Omron CJ1W-EIP21 - 10-2010 Operation Manual page 145

Overview of Tag Data Links
Number of Tags in Tag
Sets
One tag each
(Each tag is set using a text
string of the network symbol
or I/O memory address.)
Originator device
Connection Information
· Target IP address: #
· Originator tag set: SP1_IN
· Target tag set: SP1_OUT
· Packet interval (RPI)
Tag Set (Input Tags)
Tag set name: SP1_IN
PLC status
Tag a
Tag b
Tag c
Tag g
There are both input and output tag sets. Each tag set can contain only input
tags or only output tags. The same input tag cannot be included in more than
one input tag set.
Each tag set can contain one or more tags.
■ Tag Sets with Only One Tag
With basic Network Configurator procedures, each tag set contains only one
tag.
CPU Unit
I/O memory
a
b
■
Tag Sets with Multiple Tags
As shown below, tags can be created in groups. Each tag set can contain up
to 8 tags totaling 640 words for the CJ2M-EIP21 (20 words for unit version
2.0) or 722 words for other CPU Units.
Tag Set (Output Tags)
Tag set name: SP1_OUT
Connection
EtherNet/IP
Tag set SP1_IN Tag set SP1_OUT
(tag a) (tag c)
Connection
Tag set SP2_OUT Tag set SP2_IN
(tag b) (tag d)
Connection
EtherNet/IP
Section 6-1
Target device
IP address: #
PLC status
Tag i
Tag ii
CPU Unit
I/O memory
c
d
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