Service and maintenance
7.7 Troubleshooting with the PROFIBUS DP
Control Units CU240S
7-12 Operating Instructions, 11/2006, A5E00766042B AA
Table 7-5 Parameter accessing error numbers
Number Cause Remedy
0 … 199: Parameter access has been converted to a PKW request. Error detected in the
inverter. Additional information is in r2054.05 and r2054.06: Parameter number,
index word
0 Parameter number does not exist Check data block number
1 Parameter number cannot be modified --
2 Minimum/maximum not reached or exceeded --
3 Sub-index does not exist Check data block offset
4 Access of single value with array identifier Set data block offset = 0
5 Access to word with double word request or vice
versa
Use correct data type
(e.g. INT for word, DINT for
double word)
6 Setting not allowed (resetting only) --
7 Descriptive element cannot be modified --
11 No status as master control --
12 Key word missing --
17 Request cannot be processed due to operating
state
--
101 Parameter number currently deactivated --
102 Channel not wide enough --
104 Illegal parameter value --
106 Request not implemented --
200/201 Modified minimum or maximum not reached or
exceeded.
Minimum or maximum can be
further limited in operation
240 … 249: Parameter access is incorrectly formatted. Error detected on the PROFIBUS DP.
Additional information in r2054.05 and r2054.06: Parameter number or S7 data block
number, sub-index or S7 data block offset.
240 Error in variable address (no additional
information)
Legal: "Data block" area
241 Data block number illegally formatted Legal: 1 … 31999
242 Data block offset illegally formatted Legal: 0 … 116
243 Illegal "type" Legal: CHAR, BITE, INT,
WORD, INT, DWORD, REAL
244 Illegal "Number of elements" on accessing
parameter value
Legal: Effectively 2 or 4 bytes
248 Illegal text/description modification --
249 Inconsistency in write request: "Type" and
"Number of elements" does not match "Data type"
and "Data length"
Error in communication device
250: Parameter access has been converted to a PKW request. Response from inverter is
seen as incorrect. Error detected on the PROFIBUS DP. Additional information can
be seen in r2054.05 and r2054.06.
250 PKW response does not match request Error in the inverter
251: Error detected on the PROFIBUS DP; no additional information
251 Response too long for response telegram Error in communication device
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