Rockwell Automation FactoryTalk Historian SE DataLink 4.2 User Guide - Manual (Page 119)

Chapter 9
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FactoryTalk Historian DataLink
Function Reference
FactoryTalk Historian DataLink function dialog boxes (XP-2003) or task
panes (2007) (page 17) are commonly used to generate FactoryTalk
Historian DataLink functions, with the resulting function depending on the
options and arguments selected. These same functions may also be entered
directly (page 101) in the Excel formula bar.
The following complete reference to supported FactoryTalk Historian
DataLink functions groups functions by type. Each topic describes
complete syntax options, and indicates how arguments are used. In most
cases an example is also provided.
Single Value Functions
Single value functions associate a FactoryTalk Historian point with a
specific point in time, and return only one corresponding data value unless
an array of tag names are referenced.
PICurrVal()
Retrieves current FactoryTalk Historian point values from the snapshot,
using the following syntax:
PICurrVal(tagname, outcode, PIServer)