Ethernet/Ip Communications Protocol; Data Exchange With Ethernet/Ip - Omron V680S-HMD64-EIP User Manual

Section 7
Host Communications Specifications

EtherNet/IP Communications Protocol

Data Exchange with Ethernet/IP

Data is exchanged cyclically between Ethernet devices on the EtherNet/IP network using tag data links
as shown below.
 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 request is called the
target. The host device (PLC) and Reader/Writer function as the originator and 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 in the host device (PLC) for tags.
A group of tags consists of an output tag set and an input tag set.
RFID System
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User's Manual
(EtherNet/IP TM )
Originator
PLC
Output tag set name:
ABC
Tag: D100
Input tag set name:
XYZ
Tag: D200
Input tag set name:
Connection
Output tag set name:
Target
Reader/Writer
Output_10
Tag: Output_10
Input_11
Tag: Input_11