Creating the Operator Screen

At a Glance

The operator screen is used to animate graphic objects that symbolize the application. These objects can belong to the Control Expert library, or can be created using the graphic editor.

NOTE: For more information, refer to Operator Screens.

Illustration of the Operator Screen

The following illustration shows the application operator screen:

The associated variables are presented in the table below:

N°	Description	Associated variable
1	Pump flow indicator	Pump_Flow
2	Mesured level indicator	Level
3	Representation of the level in the tank	Level
4	Valve	Lim_Valve_Closure
5	Scale indicator	Desired_Level
6	Desired level indicator	Desired_Level
7	Tank Draining button	Drain
8	"Tank ready" indicator light	Tank_Ready
9	"Low tank level" indicator light	Tank_Low_Level
10	"High tank level" indicator light	Tank_High_Level
11	Stop button	Stop
12	Start button	Run

NOTE: To animate objects in online mode, you must click on

. By clicking on this button, you can validate what is written.

Procedure for Creating an Operator Screen

The table below shows the procedure for inserting and animating the tank.

Step	Action
1	In the Project browser, right click on Operator screens and click on New screen. The operator screen editor appears.
2	In the Tools menu, select Operator Screen Library. The window opens. Double click on Fluids then Tank. Select the dynamic tank from the runtime screen, and Copy (Ctrl + C) then Paste (Ctrl + V) it into the drawing in the operator screen editor (to return to your screen, click on Window then Screen). The tank is now in your operator screen. You now need a variable to animate the level. In the Tools menu, click on Variables Window. The window appears to the left, and in the Name column we see the word %MW0. To obtain the animated part of the graphic object (in this case the tank), double click on %MW0. A part of the tank is selected. Right click on this part, then click on Characteristics. Select the Animation tab and enter the variable concerned by clicking the button (in the place of %MW0). In our application, this will be Tank_vol. You must define the tank’s minimum and maximum values. In the Type of animation tab, click Bar chart then the button, and fill in the entry fields according to the tank. Confirm with Apply and OK.
3	Click on to select the other lines one by one and apply the same procedure.

The table below shows the procedure for creating the Start button.

Step	Action
1	In the Project browser, right click on Operator screens and click on New screen. The operator screen editor appears.
2	Click on the and position the new button on the operator screen. Double click on the button and in the Control tab, select the Run variable by clicking the button and confirm with OK. Then, enter the button name in the text zone.

NOTE: In the Instance Selection, tick the IODDT checkbox and click on

to access the I/O objects list.