Operating instructions

Functions
5.11 Operation in fieldbus systems
CU240S and CU240E Control Units, FW 3.2
158 Operating Instructions, 03/2009, A5E02440075B AA
If the response ID is 7 (request cannot be processed), one of the fault numbers listed in the
following table is stored in parameter value 2 (PWE2).
Table 5- 73 Fault numbers for the response "request cannot be processed"
No. Description Comments
0 Impermissible parameter number (PNU) Parameter does not exist
1 Parameter value cannot be changed The parameter can only be read
2 Minimum/maximum not reached or exceeded –
3 Incorrect subindex –
4 No field An individual parameter was
addressed with a field request and
subindex > 0
5 Incorrect parameter type / incorrect data type Word and double word mixed up
6 Set not permitted (reset only) –
7 The descriptive element cannot be changed Description can never be changed
11 Not in "master controller" mode Change request without "master
controller" mode (see P0927)
12 Keyword missing –
17 Request cannot be processed due to the
operating state
The current inverter operating state is
not compatible with the request
received.
101 Parameter number currently deactivated Dependent on the operating state of
the inverter
102 Channel width is insufficient Communication channel is too small
for response
104 Impermissible parameter value The parameter only permits certain
values.
106 Request not included / task not supported After request ID 5, 10, 15
200/201 Modified mininum/maximum not reached or
exceeded
The maximum or minimum can be
limited further during operation.
204 The available access authorization does not
cover parameter changes.
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