Siemens SINAMICS G120 Operations Instructions Page 114

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Configuring the fieldbus
6.1 Communication via PROFIBUS
Inverter with CU240B-2 and CU240E-2 Control Units
112 Operating Instructions, 01/2011, FW 4.4, A5E02299792B AB
The meaning of the request identifier for request telegrams (control → inverter) is explained
in the following table.
Table 6- 10 Request identifier (control → inverter)
Response
identifier
Request
identifier
Description
positive negative
0 No request 0 7 / 8
1 Request parameter value 1 / 2
2 Change parameter value (word) 1 |
3 Change parameter value (double word) 2 |
4 Request descriptive element
1)
3 |
6 Request parameter value (field)
1)
4 / 5 |
7 Change parameter value (field, word)
1)
4 |
8 Change parameter value (field, double word)
1)
5 |
9 Request number of field elements 6 |
11 Change parameter value (field, double word) and save in EEPROM
2)
5 |
12 Change parameter value (field, word) and save in EEPROM
2)
4 |
13 Change parameter value (double word) and save in EEPROM 2
14 Change parameter value (word) and save in EEPROM 1 7 / 8
1) The required element of the parameter description is specified in IND (2nd word).
2) The required element of the indexed parameter is specified in IND (2nd word).
The meaning of the response identifier for response telegrams (inverter → control) is
explained in the following table. The request identifier determines which response identifiers
are possible.
Table 6- 11 Response identifier (inverter → control)
Response
identifier
Description
0 No response
1 Transfer parameter value (word)
2 Transfer parameter value (double word)
3 Transfer descriptive element
1)
4 Transfer parameter value (field, word)
2)
5 Transfer parameter value (field, double word)
2)
6 Transfer number of field elements
7 Request cannot be processed, task cannot be executed (with error number)
8 No master controller status / no authorization to change parameters of the parameter
channel interface
1) The required element of the parameter description is specified in IND (2nd word).
2) The required element of the indexed parameter is specified in IND (2nd word).
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