Communication
93
Parameter data transfer examples
Note: Only the ‘Data unit’ part of the telegram is presented in the
examples. See Figure 7 on page 73.
Example 1: Reading a drive parameter (or data set)
To determine the parameter number and subindex for drive
parameter reading, convert the drive parameter group number and
the parameter index number to hexadecimal. The index number is
the subindex (IND), and the group number is the parameter
number (PNU). For example, to read parameter 84.11 from the
drive:
84.11 = 54h.0Bh => Parameter Number = 54h, Subindex = 0Bh.
Error response:
Req
DP
header
60 54 0B 00 00 00 00 00 04 7F 34 15 00 00 00 00 00 00 00 00
DP
trailer
Resp 40 54 0B 00 00 00 00 64 03 37 34 15 00 00 00 00 00 00 00 00
Resp
DP
header
70 54 0B 00 00 00 00 03 03 37 34 15 00 00 00 00 00 00 00 00
DP
trailer
CW REF
Parameter Number
Request (Read parameter value [array])
Subindex*
PZD3 PZD4 PZD5 PZD6
SW ACT PZD3 PZD4 PZD5 PZD6
Parameter Value (100 decimal)
Parameter Number
Response (Change parameter value [array])
Subindex*
*2nd byte reserved
SW ACT PZD3 PZD4 PZD5 PZD6
Error Number (3: Erroneous subindex)
Parameter Number
Response (Negative acknowledgement)
Subindex*
*2nd byte reserved
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