Rockwell-automation FactoryTalk Historian SE DataLink 4.2 User Guide Instrukcja Użytkownika Pobierz pdf (Strona 125)

9 ● FactoryTalk Historian DataLink Function Reference

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Argument

Value

outcode (integer)

An output code.

PIServer (string)

The target FactoryTalk Historian server.

mode (string)

The method of handling values at boundaries of the time range.

Returns

Results display is determined by an output code (page 104) value.

Example:

The following retrieves compressed data points and corresponding time

stamps for the tag cdf144 starting from 1:00 a.m. to 3:00 a.m. this

morning from the default FactoryTalk Historian server with inside as

boundary type:

=PICompDat("cdf144","1:00","3:00",1,,"inside")

PICompFilDat()

Retrieves filtered FactoryTalk Historian point values corresponding to a

specified time range, using the following syntax:

PICompFilDat(tagname, stime, etime, filtexp, filtcode,

outcode, PIServer, mode)

Arguments

Argument

Value

tagname (string)

The tag name or names matching the desired FactoryTalk Historian

points.

stime (string)

The start time for the range of retrieved values (in FactoryTalk

Historian time format).

etime (string)

The end time for the range (in FactoryTalk Historian time format).

filtexp (string)

The filter expression used to filter results.

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Rockwell-automation FactoryTalk Historian SE DataLink 4.2 User Guide Instrukcja Użytkownika Strona 125