Rockwell Automation FactoryTalk View Site Edition Users Guide - Manual (Page 471)

17 • C REATING GRAPHIC OBJECTS
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Creating symbols
Use the Symbol tool to create an indicator that shows a monochrome image that changes
color to match the state of a process or operation. This lets the operator see the status of a
process or operation at a glance.
In the Symbol Properties dialog box, specify state values for the symbol indicator, and the
image to be shown for each state. For details about options in the Properties dialog box,
click Help.
At run time, the symbol indicator shows the state whose value matches the Indicator tag or
expression’s value.
Creating list indicators
Use the List Indicator tool to create an indicator that shows a list of states for a process or
operation, and highlights the current state.
Each state is represented by a caption in the list. This type of indicator is useful to let an
operator view the current state and also see the other possible states. For sequential
processes, the list can inform the operator about what happens next.
In the List Indicator Properties dialog box, specify state values for the list indicator. For
details about options in the Properties dialog box, click Help.
At run time, the list indicator highlights the state whose value matches the Indicator tag or
expression’s value.
Creating the different types of gauges and graphs
Gauges and graphs provide graphical representations of numeric values.
Using gauges to show limits
Gauges show numeric values in dial format. Gauges are useful for showing a value in
relation to its lower and upper limits.
For example, a temperature gauge shows the current temperature in relation to its
minimum and maximum extremes. By looking at the position of the needle on the gauge
(pointing left, up, or right), the operator can tell at a glance whether the temperature is
nearer its lower or upper limit, or nearer the middle.
Gauges are used instead of numeric displays when it’s important for the operator to
recognize an abnormal condition immediately, either from far away (when the scale on the
gauge isn’t visible), or before it is possible to make an exact reading on the gauge.
Symbol
Indicator tool
List
Indicator tool