Rockwell-automation FactoryTalk Historian SE DataLink 4.2 User Guide Instrukcja Użytkownika Pobierz pdf (Strona 140)

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FactoryTalk Historian DataLink User Guide

132

PICalcDat()

Retrieves calculated FactoryTalk Historian point values using the

following syntax:

PICalcDat(tagname, stime, etime, interval, mode, cfactor,

outcode, PIServer)

PICalcDat() is generated only by the Calculated Data dialog box in

XP-2003

versions.

2007

versions use PIAdvCalcDat().

Arguments

Argument

Explanation

tagname (string)

The tag name or names matching the desired FactoryTalk Historian

points for calculation.

stime (string)

The start time for the range of calculation (in FactoryTalk Historian

time format).

etime (string)

The end time (in FactoryTalk Historian time format).

interval (string)

The interval between calculated values (in FactoryTalk Historian time

format).

mode (string)

The type of calculation to be used to compute point values.

cfactor (number)

The time unit of flow for the source tag, required for Total

calculations.

outcode (integer)

An ouput code, 0-7.

PIServer (string)

The target FactoryTalk Historian server.

Returns

The output code (page 104) argument affects the output as follows:

 0 produces calculated values along a column.

 1 produces time stamps and values along 2 columns.

 2 produces calculated values along a row.

 3 produces time stamps and values along 2 rows.

1 2 ... 135 136 137 138 139 140 141 142 143 144 145 ... 163 164

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Rockwell-automation FactoryTalk Historian SE DataLink 4.2 User Guide Instrukcja Użytkownika Strona 140