Category: PLC

Sinking vs Sourcing in PLCs

In general, the concept of Sourcing and Sinking details a current flow relation between input and output devices of a control system and their power supply. This concept is based on the basic electrical theory, which states that; to complete an electrical circuit, the conventional current should flow from the DC+ terminal through a load…

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CNC vs PLC – What Do They Stand For and What Is The Difference?

PLCs and CNCs are two major categories of digital controllers employed in different industrial control applications. On a surface level, it’s easy to group them together since they are both run by programs, digital processors, and they both interface with input and output devices. For example, if you ask a systems programmer whether a CNC…

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Everything You Need to Know About PLC Batteries

Programmable Logic Controllers (PLCs) are rugged and lightweight computers used to automate industrial processes such as wastewater treatment plants, ore processing plants, and manufacturing plants assembly lines. They are designed to perform logical decisions for different electro-mechanical control applications and to operate reliably in harsh industrial environments like in extreme low or high temperatures, and…

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PLCs Vs. Microcontrollers – Which Should I Use?

So, can a microcontroller be used in place of a PLC? The answer is in a very narrow set of circumstances, such as straightforward control requirements in a low duty environment, then the answer is yes. However, the differences above highlight that PLCs are designed for industrial and high-volume service applications that require safety, redundancy, ease of programming, and a host of other features that microcontrollers cannot provide.

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Hardware Comparison: MicroLogix 1400 Selection Guide

As the de facto standard for industrial programmable logic controllers, Rockwell Automation’s line of Allen-Bradley PLCs covers the full spectrum of application scales, from hobbyist to multi-site systems.  In this article, we’ll examine one of the most popular and cost-effective PLC options in Allen-Bradley’s catalog: the MicroLogix 1400 family.       MicroLogix Family Overview The MicroLogix…

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