FBD/LD Parser Error (FBDP0018): Object is not connected correctly

The error is reported because a variable in the graphic code is not connected correctly. This may have two reasons:

Possible reason 1: The variable is a feedback variable but it is not connected on both sides. This is not allowed.

Remedy for reason 1

To use the variable as feedback variable, connect both sides of it, or
make the variable a "normal" variable with only one connection point by selecting the menu item 'Toggle Feedback Variable'.

Possible reason 2: The variable is not a feedback variable but it is connected on both sides. This is not allowed.

Remedy for reason 2

To use the variable as "normal" variable, disconnect one side of it
or
make the variable a feedback variable with two connection points by selecting the menu item 'Toggle Feedback Variable'.

Further Info
Refer to the topic "Feedback variables" for detailed information.