 02 hex
Number of parameters = 01 hex
2 + 3
Parameter address
Attribute = 10 hex
Number of elements = 08 hex
4 + 5
Parameter no. = 945 dec 6
Subindex = 0 dec
8
Information about the parameter request:
● Request reference:
The value is selected at random from the valid value range. The request reference
establishes the relationship between request and response.
● Request identifier:
01 hex → This identifier is required for a read request.
● Axis:
02 hex → Drive 2, fault buffer with drive- and device-specific faults
● Number of parameters:
01 hex → One parameter is read.
● Attribute:
10 hex → The parameter values are read.
● Number of elements:
08 hex → The actual fault incident with eight faults is to be read.
● Parameter number:
945 dec → p0945 (fault code) is read.
● Subindex:
0 dec → Reading starts at index 0.
Invoke request.
If STW1.3 = "1" → Initiate parameter request
Evaluate response.
Table 6- 17 Parameter response
Parameter response
Offset
Response header
Request reference mirrored = 25 hex
Response ID = 01 hex
0 + 1
Axis mirrored = 02 hex Number of parameters =
01 hex
2 + 3
Parameter value
Format = 06 hex
Number of values = 08 hex
4 + 5
1st value = 1355 dec
6
2nd value = 0 dec
8
...
...
8th value = 0 dec
20