Change the values of variables while monitoring

The value of a variable can be changed while you are in Online mode when monitoring is active. Depending on whether the variable is Boolean or non-Boolean, the procedure of setting the new value varies.

Open the Change value dialog
- LD/FBD editor, ST editor: Press <Ctrl> and click the variable name.
- LD/FBD editor: Double-click on the elements e.g. contact, coil, input pin or output pin or press the space key twice while the mouse is over the element.
- IL editor: Double-click the variable name or press the space key twice while the mouse is over the variable name.
- SFC editor: Double-click the variable name.
Select a new value
- For Boolean variables, select the new value from one of the following options:
  - Invert: The value of the Boolean variable is inverted. For example, if the variable has the value TRUE, it is set to the value FALSE.
  - TRUE: The Boolean variable is set to the value TRUE.
  - FALSE: The Boolean variable is set to the value FALSE.
- For non-Boolean variables, enter the new value in the dialog window that appears and select OK.

Toggle Boolean variables while monitoring

ST editor, LD/FBD editor: Press <Ctrl>+<Alt> and click the variable name.
LD/FBD editor: Press <Ctrl>+<Alt> and double-click on the elements like contact, coil, input pin or output pin or press the space key twice while the mouse is over the element.
IL editor: Press <Ctrl>+<Alt> and double-click the variable name or press the space key twice while the mouse is over the variable name.