A Programmable Logic Controller (PLC) is a specialized computing system widely used to control real-time industrial processes and assemblies. The block diagram of a generic PLC is shown in Figure 1.

In Part III of this series, we examined PLC programming methods (ladder logic and functional block diagram), and how the objects (coils and contacts) are system variables stored in the PLCs memory. We ...

A human machine interface (HMI) connected to a separate programmable logic controller (PLC) is the standard system for machine automation. However, combining PLC processing and HMI monitoring and ...

Electrical inspection mobile robots are robots that can be automated or remotely controlled to perform inspection and maintenance work in power systems. They are usually equipped with a variety of ...