Knowledge Base

In the following example, the expressions are used to automatically calculate an average consumption per building, then aggregate them to the city level.

As you can see from the image below, expressions are created in two stages. First, use the Application Architect to generate an expression import file in the project’s TP directory. Then a Scada Basic program to import this file.

1/ Configuration in AA

Create the following Templates:

•            Project template with a File object and the name of it (Here EXPRV.dat)

• City template with a register (the expression result) and different file items (texts, expressions or parameters)

• Building template with a register (element of the expression) and some file items to complete.

Instantiate differents elements to build the project:

Then generate and check the result.

Warning: Use backslash (\) escape character to include double-quotes character (“) inside a string

2/ Import by Scada Basic program

Dynamic import by scada basic program. Simply use this kind of function Import_Expression below:

Check expressions in Application Explorer, you can use them in the project.

Download attachments:

AA_Consumption_project_v16