Addressing The Objects In Io-Link Devices Via Aoe; Aoe - Transfer Of Ads Data In The Mailbox Of The Ethercatframe; Table 82 Assignment Of Aoe Port Numbers To Io-Link Ports; Table 83 Indexoffset Parameter For Addressing The Io-Link Object - WAGO 765-1205/100-000 Product Manual

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AoE NetId
The EtherCAT master assigns an AoE NetId to each EtherCAT slave in its network,
through which the EtherCAT slave can be identified as a sender or receiver of AoE pack-
ets.
The AoE NetId consists of six bytes. It can be freely chosen and must be unique within
the AoE network. Example of an AoE NetId: 174.15.18.10.2.1.
The AoE NetId is a logical specification and not an IP address, but may include the IP ad-
dress for easier identification.
Only the EtherCAT communication uses the AoE NetId of the EtherCAT slave.
For EtherCAT slaves with integrated IO-Link functionality like the EtherCAT IO-Link gate-
way, the EtherCAT master additionally assigns a second AoE NetId to the EtherCAT
slave; only the IO-Link communication uses this.

14.1.1.2 Addressing the Objects in IO-Link Devices via AoE

In AoE, the following applies for addressing the objects of connected IO-Link devices:
• For addressing, AoE uses the parameters PortNumber, IndexGroup and IndexOffset
(32 bits each).
• The assignment of the port number to the IO-Link port is shown in the following table:
Port Number
0x1001
0x1002
0x1003
...
0x1008
• IndexGroup has the fixed value 0xF302.
• IndexOffset specifies the index and the subindex of the object of the IO-Link device
connected to the IO-Link master port. The IndexOffset parameter contains the index
and subindex.
Bits
Bits 16 ... 31
Bits 8 ... 15
Bits 0 ... 7
14.1.2 AoE – Transfer of ADS Data in the Mailbox of the EtherCATFrame
EtherCAT offers the option of integrating other protocols via a mailbox. The data of these
protocols is written into the mailbox area in the EtherCAT frame.
With AoE, protocol data of the ADS protocol is transmitted in the mailbox area. ADS is in-
tegrated into the EtherCAT frame in this way, as the following figure shows.
Product manual | Version: 2.0.0
8DIO FLD EC DC 24V 2.0A
Table 82: Assignment of AoE Port Numbers to IO-Link Ports
IO-Link Port
Port 1
Port 2
Port 3
...
Port 8
Table 83: IndexOffset Parameter for Addressing the IO-Link Object
Contents
Index (16 bit value)
Fixed value 0
Subindex (8 bit value)
Appendix
115