Omron CJ1W-EIP21 用户手册

Tag data links enable cyclic data exchanges on an EtherNet/IP network
between PLCs or between PLCs and another device. I/O memory addresses
(e.g., in the CIO or DM Area) and symbols can be assigned to tags. The set-
tings for tag data links are made using the Network Configurator. Refer to 6-2
Setting Tag Data Links for information on how to make the settings. 

Symbols can be used in tags only for the CJ2H-CPU6

@

-EIP and CJ2M-

CPU3

@

. If you are using a CJ1W-EIP21 or CS1W-EIP21 EtherNet/IP Unit that

is mounted to a CJ2H-CPU6

@

 or any CPU Unit other than the CJ2H-CPU6

@

-

EIP, use I/O memory addresses to set the tag data links. 

With tag data links, one node requests the opening of a communications line
called a connection to exchange data with another node. The node that
requests opening the connection is called the originator, and the node that
receives the request is called the target. 

For communications between PLCs, the connection information is set in the
EtherNet/IP Unit or built-in EtherNet/IP port of the PLC that receives data (i.e.,
the originator). 

For communications between a PLC and an I/O device, the connection infor-
mation is set in the EtherNet/IP Unit or built-in EtherNet/IP port that is the orig-
inator. If an I/O device is used, the Network Configurator must have an EDS
file installed that includes connection information for the I/O device. Refer to
Appendix F EDS File Management for the installation procedure. 

The output words and input words for each node for which data is exchanged
must be set in the connection information. These words are called the output
tag set and input tag set. A tag set must specify at least one tag. The size of
the data for data exchange is the total size of the tags included in the tag set.
The size of the output tag set and the size of the input tag set must match. 

In this manual, set connection information is called tag data link parameters.
The following section describes how to set tag data links using the Network
Configurator. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input tags

 

Output tags

 

Input tags

 

Output tags

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DM00100 
Var-In 
DM20000 

 

 

DM00200 
Var-Out 
DM20100 

 

 

Var-Out1 
Var-Out2 
Var-Out3 

 

 

 

DM00200 
WR300 
DM20100 

 

 

I/O refreshed.

Inputs

Tag set name: ABC

CPU Unit

CPU Unit

I/O refreshed.

I/O refreshed.

I/O refreshed.

EtherNet/IP Unit 

EtherNet/IP Unit 

Originator

Originator

Outputs

Tag set name: XYZ

PLC status

PLC status

Connection

Connection

Tag set name: OUT1

Outputs

Target

Target

Inputs

Tag set name: IN1

Ethernet (EtherNet/IP)

Var-Out1(DM0)

 

Var-Out2(DM100)

 

Var-Out3(DM200)

 

DM00200

 

WR300

 

DM20100

 

DM00100

 

Var-In(WR200)

 

DM20000

 

DM00200

 

Var-Out(WR300)

 

DM20100