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Working with tags Chapter 10
Rockwell Automation Publication VIEWSE-UM006K-EN-E
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1.
In FactoryTalk View Studio, in the Explorer window, if it doesn’t have
an HMI server, add one to the application. Each HMI server contains
one tag database.
2. In the Tags editor, create HMI device tags by mapping tag names to
data server or DDE addresses, or create HMI memory tags. For details,
see Creating, modifying, and deleting HMI tags on page 209.
3. Connect application components to the HMI tags, wherever the
application needs to use the tag values.
For example, in a FactoryTalk View SE graphic display, connect a
numeric input object to an HMI tag. At run time, tag values are passed
to the object and the operator can read from or write to the tag.
Specifying tag names where tag data is needed
Specify data server or HMI tag names in an application, wherever live tag
data is needed.
For example, you could create a graphic object that represents a vat on a
production line, and then set up the object to show the level of the vat at run
time.
To do this, attach Fill animation to the object using a tag that is updated by a
network device that monitors the vat level. At run time, the value of the tag
will determine the fill level of the graphic object.
In the Animation dialog box, to connect the tag to the fill level, you can:
Type the tag name.
Tip:
You can type the name of a tag that doesn’t exist. If you
do this, to avoid errors at run time, when you create the
tag, make sure you spell the tag
’s name consistently.
Use letters in the tag name in addition to numbers. Tag
names with over 30 numbers may not show properly in
the tag browser.
Find and select the tag in the Tag Browser.
You can browse while online and connected to a device, or you can
browse for tags from an offline file, such as a PLC program file. For
more information, see Parts of the Tag Browser on page 196.
Create the tag, if it does not exist.
Create new data server tags in the device or OPC server. For example,
in a Logix5000 device, create the tag using RSLogix 5000
programming software.