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 ...

In years past, ladder logic was made possible with discrete relays and was sometimes termed “relay logic.” Today most implementations are done using a specialized microprocessor-based device called a ...

Because all equipment is routed through the PLC, a control program in the PLC handles the “communication” between ... to wire an Arduino (or any other micro) to a PLC, logic-level translation (TTL to ...

On the surface, a programmable logic controller (PLC) might seem like nothing more than a generic microcontroller, perhaps outfitted to operate in industrial settings with things like high temperat… ...