Introduction To Tag Data Links; Tag Data Links - Omron NY532-5400 User Manual

7 Tag Data Link Functions
7-1

Introduction to Tag Data Links

7-1-1

Tag Data Links

Tag data links enable cyclic tag data exchanges on an EtherNet/IP network between Controllers or
between Controllers and other devices. Variables are assigned to tags. The settings for tag data links
are made with the Network Configurator. Refer to 7-2 Setting Tag Data Links for information on how to
make the settings.
Additional Information
You can also use the Sysmac Studio to set the tag data links. Refer to A-2 Use the Sysmac Stu-
dio to Set the Tag Data Links (EtherNet/IP Connections) for details on setting the tag data links in
the Sysmac Studio.
With a tag data link, one node requests the connection of a communications line to exchange data with
another node. The node that requests the connection is called the originator, and the node that receives
the request is called the target.
NY-series Controller
Var_In_a
I/O refreshed. I/O refreshed.
Var_In_b
Var_In_c
Var_Out_d
Var_Out_e
I/O refreshed. I/O refreshed.
Var_Out_f
Controller status
For communications between Controllers, the connection information is set in the built-in EtherNet/IP
port of the Controller that receives (consumes) the data (i.e., the originator).
Additional Information
For communications between a Controller and an I/O device, the connection information is set in
the built-in EtherNet/IP port that is the originator. If an I/O device is used, the Network Configura-
tor must have an EDS file installed that includes connection information for the I/O device. Refer
to A-3 EDS File Management for the installation procedure.
The output words and input words for each node for which data is exchanged are 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.
7-2
Input
Connection
Tag set name: ABC
• Var_In_a
Input tags Output tags
• Var_In_b
• Var_In_c
Originator
Output
Connection
Tag set name: XYZ
• Var_Out_d
Output tags Input tags
• Var_Out_e
• Var_Out_f
Target
EtherNet/IP EtherNet/IP
NY-series Industrial Panel PC / Industrial Box PC Built-in EtherNet/IP Port User's Manual (W563)
EtherNet/IP Unit
CJ-series CPU Unit
Outputs
Tag set name: OUT1
Var-Out1(DM0)
• Var-Out1
• Var-Out2
Var-Out2(DM100)
I/O refreshed. I/O refreshed.
• Var-Out3
Var-Out3(DM200)
Target
Input
DM00200
WR300
Tag set name: IN1
I/O refreshed. I/O refreshed.
DM20100
• DM00200
• WR300
• DM20100
Controller status
Originator