Rockwell-automation FactoryTalk Historian SE ActiveView 3.2 User Guide Manual de usuario descargar pdf (Pagina 32)

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FactoryTalk Historian ActiveView User Guide

PI Time String

Meaning

sat-1m

11:59:00 pm last Friday

Time Interval Examples

In interval expressions, a positive or unmarked interval is based on the start

time, and a negative interval is based on the end time of a time expression.

For example, if the start time is y, the end time is t, and the interval is +5h

for a Sampled Data function, then interpolated values are generated at y,

y+5h, y+10h, y+15h, and y+20h. If the interval is -5h, the interpolated

values are generated at y+4h, y+9h, y+14h, y+19h and t.

PI Time String

Meaning

1.5h

One and one-half hours

32m

Thirty-two minutes

49s

Forty-nine seconds

+5h

Five hours added to the time beginning with

the start time.

-5h

Five hours subtracted from the time

beginning with the end time.

Change Time Range

To change the time range represented by a dynamic symbol:

1. Scroll time ranges directly on a trend by using the Step Forward or

Backward buttons on the time scale. These time changes are

not saved with the symbol.

-or-

Click to select the symbol you want to change. To select multiple

symbols, hold down the Shift key while selecting symbols. To change

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Rockwell-automation FactoryTalk Historian SE ActiveView 3.2 User Guide Manual de usuario Pagina 32