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 ...

The additions of extended and function block instructions to the basic instructions representing relays, timers, and counters, however, have helped ladder diagram programming to remain a flexible and ...

GUILDFORD, SURREY / ACCESSWIRE / January 29, 2019 / ANGLE plc (AGL.L) (ANPCY), a world-leading liquid biopsy company, is delighted to announce that its ParsortixTM system has been successfully ...

PLC Counters and Timers provides an overview of the functions of counter and timer instructions in a PLC ladder logic program. Counter and timer instructions are internal features of a program that ...