Rockwell-automation FactoryTalk Historian SE ActiveView 3.2 User Guide Manuel d'utilisateur télécharger pdf (Page 39)

Chapter 3

For Developers: Administering

FactoryTalk Historian ActiveView

Flow of Information

When you open a Web page with FactoryTalk Historian ActiveView

content, the flow of information occurs as follows:

1. Open Internet Explorer and browse to an Internet or intranet address

(URL) for a stored HTML Web page. The Web page downloads from

the Web server unless it is already cached on your PC. The PC's

Internet settings determine how long an existing page is stored before

it is discarded.

2. The Web page instructs the browser to create an instance of the

ActiveView Control (pbdctrl.ocx) on your PC.

3. The Web page sets the DisplayURL (page 62) property of the

FactoryTalk Historian ActiveView Control. This property tells where

the Display Document (.pdi) is stored. The Control downloads the

display (.pdi), which may be stored separately from the HTML page.

The Control then opens acview.exe. See also Expiration of

Displays (page 34).

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Rockwell-automation FactoryTalk Historian SE ActiveView 3.2 User Guide Manuel d'utilisateur Page 39