This means gaining a clear understanding of ladder diagrams and ladder logic, which enable the automation that drives motors. The combination of input devices that either manually or automatically ...

And, the ability to monitor PLC logic in ladder diagram format also made troubleshooting easier for those already familiar with relay-based control systems. Although there are many higher-level ...

Some PLCs are very simple and some are quite complex, but one thing they do have in common is they are usually programmed using ladder logic.