Skip to content

Visualization Documentation – AO Block

Usage of MLD Block through SCADA Template

The AO blocks play a vital role in bridging the gap between the digital and analog signals, enabling precise control and measurement in a wide range of application. By understanding their principles and capabilities, engineer can effectively utilize these blocks to design and implement sophisticated systems. In this block we are able to generate the alarms for any abnormalities.

The graphical icon is pre-configured and reused from the Visu_page.

Integrating the AO Block into Visualization

1. Open Your Visualization Page

  • Open your CODESYS project.
  • Navigate to the required HMI screen (e.g., Analog_Override, Process_Control).

2. Insert the AO Block Icon from Scada_test visu page

  • Open the Visualization Toolbox Go to Current Project.
  • Drag or drop the AO block icon to your Visualization page.
  • Or Just Copy the AO Block Icon from the Scada_test visu page and Paste into your Visualization page.

✅ Enables reuse of a standardized, tested faceplate block across screens.

  • Select the AO block icon.
  • click on the block icon Properties tab open automatically → Properties.
  • Go to the References and Expand the references.
  • you will see bl_AO or bl_AO_R Expand that also.
  • set the path in front of the tagAO by Double clicking on empty space and select the required tag.
  • Build and run the project.

AO Block Icon – Visualization Behavior

AO Icon - Auto Mode

There is no Faceplate for the AO block only there is color change of the block icon on the basis of the Alarm.