A typical Metal Oxide Varistor (MOV) is generally made of a combination of Zinc Oxide and other types of metal oxides such as Cobalt, Bismuth, and Manganese oxides. The metal oxide substance is arranged between two metal electrodes or plates with no polarity (no positive or negative sides) to interact with each other; so, the…
Drive or Electric Drive is an electromechanical system that necessarily uses an electric motor or a prime mover. In this system, the motion of the electric motor is controlled to make it applicable and useful for some applications in the realm of industry, automotive, domestic use, hospitals, etc. In an electric drive system, energy conversion…
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…
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…
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.
According to ISA, automation is defined as “the technique of making an apparatus, a process, or a system operate automatically”. In a more practical sense, it is a system that operates with minimum or no human intervention at all. It has been part of the development of mankind all along however, the concept was further…
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