ABB FSPS-21 - Example 3: Reading a Profidrive Parameter

90 PROFINET IO – Communication protocol
DP
header
01 01 B0 2F 04 08 02 01 02
DP
trailer
DP-V1 Response
PROFIdrive V3
Parameter Channel
Slot number
Subslot number
Index
Data length
Request reference (mirrored)
Response ID
Drive object ID (mirrored)
Number of parameters
Write_param_1202_2008_2.pdf
Example 3: Reading a PROFIdrive parameter
In this example, PROFIdrive parameter 919 (397h) is used to read the device system number
of the slave, which is the product code of the drive.
• DP-V1 Write request (Reading a PROFIdrive parameter):
PROFINET IO – Communication protocol 83
For more information on the above function blocks, see document
Communication Function Blocks for PROFIBUS DP and
PROFINET IO v2.0 available at www.profibus.com
.
 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 75.
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
DP-V1_Write_request_1.pdf
• DP-V1 Read response:
PROFINET IO – Communication protocol 103