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A Guide to PLC Programmable Controller

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Margor Automation
A Guide to PLC Programmable Controller

In the modern-day manufacturing facility, interconnectivity is a critical component. Manufacturers are investing in smart devices, network-connected machinery, and similar digital tools. So, it’s important to create a way to communicate with the tools and automate processes. The objective is to minimize the intervention of humans.

Traditionally, individual machines and control systems were connected directly with each other, making the process complicated. To manage this hurdle, modern manufacturers utilize PLC programming systems. With this, they don’t wire each machine physically; instead, they connect equipment to PLCs.

In this blog, we will discuss the use of PLC programming systems in manufacturing facilities.

A brief introduction to PLC programmable controller

It’s a small computer programmed that carries out specific actions or outputs based on the inputs received by it. The inputs are a set of specific rules.


PLC programming systems are widely used in commercial and industrial settings, such as airports, office buildings, railways, and manufacturing facilities.

When connecting the systems using a PLC, the approach differs from the more traditional approach.

Understanding the working of PLC programmable controller

To understand the functioning of a PLC, the first thing to understand is its structural setup. A PLC has a central processing unit that is sandwiched between an input and output module. Also, the CPU is connected to a programming device.


To program the CPU of PLCs, manufacturers use a computer. The program is important to give controllers the logical steps for processing incoming data.

Further, the pieces of equipment are connected to the input and output modules based on the desired process. Sometimes, manufacturers have human-machine interfaces that are also connected to the input module.

The process starts when PLC obtains inputs from equipment and HMI. Next, its controller runs the logic program that determines the kind of signal to send to the output module. This change of effect is seen in the desired equipment. The program controls several complex systems.

Benefits of choosing a PLC programmable controller

Easy to program

Manufacturers have to deal with complicated logic sequences to run systems. These sequences make the entire ordeal challenging. PLC programming systems can be programmed using basic programming languages, controlling various industrial applications.


Provides more flexibility

A PLC is a good option if manufacturers want to adjust their production processes. Adjustment becomes convenient because the logic program is easy to edit via the connected computer. It’s very different from wiring and rewiring the entire relay circuit. Also, troubleshooting and maintenance are easy.


Improves reliability

As wiring requirements are less in PLC-centric pneumatic automation, there are fewer chances for unreliable physical connections, which increases manufacturing processes significantly.


Quick response time

Giving instant response to in-factory events is important for modern manufacturers. A PLC programmable controller controls machinery in real-time, helping manufacturers to respond immediately to inputs.


Bottom Line

Having the best PLC programming system is important for manufacturers to function effectively and efficiently. By partnering with Harbor Automation, it’s easy to create and change PLC programs.


To know more about our services, contact us today.

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