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Connection to a fieldbus
6.3 Communication via PROFIBUS
Inverter with CU240B-2 and CU240E-2 Control Units
120
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
Table 6- 15 Error 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 achieved or
exceeded
–
3
Wrong subindex
–
4
No field
An individual parameter was addressed
with a field request and subindex > 0
5
Wrong parameter type / wrong data type
Confusion of word and double word
6
Setting is not permitted (only resetting)
–
7
The descriptive element cannot be changed Description cannot be changed
11
Not in the "master control" mode
Change request without "master control"
mode (see P0927)
12
Keyword missing
–
17
Request cannot be processed on account of
the operating state
The current inverter status is not
compatible with the received request
20
Illegal value
Modification access with a value which is
within the value limits but which is illegal for
other permanent reasons (parameter with
defined individual values)
101
Parameter number is currently deactivated
Dependent on the operating state of the
inverter
102
Channel width is insufficient
Communication channel is too small for
response
104
Illegal parameter value
The parameter can only assume certain
values.
106
Request not included / task is not supported After request ID 5, 10, 15
107
No write access with enabled controller
The operating state of the inverter prevents
a parameter change
200/201 Changed minimum/maximum not achieved
or exceeded
The maximum or minimum can be limited
further during operation.
204
The available access authorization does not
cover parameter changes.
–