Rockwell Automation FactoryTalk Historian SE DataLink 4.2 User Guide - Manual (Page 42)

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FactoryTalk Historian DataLink User Guide
34
Example:
To see the current value of the sinusoid tag, the following arguments are
set for the Current Value function:
Tagname = sinusoid
time at left
The resulting function array appears as:
Archive Value
Retrieves a FactoryTalk Historian point value, or evaluates an expression
corresponding to a specified time stamp.
Required
Arguments
Tagname or Expression
Timestamp
Timestamp The time reference used to retrieve the archive value from
FactoryTalk Historian, which can be a fixed
time value (page 21) or
expressed relative to the current time.