THE use of function blocks for programming of programmable logic controllers (PLCs) is gaining wider acceptance. Rather than the classic “contact and coil” representation of ladder diagram or relay ...

For PLC programming, U.S control engineers and technicians turn typically to ladder logic, a programming technique that’s been around since the birth of programmable logic controllers, or PLCs, in the ...

Basic Programming for PLCs provides an overview of the basic principles, structure, and instructions of PLC programming. Most PLC programs use instructions written in ladder logic, which is a ...

This class explains how basic ladder diagram programming is used to program PLCs. It examines the basic rules that are used to construct a ladder diagram program, including Boolean logic functions. It ...

An overview of the hardware and software components of PLCs and their programming languages. A programmable logic controller (PLC) is an industrial solid-state computer that monitors inputs and ...

For the types of HVAC systems that our company regularly automates, we have found this Arduino-compatible open PLC controller platform to be capable and an excellent value. We can use modern ...

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 ...

It’s surprising how much of an impact such a small component as a programmable logic controller (PLC) can have on the smooth operation of a hyperscale data center. While people rarely see it, the PLC ...