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8
8.4.6.4 Response header
The response header consists of 4 fields, each one is octet in size.
Table 87. Response header
0x20
Parameter text cannot be
changed
Change request to unavailable parameter text.
0x21 Invalid request ID
If a parameter request does not have the request ID
01h or 02h, this error code is returned.
0x22...0x64 Reserved (not used)
0x65 Invalid request reference Unallowed value for request reference.
0x66 Invalid request ID
Unallowed value in request ID (neither Request Pa-
rameter nor Change Parameter).
0x67 Reserved (not used)
0x68
Invalid number of parame-
ters
Invalid number of parameters in request (0 or
greater than 39).
0x69 Invalid attribute Invalid attribute specified in request.
0x6A Reserved (not used)
0x6B Request is too short
Not enough parameter value data was transmitted
in a Change request. Alternatively, the request did
not contain a complete parameter address.
0x6C Parameter not found.
Parameter was not found or error occurred while
accessing it.
0x6D Invalid change request.
Issue with request was found and request was not
handled.
0x6E General error General error occurred.
0x6F...0xFF Reserved (not used)
Octet
number
Field name Description Allowed values
1 Request Reference
Unique number for each
request/response pair.
Mirrored by the slave.
2Response ID
Defines the type of
response. An error in the
execution of a request is
indicated by setting bit 7 in
this field.
Uses 0x01 for successful request
parameter operation.
Uses 0x02 for successful change
parameter operation.
Uses 0x80 to indicate that an invalid
request ID was received.
Uses 0x81 for unsuccessful request
parameter operation.
Uses 0x82 for unsuccessful change
parameter operation.
Other values are not used.
3 Axis Number Not used, should be set to 1. Mirrored by the slave.
4
Requested number
of parameters
The number of parameters
affected by the request.
Number of parameters in the
response. Mirrored from the request.
Table 86. PROFIdrive parameter access errors
Error number Meaning When used
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