Comtrol IO-Link Master EIP-4 User Manual

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Chapter 1. EtherNet/IP Interface

IO-Link Master EtherNet/IP Reference Manual: 2000589 Rev. A

Class 1 Connection (Input and Output)-PLC and IO-Link Master Utilize an I/O Connection

1.2.2.3. Class 1 Connection (Input and Output)-PLC and IO-Link Master Utilize an I/O
Connection

Also called I/O Mode for some industrial protocols, the Class 1 connection method requires the IO-Link
Master and PLC to connect to each via an I/O connection. For EtherNet/IP, a connection over UDP must first
be created. Once the connection is established, the PLC and IO-Link Master continually exchange data at a
configurable rate.