In the online view of a ladder diagram (LD), the connecting lines are displayed in color: connections with the value ‎TRUE‎ are indicated by a thick blue line, connections with the value ‎FALSE‎ by a thick black line. In contrast, connections with an unknown or analog value are displayed normally (thin black line).

The contact and coil elements are also indicated.

For contacts and coils, a prepared value (‎TRUE‎ or ‎FALSE‎) is displayed in a small view next to the element.