EDN

Reference Design: Introduction to PLCs (Programmable Logic Controllers)

This tutorial offers an in-depth introduction into programmable logic controllers (PLCs). The article starts with an overview of the history and the role PLCs in factory automation. The basic ...
Machine Design

Programmable-logic controllers

Two new controllers have joined the Jazz 2 Series, the JZ20-R16 and JZ20-R10. The controllers feature 48K (virtual) ladder-logic memory and a built-in mini USB programming port. The controllers can ...
Machine Design

Engineering Essentials: What Is a Programmable Logic Controller?

A programmable logic controller (PLC) is an industrial solid-state computer that monitors inputs and outputs, and makes logic-based decisions for automated processes or machines. 1. The image above is ...
Automation

AutomationDirect DirectLOGIC 305 Modular Programmable Logic Controller (DL305 PLC)

This PLC design has been marketed by various name-brand PLC manufacturers for over 17 years. It has masqueraded as the General Electric Series One, the Texas Instruments Series 305, and the Siemens ...
Automation

AutomationDirect DirectLOGIC 06 Micro Programmable Logic Controller (DL06 PLC)

The DirectLOGIC 06 (DL06) programmable logic controller (PLC) is our first micro PLC to combine its fixed I/O of 20 inputs and 16 outputs with four option card slots for expansion (discrete, analog, ...