IFM Electronic AL1122 - Page 101

101
ifm Operating Instructions IO-Link Master with EtherNet/IP interface StandardLine 8 Ports IP 65 / IP 67 (AL1122) 2017-05-31
Appendix
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Write_ISDU
23111
With Write_ISDU, the parameters of a connected IO-Link device can be changed.
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Write Request
23703
Attribute determines the IO-Link port to which the IO-Link device is connected. The area "User
Specific Service Data" contains the IO-Link index, the IO-Link sub-index of the IO-Link object whose
value is to be changed. It is followed, bit by bit, by the value that is to be assigned to the parameter.
CIP format
Data type
MSG Config
IO-Link mapping
Class
UINT
0x80
IO-Link acyclic access
Instance
UINT
0x1
IO-Link master
Attribute
USINT
0x01...0x08
Port number
Service code ID
USINT
0x4C
Write Request (ISDU_Write)
User specific service data
UINT
Index
IO-Link ISDU object index
USINT
Subindex
IO-Link ISDU object sub-index
USINT
e.g. 0xAB
IO-Link ISDU data (byte 0)
USINT
e.g. 0xBC
IO-Link ISDU data (byte 1)
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Write response
23115
 Positive response
If the service has been executed successfully (Error Code = 0), the area "User Specific Data" stays
empty The answer has the following format:
CIP format
Data type
MSG Config
IO-Link mapping
Class
UINT
0x80
IO-Link acyclic access
Instance
UINT
0x01
IO-Link master
Attribute
USINT
0x01...0x08
Port number
Service code ID
USINT
0x4C
Service "ISDU_Write"
Error code
USINT
0
--
Extended error code
USINT
0
--