Rockwell Automation FactoryTalk Historian SE 4.0 Live Data Interface User Guide - Manual (Page 23)

Rockwell Automation Publication HSELD-UM024A-EN-E–September 2013 23
Chapter 5
Point Configuration
A FactoryTalk Historian point is the basic building block for
controlling data flow to and from the FactoryTalk Historian SE
server. A single point is configured for each measurement value that
needs to be archived.
Historian points (tags) have approximately 50 attributes. These
attributes define how data is to be collected and stored for the point.
The proper configuration of these attributes is the key to optimizing
the FactoryTalk Historian server for both data storage efficiency and
quick retrieval. Each FactoryTalk Historian interface handles
specific point attributes differently.
A tag is a label or name for a Historian point.
NOTE
The FactoryTalk Historian documentation uses the terms tag and point
to mean the same thing. An example of a tag name is:
FTLDEnt:rc:RSLinxC.secondArray000
The information presented in this chapter is necessary to define
FactoryTalk Live Data (FTLD) points for use with a FactoryTalk
Live Data server. Failing to correctly configure FactoryTalk
Historian data points will result in poor or no communication
between the interface and the FactoryTalk Live Data server. See
"Error and Informational Messages (page 51)" for more information
on errors that may occur.
The Tag field allows a maximum of 1023 characters.
Point Attributes
Length