PROFINET IO – Communication protocol 347
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):
• DP-V1 Read response:
The slave returns the product code of the drive (20Bh in this
example).
DP
header
01 01 B0 2F 0A 09 01 01 01 10 00 03 97 00 00
DP
trailer
DP-V1 Command PROFIdrive V3 Parameter Channel
DP
header
01 01 B0 2F 0A 09 01 01 01 07 01 00 00 02 0B
DP
trailer
DP-V1 Response 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
Slot number
Subslot number
Index
Data length
Response reference (mirrored)
Drive object ID
Response ID
Number of parameters
Format (42h = Word)
Number of values
Value of error
values