Rockwell Automation FactoryTalk View Site Edition Users Guide - Manual (Page 207)

10 • W ORKING WITH TAGS
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To delete a tag
1. In the Tags editor, find and select the tag you want to delete.
2. From the Edit menu, select Delete.
You can also click the Delete button on the editor’s toolbar.
Selecting a data source for an HMI tag
The data source for an HMI tag can be an external device, or FactoryTalk View.
Getting HMI tag data from a device
An HMI tag with device as its data source receives its data from a source external to
FactoryTalk View. The data can come from:
 Allen-Bradley or SoftLogix 5 programmable controllers through RSLinx.
 Network devices through an OPC or DDE data server.
 Another Windows program through an OPC or DDE data server.
For information about setting up OPC communications, see Chapter 9, Setting up
communications.
For information about DDE communications, see Appendix B, Setting up DDE
communications for HMI tags.
To create a device tag
1. In the form section of the Tags editor, click Device.
2. In the Address box, type the name of the data server tag or DDE item.
To find and select a tag’s address, click the Browse button.
Addressing syntax for OPC tags
The syntax for OPC tag addresses is:
[AccessPath]Address
or
::[AccessPath]Address
where :: is required for addresses that contain an initial colon ( : ) .
Delete tags carefully. Once you click Delete, the tag is deleted. There is no confirmation
message, and you cannot undo the deletion.