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RSView Supervisory Edition Installation Guide

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The home area<br />

The home area is the area in which a component (for example, a<br />

graphic display) is located. The home area is relevant only for<br />

distributed applications.<br />

For example, if you create a graphic display in the Cooling area, and add<br />

a relative reference to a tag (for example, FanStart), <strong>RSView</strong> looks for<br />

the tag in the home area of the graphic display (Cooling). If the tag does<br />

not belong to a data server or HMI server in the home area, an error<br />

will occur when the display runs.<br />

If the tags you select are in the home area, the Tag Browser<br />

automatically uses relative references. If the tags are not in the home<br />

area, the Tag Browser uses absolute references.<br />

The home area appears<br />

in bold type.<br />

Logging tag values<br />

Any tag value can be logged by the <strong>RSView</strong> data logger. The data logger<br />

uses data log models to determine which values to log. For a tag to be<br />

polled and its values logged by the data logger, the tag needs to be<br />

included in a data log model, and the model needs to be started at run<br />

time. For details, see Help, or Chapter 13, Using data logging.<br />

8–16 <strong>RSView</strong> <strong>Supervisory</strong> <strong>Edition</strong> User’s <strong>Guide</strong>

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