ABB FPBA-01 PROFIBUS DP, Руководство пользователя

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142 Communication protocol

Parameter data transfer examples (DP-V0)
Note: Only the ‘data unit’ part of the telegram is presented in the
examples. See section PROFIBUS SD2 telegram for Default SAP
(0) and SAP 58-62 on page 121 .
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.
Req
D
P
h
ead
er 6
0
5
4 0
B 0
0 0
0 0
0 0
0 0
0 0
4 7
F 3
4 1
5 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0
DP tr
aile
r
Resp 4
0 5
4 0
B 0
0 0
0 0
0 0
0 6
4 0
3 3
7 3
4 1
5 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0
CW REF PZD3 PZD4 PZD5 PZD6
Request (Read parameter value [array])
Parameter Number
Subindex
1)
SW ACT PZD3 PZD4 PZD5 PZD6
Parameter Value (100 decimal)
Subindex
1)
Parameter Number
Response (Read parameter value [array])
1)
2nd byte reserve
d