Data Exchange with EtherNet/IP (Implicit Communications)
Data is exchanged cyclically between Ethernet devices on the EtherNet/IP network using Tag Data
Links as shown below.
Code reader
Connection
PLC
Input tag set name: B
Input tag set name:
Output_198
Output tag set name: A
Ethernet
Target
Connection
Originator
Tag: D100
Tag: D0
Tag: Output_198
Connection from
PLC to Code reader
Output tag set name:
Input_101
Tag:
Input_101
Connection from
Code reader to PLC
• Data Exchange Method
To exchange data, a connection is opened between two EtherNet/IP devices.
One of the nodes requests the connection to open a connection with a remote node.
The node that requests the connection is called the Originator
and the node that receives the re-
quest is called the Target.
• Data Exchange Memory Locations
The memory locations that are used to exchange data across a connection are specified as tags.
You can specify memory addresses or variables for tags.
A group of tags consists of an output tag set and an input tag set.
Additional Information
Message communications are used when communicating over EtherNet/IP with a PLC that
does not support Tag Data Link communications.3-1-10 Communicating with the Code Reader
with EtherNet/IP Message
on page 3 - 28
3 Controlling Operation and Data Output with Ethernet
3 - 3
V430-F Series Autofocus Multicode Reader User Manual for Communication Settings
3-1 Controlling Operation and Data Output with Ether-
Net/IP
3
3-1-1 EtherNet/IP Overview
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