Operating instructions

Communication
6.1 PROFIdrive Profile V4.1
Control Units CU240S
126 Operating Instructions, 10/2007, A5E00766042B AC
Table 6-2 Response identifier (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 (array word)
2)
5 Transfer parameter value (array double word)
2)
6 Transfer number of array elements
7 Cannot process request, task cannot be executed (with error number)
8 No master control status / no parameter change rights for PARAMETER
CHANNEL interface
1) The desired element of the parameter description is specified in IND (2nd word)
2) The desired element of the indexed parameter is specified in IND (2nd word)
If the response identifier is 7 (cannot process request), then one of the fault numbers listed in
the next table will be stored in parameter value 2 (PWE2).
Table 6-3 Fault numbers for "Cannot process request" response
No. Description Remarks
0 Illegal parameter number (PNU) Parameter does not exist
1 Parameter value cannot be modified Parameter is a read-only parameter
2 Minimum/maximum not reached/exceeded –
3 Faulty subindex –
4 No array Single parameter has been accessed with
array request and subindex > 0
5 Parameter type is wrong / incorrect data
type
Mix-up between word and double word
6 Setting not allowed (resetting only) –
7 Descriptive element cannot be modified Description can never be modified
11 No status as master control Modification request without status as
master control (see P0927)
12 Key word missing –
17 Request cannot be processed due to
operating state
Current inverter status is not compatible
with the received request
101 Parameter number currently deactivated Dependent on inverter status
102 Channel not wide enough Communication channel too small for
response
104 Illegal parameter value Parameter permits only certain values
106 Request not implemented / Task not
supported
After request identifier 5, 10, 15
200/201 Modified minimum/maximum not
reached/exceeded
Minimum/maximum can be further limited in
operation
204 Available access authorization does not
cover modification of parameters
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