Trigger Workflow from the Historian Server

You can trigger the Workflow from System Platform based on an action in the Historian Server.

Prerequisites

• ArchestrA should be installed.

• Gateway object should be imported.

• AppEngine process owner should have Registry read permissions and file read-write permissions.

Historian

1. Creating Historian Event tag

   You can create a new Historian event tag or use an existing Historian event tag for triggering System Platform workflow. For creating the Historian event tag, see the Historian documentation available in Start > Programs > Wonderware Historian folder.

2. System Platform IDE: Importing Script Function Library

   Import the script library (Historian.EventScript.dll) from <A2 Install Path>\Workflow\ScriptLibrary

   

3. Creating Gateway object: Create a new instance. Right-click $WorkflowGateway, point to New, and select Instance. An instance with name WorkflowGateway_001 is created.

   

4. Assign this instance to the proper AppEngine and area.

5. Next, configure the Gateway object, as described in Initial Gateway Setup.

6. Next, you can create an instance of the app object from a template, such as the SQL Data template.