Rockwell-automation FactoryTalk Historian SE DataLink 4.2 User Guide Manual do Utilizador descarregar pdf (Página 49)

3 ● FactoryTalk Historian DataLink Functions

●

The resulting function array appears as:

where a value is displayed for each 3-hour interval.

Timed Data

Returns actual or interpolated sample values for a FactoryTalk Historian

point to match an array of specified time stamps.

Required

Arguments

Tagname

Timestamp

A reference to one or more spreadsheet cells containing time stamp

values.

Retrieval Mode

There are two modes to select from:

 Interpolated

Interpolates values corresponding to specified time stamps.

 Exact Time

Retrieves only values exactly matching specified time stamps, or

returns

No events found

if no value exists.

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 163 164

Sem comentários

Rockwell-automation FactoryTalk Historian SE DataLink 4.2 User Guide Manual do Utilizador Página 49