Omron CJ2 CPU UNIT SOFTWARE User Manual

5-53
5 Understanding Programming
CJ2 CPU Unit Software User’s Manual
5-5 Symbols
5
5-5-5 Network Symbols (CJ2H-CPU6@-EIP and CJ2M-CPU3@ Only)
z Handling Network Symbols from the Outside
Symbols set as network symbols in the CPU Unit are recognized as tags from outside the PLC
(such as by a host, PT, Network Configuration Tool, or other PLCs).
z Using Network Symbols as EtherNet/IP Data Link Tags
The data in a remote PLC can be specified with tags by using EtherNet/IP tag data link communica-
tions. Set to the network symbol to Input or Output in the Network Symbol Column in the Global
Symbol Table.
Network Symbol Usage Conditions and Handling
Network Symbol Applications
CPU Unit
NS-series
PT
Host
application
Another
PLC
Tag access
(Access with network symbols using CIP
message communications or EtherNet/IP
data link communications)
Symbols table
(network symbols)
Tags
User program
Outside the CPU Unit
(e.g., host, PT, other PLC,
Network Configuration Tool)
A D100 WORD
B D200 WORD
EtherNet/IP
Example: Data link from B to A
Name: A Name: B
CJ2 CPU Unit
CJ2 CPU Unit
Node #1
Node #2
Global symbol table
Global symbol table
Name
Address Data type
Network Symbol
INPUT
OUTPUT
Name
Address Data type
Network Symbol
By using tag data link communications, the data in D200 of
the CJ2 CPU Unit at node #2 is copied to D100 of the CJ2
CPU Unit at node #1.

Omron CJ2 CPU UNIT SOFTWARE Specifications

General

Brand	Omron
Model	CJ2 CPU UNIT SOFTWARE
Category	Software
Language	English