This article discusses the concept of state machines and state machine programming, particularly when utilized with ladder logic. Overview Ladder logic is a common visual programming language that can execute in a PLC. Ladder logic is used to control machinery and direct processes in industrial control applications. Frequently, there is a desire to utilize ladder … Read more
This article describes the programming language ladder logic used to program PLCs and shows examples of how it functions. Ladder diagram, better known as ladder logic, is a programming language used to program PLCs (programmable logic controllers). This article will briefly describe what ladder logic is and go over some examples of how it functions. … Read more
What is a PLC? This article will lay out a succinct definition of a programmable logic controller and explain its basic components. The programmable logic controller, or PLC, is ubiquitous in every kind of process and manufacturing industry today. PLCs were initially designed to replace electromechanical relay systems in order to offer a simpler solution … Read more
A brief overview of controllers through history and an analysis of factors to consider when deciding which one to use. A Historical Context PLCs were initially introduced in the 1960s and early 1970s. The goal back then was to replace relay switch cabinets and large masses of wires with a more compact and efficient solution. Later … Read more
This article dives into automated palletizing and the different ways you can automate the palletization process through PLC and robotic controls. What is Palletizing? Once a manufactured product is complete and ready for shipment it generally needs to be palletized for convenient distribution. Without automation, workers have to physically handle and stack the product before … Read more
Networked remote I/O allows us to work with a machine center separately from the rest of the system, and drop the solution right in place. If you are worried about the distance between machines or the age of an old machine becoming a hindrance to bringing your operation into the 21st century, don’t worry. Computer … Read more
When troubleshooting AC outputs driven by TRIACs, some confusing meter readings can result from the solid state properties of a series circuit. In this article, learn proper troubleshooting techniques. In most discrete PLC systems, the process of troubleshooting output devices is quite simple. If the output terminal is working, then you should measure 0 volts … Read more