Rockwell-automation FactoryTalk Historian SE 3.0 Live Data Interface U Manuel d'utilisateur télécharger pdf (Page 26)

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FactoryTalk Historian Live Data Interface User Guide

Length

The Tag field allows a maximum of 1023 characters.

Point Source

The Point Source is a unique single or multiple character string that is used

to identify the PI point as a point that belongs to a particular interface. The

Point Source for FactoryTalk Historian Live Data Interface is FTLD. For

additional information, see the /ps command-line parameter description in

Command-line Parameters (page 37).

Point Type

Typically, device point types do not need to correspond to Historian point

types. For example, integer values from a device can be sent to floating-

point or digital Historian tags. Similarly, a floating-point value from the

device can be sent to integer or digital Historian tags, although the values

will be truncated.

PI 3 Server Nodes

The following point types are supported on PI 3 Servers:

 float16

 float32

 float 64

 int16

 int32

 digital

 string

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Rockwell-automation FactoryTalk Historian SE 3.0 Live Data Interface U Manuel d'utilisateur Page 26