Operating instructions

Functions
5.11 Operation in fieldbus systems
CU240S and CU240E Control Units, FW 3.2
Operating Instructions, 03/2009, A5E02440075B AA
179
The meaning of the request ID for request telegrams (master → inverter) is explained in the
following table.
Table 5- 79 Request ID (master → inverter)
Response
ID
Request
ID
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 (second word).
2) The required element of the indexed parameter is specified in IND (second word).
The meaning of the response ID for response telegrams (inverter → master) is explained in
the following table. The request ID determines which response identifiers are possible.
Table 5- 80 Response ID (inverter → master)
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 fault number)
8 No master controller mode / no authorization to change parameters of the
PARAMETER CHANNEL interface
1) The required element of the parameter description is specified in IND (second word).
2) The required element of the indexed parameter is specified in IND (second word).