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8. Profinet IO
Dual port ethernet option board installation manual
MN032004EN October 2017 www.eaton.com
8.3.2.4 Response header
The response header consists of 4 fields, each one is octet in size.
Table 45. Response header
Octet
number Field name Description Allowed values
1 Request reference Unique number for each request/response pair. Mirrored by the slave.
2 Response ID Defines the type of response. An error in the execution of
a request is indicated by setting bit 7 in this field.
Uses 0x01 for successful request parameter operation.
Uses 0x02 for successful change parameter operation.
Uses 0x80 to indicate that an invalid request ID was received.
Uses 0x81 for unsuccessful request parameter operation.
Uses 0x82 for unsuccessful change parameter operation.
Other values are not used.
3 Axis number Not used, should be set to 1. Mirrored by the slave. Mirrored by the slave.
4 Requested number
of parameters
The number of parameters affected by the request. Number of parameters in the response.
Mirrored from the request.
8.3.2.5 Parameter values
Parameter values are included in the response only if the
request was of “Request parameter” type. For details on
the contents of this field, see Parameter value on Chapter
8.3.1.4 “Parameter value”
8.3.3 Drive parameter access using application ID
It is possible to read and write drive parameters using the
application ID number using the PNU 10001. The targeted
application ID is put into the subindex field.
8.3.4 Parameter channel examples
8.3.4.1 Request first element of PNU964 value
The following information is used for this request:
Table 46. Request first element of PNU964
Field Contents
Request reference 0x01
Request ID 0x01 = Request parameter
Axis Number 0x01
No. of Parameters 0x01
Attribute 0x10 = Value
No. of elements 0x01
Parameter Number 0x03C4 (964d)
Subindex 0x0000 (0d)
The request from the master is:
Table 47. Request from master
PROFINET
Write request header Request header Parameter address
... 0x01 0x01 0x01 0x01
0x10 0x01 0x03 0xC4 0x00
0x00
The slave responds to the write request with a PROFINET
write response header.
Table 48. Response from slave
PROFINET Write response header
...
The master reads the result of the operation from the drive
using a PROFINET read request header.
Table 49. Read request header
PROFINET Read request header
...
The slave responds to the read request:
Table 50. Read request response
PROFINET
Read response header Request header Parameter value
... 0x01 0x01 0x01 0x01 0x42 0x01 0x01 0xBA
The parameter value reveals that the format of the value is
“Word” (0x42), there is one value in the response (0x01)
and the actual value is 0x01BA.
8.3.4.2 Request all elements of PNU964 value
The following information is used for this request.
Table 51. Request all elements of PNU 964
Field Contents
Request reference 0x02
Request ID 0x01 = Request parameter
Axis Number 0x01
No. of Parameters 0x01
Attribute 0x10 = Value
No. of elements 0x06
Parameter Number 0x03C4 (964d)
Subindex 0x0000 (0d)