National Instruments BridgeVIEW User Manual

Page 179

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Chapter 7

Advanced Application Topics

7-11

Run the VI. Because the Product tag is configured to go into HI alarm
when it exceeds a value of 800, you can see that the tank color is blue
while the tag value is below 800. It changes from blue to red when the
value goes above 800. Leave this VI running.

To change the HI alarm limit of Product dynamically, open a new VI.
Drop the Set Tag Attribute VI from the Functions»Tag Attributes
palette.

Using the wiring tool, create constants for the group/tag names, tag
attribute, and value inputs.

Select Product for the group/tag names input, change tag attribute
from the default

HI Limit

, and wire in

500.00

for the

value as shown in the following illustration.