Select FBD Variables and Instances

Click this button or press <Esc> before any selection.

To select the name of the declared variable to attach to a graphic symbol, you must be in Selection mode.

Double-click on the tag-name gray area.

These types of object must be linked to valid symbols:

Tool

Button

Description

Block

For a function block, you must specify the name of a valid declared instance of the corresponding type.

Coil

Must be attached to a declared Boolean variable.

Contact

Must be attached to a declared Boolean variable.

Jump

Must have the same name as its destination label.

Label

Must have a name.

The name must be unique within the diagram.

Variable

Must be attached to a declared variable.

Alternatively, a variable box may contain the text of a valid constant expression.

Symbols of variables and instances are selected using a variable list, that can be used as the variable editor.

  1. Enter a symbol or constant expression in the Edit box and click OK.
  2. Select a name in the list of declared objects or
    click the Create button to declare a new variable.

See Select Variables and Instances.