Rockwell-automation FactoryTalk Historian SE DataLink 4.2 User Guide Instrukcja Użytkownika Pobierz pdf (Strona 147)

9 ● FactoryTalk Historian DataLink Function Reference

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139

sampled at the combined compressed events of cdf144 and cdt158.

The minpctgood is 50 percent so result will only be displayed if

percent good is 50 percent or greater. The percent good is returned next to

the total.

PITimeFilter()

Returns the amount of time over specified intervals for which a

FactoryTalk Historian point expression evaluates as true, using the

following syntax:

PITimeFilter(expression, stime, etime, interval, timeunit,

outcode, PIServer)

Arguments

Argument

Explanation

expression (string)

A FactoryTalk Historian calculation expression.

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 evaluations (in FactoryTalk Historian time

format).

timeunit (string)

Time unit of the calculated result (in FactoryTalk Historian time

format).

outcode (integer)

An ouput code, either 0, 1, 2, 4, 5, 6, or 7, and not 3.

PIServer (string)

The target FactoryTalk Historian server.

Returns

Outcode

Column 1

Column 2

Calculated data

Time stamps

Calculated data

1 2 ... 142 143 144 145 146 147 148 149 150 151 152 ... 163 164

Brak uwag

Rockwell-automation FactoryTalk Historian SE DataLink 4.2 User Guide Instrukcja Użytkownika Strona 147