Communication
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Example 4: Writing a PROFIdrive parameter (word)
In this example, current parameter settings are saved to the
FLASH memory of the drive. This is done by setting the value of
PROFIBUS Parameter 971 (3CBh) to 1.
Note that the drive always observes the Control Word (CW)
and Reference (REF) bytes. The values shown below are
examples.
Write:
Request
DP
header
23 CB 00 00 00 00 00 01 04 7F 34 15
DP
trailer
Response 13 CB 00 00 00 00 00 01 03 37 34 15
Param. Value
CW REFIND
Parameter Number (971 decimal)
Request (Parameter value write)
Response (Parameter value updated)
Parameter Number (971 decimal)
IND Param. Value SW ACT