Interlocks and safety circuits are essential features of any PLC program that controls machines or processes that involve hazards or risks. They ensure that the system operates safely and reliably ...

When a PLC is used primarily to replace relays, timers, and counters, it's hard to beat the simplicity and usefulness of ladder diagram programming. Their ability to accept programming in ladder ...

Ladder logic is one of the oldest and most popular PLC programming languages. It is based on the graphical representation of electrical circuits, where each rung of the ladder contains a series of ...

Obviously, the decision of Morley and his buddies working on project 084 was the correct choice because, despite the existence of the programming standard IEC 61131-3 and its inclusion of Sequential ...

Pilz released the first programmable safety system (PSS) in 1995, and since then it has been a market leader with the safety programmable logic controller (PLC). Users can now select three of the five ...

Programmable controllers (PLCs) were developed to solve the problems of automating and manufacturing control systems and they have found wide applications in industrial control fields. Ladder diagram ...

The IEC 611131-3, an open international standard for Programmable Logic Controllers (PLC) defines several domain specific languages for industrial and process automation. Domain specific languages ...