Editing expression in value field

How to edit expressions in an existing →value field:

1. Double-click the value field in the →graphical FBD-editor.

2. Enter the new expression in the value field.
   The expression may be an expression according to ST. Hence, it may consist of operands in ST and operators in ST. Examples:

   • for a →variable: var2
     Use the content assist in order to comfortably enter an existing variable within the value field: Enter e.g. the characters Var to display a list with all variables fitting the input. Then select the required variable from the list.

   • for a →literal: T#14ms

   • for a variable with an operator: 2 * IN2

3. Press the Enter-key or click anywhere outside the value field so that the new expression is entered in the value field. Press the ESC-key, if you want to discard the new expression.
   If the value field is highlighted as faulty, the new expression is causing an error. Enter another expression or correct the other FBD-logic until the FBD-object does not contain any faulty FBD-elements.