Hitachi WJ200 Series Quick Reference Manual page 47

8.12.2 Parameter access on PROFIdrive
The request data frame to parameter access on PROFIdrive is the following.
Word offset
0
1
2
3
4
-
3i + 1
3i + 2
3i + 3
The Parameter values need to be set only for request "Change parameter". These don't need to
be set for request "Request parameter".
The response data frame to parameter access on PROFIdrive is the following.
Word offset
0
1
2
3
(*)These are same as the request.
The Parameter values exist only for request "Request parameter".
The descriptions of data are the following.
Block
Request
Header
Block
Request header
1st Parameter address
ith Parameter address
1st Parameter value
ith Parameter value
Block
Response header
1st Parameter value
ith Parameter value
Field Data type
Request Unsigned8
Reference
Request ID Unsigned8
Chapter 8 PROFINET Specification
Byte n
Request reference
Axis-No. / DO-ID
Attribute
PNU
Subindex
...
Format
Value
...
...
Byte n
Request reference
= (*)
Axis-No. / DO-ID
= (*)
Format
Value or error code
...
...
The message ID.
Unique ID of the request / response pair
for the PROFINET IO controller.
Reserved : 0x00
ID : 0x01 - 0xFF
The type of request data.
Request parameter : 0x01
Change parameter : 0x02
41
Byte n+1
Request ID
The number of parameters
= i
The number of elements
The number of values
Byte n+1
Request ID
The number of parameters
= i
The number of values
Description