FBD Variables

To connect a new symbol to an existing one (another variable, a block input, or a block output) in the workspace, keep the mouse button depressed (the cursor becomes a "ghost" symbol) and drag the element until its connecting line on the left (or right) overlaps an existing connecting point. When the mouse is released, the new symbol is automatically created and linked.

Replace existing variables in program organization units (POUs) by double-clicking them to access the Variable Selector or single-clicking them to select from a drop-down combo-box containing the global and local variables. Also, single-click a variable, then type a literal value in the text box provided. When inserting literal values beginning with a letter or an underscore, enclose these in single quotes as follows: 'abc'

When selecting items like local variables, global variables, and defined words from the drop-down combo-box, typing characters in the text box focuses on the possible items.

For input and output variables, choose to display comments entered in the dictionary. From the

View

menu, access the

Properties

window and define the

Comment Position

property.

Resize variables that display in the workspace.

To insert a variable