Editing Variables from the Variable Selector

To edit a variable, create variables from dictionary instances. This prevents potential mistakes such as inserting a variable in an unintended scope.
To edit a variable
  1. Access the
    Variable
    Selector
     using the required method for the element:
    • For graphical program organization units (POUs) Function Block Diagram (FBD) or Ladder Diagram (LD), drag an element requiring a variable or double-click an element in the language container. The
      Variable
      Selector
       opens.
      TIP: To open the Variable Selector, select
      Automatically
      invoke
      the
      Variable/Block
      Selector
      .
    • For textual POUs (Structured Text (ST)), right-click in the language container and select
      Variable
      Selector.
    • When mapping variables for communication protocols, select vrs_vrs2
      Add
      Variables
      .
In the variables grid, locate the variable to edit, changed the required properties for the variable, and then press
Enter
.
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