Rockwell Automation FactoryTalk Historian SE 3.0 Live Data Interface User Guide - Manual (Page 25)

Chapter 5
19
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.
Point Attributes
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.
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.