Using absolute and relative references, How relative references are resolved – Rockwell Automation FactoryTalk View Site Edition Users Guide User Manual

Page 651

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A

F

ACTORY

T

ALK

V

IEW

COMMANDS

A–5

• •

Commands that run wherever they are issued

These commands run wherever they are issued. For example, if one of these commands is
issued at the FactoryTalk View SE Client, it runs at the client.

If you are using Windows 7 Professional, Windows Vista or Windows Server
2008, the AppStart command should not be used with interactive actions that
use Events.

Using absolute and relative references

You can specify several command parameters using either absolute or relative references.
Relative references work like file names. Absolute references work like file paths.

A relative reference is a reference to an application component, excluding its path. The
component’s path is determined from the context in which the component’s name is
specified.

An absolute reference is a reference to an application component, including its path.

For example:

/MixingArea::IngredientDisplay

is an absolute reference to a graphic display

called IngredientDisplay in the area called MixingArea.

IngredientDisplay

is a relative reference to a graphic display called

IngredientDisplay in the current area.

In local applications you only need to use relative references.

How relative references are resolved

You only need to understand how relative references are resolved when you are creating
network distributed applications. If you are creating network station or local station
applications, you can skip this section.

Before FactoryTalk View can perform an action on a component that is specified using a
relative reference, the relative reference must be resolved. To do this FactoryTalk View
converts the relative reference to an absolute reference.

= (Equal)

Beep

Ramp

AlarmLogRemark

DDEExecute

Remark

AppAbort

If

Set

AppActivate

Pause

Toggle

AppStart

PlayWave

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