ABB FENA-01, User Manual

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PROFINET IO – Communication protocol 339
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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 block part of the request is presented in the
examples. See section Read and write blocks on page 331 .
Example 1a: Reading a drive parameter (array
element)
Drive parameters are addressed so that the drive parameter group
corresponds to the Parameter index (PNU), and the drive
parameter number within the group corresponds to the Subindex
(IND). In the following example, a value is read from drive
parameter 12.04 (0C.04h).
•
DP-V1 Write request (Read parameter value):
DP
header
01 01 B0 2F 0A 05 01 01 01 10 01 00 0C 00 04
DP trailer
DP-V1 Command PROFIdrive V3 Parameter Channel
Slot number
Subslot number
Index
Data length
Request reference
Request ID (01h= Request Parameter
Drive object ID
Number of parameters
Attribute (10h = Value)
Number of elements
Parameter index
Subindex