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CODESYS provides the capability of searching the entire project for the definition location of a variable or function. The block that includes the definition opens in the editor with the marked declaration.

Finding the declaration of a variable

Requirement: You have opened a POU in the editor.

  1. Set the cursor at an identifier in the implementation section.

  2. Click “Edit  Browse  Go to Definition”.

    The POU with the declaration opens in the editor with the variable definition marked. If the definition is located in a compiled library, then the respective block opens in the library manager.

You can execute this command in both online and offline mode.

Examples

The following block includes a function block definition (‎fbinst‎), a program call (‎prog_y()‎), and a function block call (‎fbinst.out‎):

VAR fbinst:fb1; ivar:INT; END_VAR prog_y(); ivar:=prog_y.y; res1:=fbinst.out;

If the cursor is located at ‎prog_y‎, then the command opens the program ‎prog_y‎ in the editor.

If the cursor is located at ‎fbinst‎, then this command focuses in the declaration section at line ‎fbinst:fb1;‎

If you set the cursor at ‎out‎, then this command opens the function block ‎fb1‎ in its editor.