HomePLCWhat are the Most Popular PLC Brands?

What are the Most Popular PLC Brands?


Industrial automation heavily relies on Programmable Logic Controllers (PLCs), which are the backbone of modern control systems. PLCs are used to monitor and control machinery, processes, and various applications in numerous industries. This article explores the most popular PLC brands available in the market and provides guidance on how to choose the right one for your specific needs.

Importance of PLC Brands:                                  

Selecting the right PLC brand can significantly impact the success of an industrial automation project. Popular PLC brands offer advanced features, reliable performance, seamless integration, technical support, and long-term compatibility. They ensure smoother operations, reduce downtime, and enhance overall productivity.

1. Siemens:


Siemens is one of the leading PLC brands globally, known for its high-quality products and advanced technology. They offer a wide range of PLCs suitable for diverse applications, along with excellent technical support and training. Siemens PLCs are renowned for their reliability, innovation, and seamless integration with other automation systems.

2. Allen-Bradley:

Allen-Bradley plc

Allen-Bradley, a part of Rockwell Automation, is a trusted name in the PLC industry. They provide a comprehensive range of PLCs with excellent scalability, robustness, and flexibility. Allen-Bradley PLCs are widely used in various industries, known for their user-friendly programming, compatibility, and reliable performance.

3. Schneider Electric:

Schneider Electric plc

Schneider Electric is another popular PLC brand offering a diverse range of automation solutions. Their PLCs are known for their wide range of communication options, high-speed processing, and efficient programming environment. Schneider Electric PLCs are widely used in applications requiring precision and high-speed control.

4. Mitsubishi Electric:

mitsubishi plc

Mitsubishi Electric is renowned for its PLCs’ reliability, technological advancements, and exceptional performance. They offer a comprehensive range of PLCs suitable for small to large-scale automation applications. Mitsubishi Electric PLCs are known for their exceptional speed, network capabilities, and user-friendly programming interface.

5. ABB:

ABB plc

ABB provides a wide range of PLCs known for their precision, durability, and adaptability. ABB PLCs offer advanced diagnostics, efficient programming tools, and seamless integration with other automation components. They are widely used in industries requiring high-performance control and monitoring systems.

6. Omron:


Omron’s Sysmac series reflects the brand’s dedication to innovation and user-friendly design. These PLCs are known for their advanced motion control capabilities and seamless connectivity with other automation components. Omron continues to push boundaries, addressing the evolving needs of industries with its forward-thinking PLC solutions.

7. Delta Electronics:


Delta Electronics has made a mark with its DVP series PLCs, emphasizing smart and efficient automation solutions. These PLCs are recognized for their compact design and high-speed processing, catering to diverse industrial applications. Delta Electronics remains at the forefront of technological advancements in the PLC domain.

How to Choose the Right PLC Brand?

Choosing the right PLC brand should be based on thorough evaluation and consideration of various factors. Here are the key steps to help you make an informed decision:

a. Consider your application requirements:

Understand the specific needs of your industrial automation project, including the desired functionality, input/output requirements, network compatibility, and scalability.

b. Evaluate reliability and durability:

Research the reliability and durability of each PLC brand by considering their track record, customer reviews, and industry reputation. Look for brands known for robustness and long-term performance.

c. Assess technical support and training:

Check the availability of technical support, training programs, and documentation provided by the PLC brands. Look for brands that offer comprehensive support and training to ensure smooth implementation and troubleshooting.

d. Consider future expansion and compatibility:

Evaluate the scalability and compatibility of the PLC brands with your existing automation infrastructure. Ensure the brand supports future expansion and integration with other devices or systems.

e. Compare pricing and long-term costs:

Consider the initial investment, maintenance costs, and overall long-term expenses associated with each PLC brand. Keep in mind the balance between cost-effectiveness and quality to ensure a worthwhile investment.

Frequently Asked Questions: What are the Most Popular PLC Brands?

Which brands of PLC are popular in the market?

Several PLC brands have gained popularity in the market, catering to diverse industrial needs. Some of the most prominent ones include Siemens, Allen-Bradley (Rockwell Automation), ABB, Mitsubishi Electric, Schneider Electric, Omron, and Delta Electronics. Each brand offers a range of PLCs with unique features, making them well-received in various industrial sectors.

What is the biggest PLC in the world?

Determining the “biggest” PLC can be subjective, as it depends on the specific criteria—whether it’s physical size, processing power, or application scope. In terms of processing power and capabilities, PLCs from Siemens, Allen-Bradley, and ABB are often considered among the largest due to their ability to handle complex automation tasks in large-scale industrial processes.

What is the most powerful PLC?

Siemens, Allen-Bradley, and ABB are known for manufacturing some of the most powerful PLCs in the market. Siemens, with its high-end SIMATIC series, and Allen-Bradley’s ControlLogix series are recognized for their robustness and ability to handle complex automation processes. ABB’s AC500 series also stands out for its power and versatility.

What is the fastest PLC in the world?

Determining the fastest PLC involves considering factors like scan time and processing speed. PLCs from Mitsubishi Electric, Siemens, and Omron are often lauded for their fast processing capabilities. Mitsubishi Electric’s MELSEC series, Siemens’ high-performance SIMATIC PLCs, and Omron’s Sysmac series are known for their swift response times in handling real-time control tasks.

What are the 5 most popular types of PLC?

PLCs can be categorized based on their architecture and application. The five most popular types include:

Compact PLCs: Small in size, suitable for applications with space constraints.

Modular PLCs: Composed of interchangeable modules, allowing for customization and scalability.

Rack-mounted PLCs: Designed to fit into standard electronic equipment racks, often used in larger control systems.

Programmable Automation Controllers (PACs): Combining PLC and PC functionalities for enhanced processing power and flexibility.

Distributed Control Systems (DCS): Commonly used in large-scale industrial processes, managing multiple control loops and devices.


Selecting the right PLC brand is crucial for successful industrial automation. By considering factors like application requirements, reliability, technical support, future compatibility, and pricing, you can make an informed choice. Explore the top PLC brands in the market, assess their features, and choose the one that best aligns with your industrial automation needs.

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