Isdu Write Service; Table 90 Structure Of The Aoe Data Area (Aoe Read Response In Case Of Error); Table 91 Structure Of The Aoe Data Area For An Isdu Write Request (Aoe Write Request) - WAGO 765-1205/100-000 Product Manual

Appendix
The response has the following structure:
Offset
0
4

14.1.5 ISDU Write Service

Parameter data is written to an object of an IO-Link device via the AoE mailbox protocol
and IO-Link ISDU services.
The procedure is as follows:
• The EtherCAT master uses the AoE write command and writes the ISDU write request
into the AoE mailbox header, indicating the index and subindex. This information ad-
dresses the port and the object of the IO-Link device.
• After the IO-Link device has sent the IO-Link master the response to the ISDU write re-
quest, the EtherCAT slave sends the AoE response to the EtherCAT master.
The following figure shows the process of writing to an IO-Link device using the AoE
Write command:
(1) AoE Write Request: Packet Structure for an ISDU Write Request
Addressing is done in AoE via:
• AoE port number (in AoE header)
• IndexGroup (in the AoE data area)
• IndexOffset (in the AoE data area)
The structure of the AoE mailbox frame for the transmission of the ISDU write request
(number (1) in figure "ISDU Write Process(EtherCAT)") is as follows:
• The structure of the AoE mailbox frame corresponds to the description in
of the Structure of the AoE Frame
• The AoE header corresponds to the description in
the AoE Frame
• The AoE data area has the following structure for an ISDU write request:
Offset
0
120 Product manual | Version: 2.0.0
8DIO FLD EC DC 24V 2.0A
Table 90: Structure of the AoE Data Area (AoE Read Response in Case of Error)
Parametername Type
Result Unsigned32
Length Unsigned32
[} 116].
Table 91: Structure of the AoE Data Area for an ISDU Write Request (AoE Write Request)
Parametername Type
IndexGroup Unsigned32
Value Description
Value not Contains the ADS error number
equal to 0
0 Length of the data that has been read
(0 bytes)
Figure 43: ISDU Write Process (EtherCAT)
[} 116].
8 Overview of the Structure of
Value Description
0xF302 IndexGroup of the data to be written (fixed
value).
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8 Overview