DP-V1 communication
88
Parameter data transfer examples
The following examples show how parameter data is transferred
using the DP-V1 mechanisms READ and WRITE.
Note: Only the “Data unit” part of the SD2 telegram is presented in
the examples. See Figure 14 on page 80.
Example 1a: Reading a drive parameter
To determine the parameter number and subindex for drive
parameter reading, multiply the parameter number by one
hundred and then convert it to hexadecimal. The low byte is the
subindex (IND), and the high byte is the parameter index (PNU).
For example, drive parameter number 12.04 corresponds to 12.04
× 100 = 1204 = 4B4h.
DP-V1 Write request (Read parameter value):
DP
header
5F 01 2F 0A 05 01 01 01 10 01 00 04 00 B4
DP
trailer
DP-V1 Command PROFIdrive V3 Parameter Channel
Subindex
Parameter index
Number of elements
Attribute (10h = Value)
Number of parameters
Axis
Request ID (01h = Request Parameter)
Request reference
Data length
Index
Slot number
Function number
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