Rockwell Automation FactoryTalk View Site Edition Users Guide - Manual (Page 190)

F ACTORY T ALK V IEW S ITE E DITION U SER ’ S G UIDE
10–6
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 Each animation of an object (except the Touch animation) is counted as one
connection.
 Each connection in the Connections property of an object that is linked to a tag is
counted as one connection.
 Each pen configured in a Trend object is counted as one connection.
 Duplicate references of the same expression or tag connection are counted as the
additional connections. For example, one display can contain up to 3000 numeric
inputs, even if all numeric input objects refer to the same tag.
Each HMI server in an application can have up to 40,000 HMI tags set up with alarms.
Of these, 10,000 can be HMI analog tags.
About tag references
When you type a tag name, you are creating a reference to the tag.
For example, to animate a graphical representation of a fan in a graphic display, you might
refer to a tag called FanRunning, to use its value for the animation.
FactoryTalk View SE network distributed and station applications can use absolute or
relative references to tags. Local station applications can only use relative references. For
more information, see “Absolute and relative references” on page 6-7.
Absolute references
Absolute references point directly at a specific tag, by referring to the tag’s name and the
area (or areas, in the case of nested areas), in which it is located.
For example, an absolute reference to a tag called Extractor located in the Fans subarea of
the Cooling area is:
/Cooling/Fans::Extractor
Use absolute references to ensure that a specific tag in a specific location is used,
regardless of where it is referenced from.
Tags associated with embedded variables do not count towards the limit.
RSLinx Enterprise is the recommended data communications software for FactoryTalk View
applications.