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Why does my WebVisualization for a Text Display not display values when I try to display Binary for a Byte variable using the %b notation??

Issue
Why does my WebVisualization for a Text Display not display values when I try to display Binary for a Byte variable using the %b notation?

Example:
When a Text Field is configured to display Binary of my BYTE variable "SR_Main.a"
in EcoStruxure Machine Expert with the Text = %b like the image below,
Text field %b - Binary value display for BYTE variable

When the project is run, the result is that a static "%b" is shown and not the binary representation of the Variable:
Text field shows static "%b" instead of a dynamic binary value


Product Line
EcoStruxure Machine Expert

Environment
Codesys Web Visualization engine for Modicon M241/M251/M262 PLCs

Cause
The use of %b requires a Visualization Task and the addition of a WebVisualization node under the Visualization Manager.

Resolution
Here are the steps to add a Visualization:

1) In the Applications Tree tab, Right-click on the Task Configuration node, hover your mouse over "Add Object >" and click on "Task..."
Add Object > Task...
2) In the Add Task dialog, rename the Task to "VISU_TASK"
Rename the task to VISU_TASK
3) Click the Add button. As a result, you should see the new VISU_TASK created under the Task Configuration node:
VISU_Task appears in the Application Tree under Task Configuration node

4) Navigate to the Tools Tree, and right-click on "Visualization Manager"
5) Hover your mouse over "Add Object >" and click on "WebVisu...". Use the default name "WebVisualization" and click Add.
Add WebVisualization object under Visualization Manager
As a result, you should see two new nodes appear.
a) Under the Task Configuration -> VISU_TASK, you should see a new "VisuElems.Visu_Prg" POU call automatically created.
b) Under the Visualization Manager node, you should see the new "WebVisualization" node.
Newly created VisuElems.Visu_Prg and WebVisualization nodes appear
6) Download and Run your project

The result will be that the Text object will now show the Binary representation of the BYTE variable:
Result - Dynamic binary value now appears instead of the static %b


If this FAQ did not solve your issue, you can chat with us at chat with us or e-mail us at customer.services@se.com to create a case with our Technical Support Team.

If you are not located in North America, please contact your local Customer Care Center for assistance:
Support | Schneider Electric Global (se.com)

Schneider Electric Netherlands

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