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Example 7: Configuring the process data read from the drive
PROFIBUS Parameter 916 can be used to define which data is
read cyclically from the drive as application-specific process data.
In the example below, drive parameter 1.04 (01h.04h) is selected
to be transmitted by the drive as PZD3. The selection is in force
until it is superseded by another selection.
Subindex (IND) defines which process data word the required
data is transmitted in, and Parameter Value defines which drive
parameter is mapped to that word.
Request (Change parameter value [array])
Parameter Number (916 decimal)
Subindex (03 = PZD3)*
Parameter Value
CW
REF
PZD3
PZD4
PZD5
PZD6
DP 73 94 03 00 00 00 01 04 04 7F 34 15 00 00 00 00 00 00 00 00 DP
Resp header 43 94 03 00 00 00 01 04 03 37 34 15 00 00 00 00 00 00 00 00 trailer
Req
SW
ACT
PZD3
PZD4
PZD5
PZD6
Parameter Value
Subindex (03 = PZD3)*
Parameter Number (916 decimal)
Response (Transfer parameter value [array])
*2nd byte reserved
Subsequent response frames:
Resp
DP
DP
xx xx xx xx xx xx xx xx xx xx xx xx 00 0B xx xx xx xx xx xx
header
trailer
PZD3 (Value of drive parameter 1.04)
Communication