Ladder Logic and Symbology

The PLCs: Ladder Logic and Symbology training program, or unit, is designed to familiarize trainees with how PLCs use ladder diagrams and what the symbols used on ladder diagrams mean. After completing this program, the trainees should be able to identify common ladder diagram symbols, explain how a ladder diagram rung performs the logic functions necessary to determine whether the rung is true or false, and interpret the meaning of some common PLC instructions.



Duration: 2 hours