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Configuring the fieldbus
6.1 Communication via PROFIBUS
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
116
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD
Table 6- 19 Response, if the converter was not able to completely execute the change request
Data block
Byte n
Bytes n + 1
n
Reference (identical to a change request) 82 hex
0
Header
01 hex
Number of parameters (identical to a change
request)
2
Format
40 hex: Zero (change request for this data
block executed)
44 hex: Error (change request for this data
block not executed)
Number of error values
00 hex, 01 hex or 02 hex
4
Only for "Error"- error value 1
You can find the error values in the table at the end of this section.
6
Values, parameter 1
Only if "number of error values" = 02 hex: Error value 2
Error value 1 defines whether the converter sends error value 2 and what it means.
8
Values, parameter 2
...
...
…
…
Values, parameter m
...
Diagnostics
Table 6- 20 Error value in the parameter response
Error
value 1
Meaning
00 hex
Illegal parameter number (access to a parameter that does not exist)
01 hex
Parameter value cannot be changed (change request for a parameter value that cannot be changed. Additional
diagnostics in error value 2)
02 hex
Lower or upper value limit exceeded (change request with a value outside the value limits. Additional
diagnostics in error value 2)
03 hex
Incorrect subindex (access to a subindex that does not exist. Additional diagnostics in error value 2)
04 hex
No array (access with a subindex to non-indexed parameters)
05 hex
Incorrect data type (change request with a value that does not match the data type of the parameter)
06 hex
Setting not permitted, only resetting (change request with a value not equal to 0 without permission. Additional
diagnostics in error value 2)
07 hex
Descriptive element cannot be changed (change request to a descriptive element that cannot be changed.
Additional diagnostics in error value 2)
09 hex
Description data not available (access to a description that does not exist, parameter value is available)
0B hex
No master control (change request but with no master control)
0F hex
Text array does not exist (although the parameter value is available, the access is made to a text array that
does not exist)
11 hex
Request cannot be executed due to the operating state (access is not possible for temporary reasons that are
not specified)
14 hex
Inadmissible value (change request with a value that is within the limits but which is illegal for other permanent
reasons, i.e. a parameter with defined individual values. Additional diagnostics in error value 2)
Содержание SINAMICS G120 CU230P-2
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