The programmable logic controller (PLC) is a microprocessor-based system that accepts input data from switches and sensors, processes that data by making decisions in accordance with a stored program, ...

There are many industrial applications, such as programmable logic controllers, that require efficient, low cost, step-down power conversion over a wide range of voltage levels. This paper discusses ...

There are many vendors and sources of PLCs: Automation Direct, FactoryMation, B&B Electronics, and yes, even eBay, among others. I will use the Click PLC available from Automation Direct as an example ...

Industrial manufacturers must often attempt to forecast equipment requirements when installing a new system or building a new factory. Projecting communication ...

Rockwell Automation announces the new Allen-Bradley Micro820 programmable logic controller (PLC), a new addition to the Allen-Bradley Micro800 PLC family. The 20-point Micro820 controller features ...

Ladder logic uses switch or relay contacts to implement Boolean expressions. In years past, ladder logic was made possible with discrete relays and was sometimes termed “relay logic.” Today most ...

Jonathan Wilkins, of industrial automation components suppler European Automation, discusses the top five problems associated with programmable logic controllers (PLCs). Jonathan Wilkins, European ...