Analog Write Operation

Use the Analog Write component to update or configure set-point registers for alarms. You can also use Analog Write to set up temperature, scaling values, and CT and PT ratios.

To use User Input Write Operation:

1. In the Graphics Editor, create a new graphic.
   
   
2. In the bottom left corner, click Components.
   
   
3. Click on Miscellaneous tab within the Components pane.
   
   
4. Drag and drop the User Input Write Operation component from the Miscellaneous section to the workspace. For example:
   
   
5. In the bottom right corner, click Properties.
   
   
6. Add the fully qualified DataPoint name values as follows:
   
   
7. Go to File > Save As > Project TGML.
   
   

 

Test the changes:

1. Log in to PO Web Applications (https://localhost/webhmi or https://ipaddress/webhmi).
2. Click on Analog Write component created from the Diagram Library:
   
   
3. Click on Write operation component, type the Data point value in the displayed popup and click on OK.
   
   
4. Type the Username and Password and click on Confirm. To control which components require authentication, see Turning off credential requirements for control components.
   
   

   The success popup message is displayed:
   
   

5. Click Close in the pop up. The datapoint value 87 is displayed: