Programmable Logic Controllers (PLCs) are essential components in modern industrial automation. They are used to control and monitor various industrial processes, making them more efficient, reliable, and safe. Choosing the right PLC brand and manufacturer can significantly impact the performance, cost, and maintenance of an automation system.

This article provides a comprehensive overview of the top 10 PLC brands and manufacturers. The rankings are based on various factors, such as revenue, market share, innovation, customer feedback, and expert reviews. The article aims to help industrial professionals, engineers, and decision-makers make informed choices when selecting PLCs for their applications.

The top 10 PLC brands and manufacturers are listed below in alphabetical order. Each brand is briefly described, highlighting its strengths, weaknesses, and unique features. The article also includes links to the official websites, product catalogs, and other relevant resources of each brand. The information is up-to-date as of the time of writing, but readers are encouraged to verify it independently and consult with experts before making any purchasing decisions.

Section 1: Siemens

Siemens is one of the leading manufacturers of programmable logic controllers (PLCs) in the world. With an estimated revenue of $18,281 million USD, Siemens is currently the top PLC manufacturer according to industrial automation revenue.

Siemens offers a wide range of PLCs, including the SIMATIC S7-1200, SIMATIC S7-1500, and SIMATIC S7-300, which are widely used in various industries such as automotive, food and beverage, and pharmaceuticals. These PLCs are known for their reliability, flexibility, and ease of use.

In addition to PLCs, Siemens also offers a range of software tools for programming, simulation, and monitoring of PLCs. These tools include the TIA Portal, which is a comprehensive engineering framework for automation tasks, and the SIMATIC WinCC, which is a powerful visualization software for human-machine interface (HMI) applications.

Siemens has a strong presence in the global market, with operations in more than 200 countries. The company has a reputation for innovation, and has been awarded numerous patents for its PLC technology.

Section 2: Allen-Bradley

Allen-Bradley, a brand under Rockwell Automation, is a leading manufacturer of programmable logic controllers (PLCs) and programmable automation controllers (PACs). The company offers a wide range of controller types and sizes to fit various industrial applications, from large to small and even micro applications.

One of the most popular PLCs from Allen-Bradley is the ControlLogix, which is designed for complex processes and high-speed applications. It features a modular design that allows users to customize their system based on their specific needs. Another popular product is the CompactLogix, which is designed for mid-range applications and has a small footprint.

Allen-Bradley also offers a range of software tools to help users program their PLCs and PACs, including the Studio 5000 Logix Designer, which is a common platform for programming all Logix controllers. The company also offers a range of support services, including training, technical support, and repair services.

Overall, Allen-Bradley is a trusted brand in the industrial automation space, known for its quality products and reliable support services. Its products are used in various industries, including automotive, food and beverage, and pharmaceuticals.

Section 3: Schneider Electric

Schneider Electric is a frontrunner in the automation industry, offering a wide range of programmable logic controllers (PLCs) and programmable automation controllers (PACs) that cater to various industries. The company's focus on innovation and sustainability has made it a world leader in energy management solutions.

One of the company's most popular PLC series is the Modicon M221, which is designed for small to medium-sized machines. This series offers a compact and flexible design, making it easy to install and program. The Modicon M221 also features built-in Ethernet connectivity, which allows for easy integration into existing systems.

Another popular series from Schneider Electric is the Modicon M580, which is designed for large and complex applications. This series offers high-performance processing power, built-in cybersecurity, and redundancy options for maximum reliability. The Modicon M580 also allows for easy integration with the company's EcoStruxure Plant architecture, which provides real-time data analysis and predictive maintenance capabilities.

Schneider Electric's PLCs and PACs are IIoT-ready, meaning they are equipped with the necessary connectivity and processing power to handle big data analysis. The company also offers a range of software solutions for energy management, asset management, and predictive maintenance.

Here is a table comparing some of Schneider Electric's popular PLC series:

Schneider Electric's commitment to sustainability is also evident in its range of energy-efficient products, including its PLCs and PACs. The company's EcoStruxure Plant architecture allows for efficient energy management and optimization, reducing energy consumption and costs.

Section 4: Mitsubishi Electric

Mitsubishi Electric is a leading manufacturer of programmable logic controllers (PLCs) and other industrial automation solutions. The company has a strong reputation for quality and reliability, and its products are widely used in a variety of applications.

According to ladderlogicworld.com, Mitsubishi Electric is the second-largest PLC manufacturer in the world, with industrial automation revenue of $13,346 million USD. The company's PLCs are known for their advanced features, including high-speed processing, flexible programming options, and built-in networking capabilities.

One of the key advantages of Mitsubishi Electric PLCs is their compatibility with a wide range of other automation products. The company offers a comprehensive suite of software tools and networking technologies that make it easy to integrate its PLCs with other systems and devices.

Mitsubishi Electric also offers a range of specialized PLCs for specific industries and applications. For example, the company's MELSEC-F series PLCs are designed for high-speed processing in manufacturing and production environments, while its MELSEC-Q series PLCs are optimized for complex control tasks in process automation.

Overall, Mitsubishi Electric is a top choice for companies looking for reliable, high-performance PLCs and other automation solutions. With a strong focus on innovation and customer support, the company is well-positioned to continue leading the industry for years to come.

Section 5: Omron Corporation

Omron Corporation is a global leader in the production of automation components, including programmable logic controllers. The company was founded in 1933 and has since grown to become one of the largest manufacturers of PLCs in the world. Omron's PLCs are known for their reliability, flexibility, and ease of use.

Omron offers a wide range of PLCs to suit various applications, from small-scale equipment to entire production lines. The company's CJ1, CS1, and CP1 series of PLCs are popular choices for many industrial automation projects. These PLCs are designed to be easy to program and maintain, with user-friendly software and intuitive interfaces.

In addition to its PLCs, Omron also offers a range of support software and accessories to help users get the most out of their automation systems. The company's CX-One software suite is a comprehensive toolset that includes programming, simulation, and monitoring software, as well as a range of device drivers and utilities.

Omron has a strong commitment to quality and customer satisfaction. The company's PLCs are rigorously tested and certified to meet international standards, and Omron provides extensive technical support and training to its customers. This dedication to excellence has helped Omron build a reputation as a trusted and reliable provider of automation solutions.

Overall, Omron Corporation is a top choice for anyone looking for high-quality, reliable PLCs and automation components. With a wide range of products and a strong commitment to customer satisfaction, Omron is a leader in the industry and a name that can be trusted.

Section 6: ABB Group

ABB Group is a leading global technology company that specializes in robotics, automation, and power grids. The company has a strong presence in the programmable logic controller (PLC) market, offering a wide range of products that cater to various industries and applications.

One of ABB's most popular PLC product lines is the AC500 series, which includes the AC500-eCo V3 PLC that won the iF DESIGN AWARD in 2022. This series is known for its high performance, reliability, and flexibility, making it suitable for fully automated and autonomous machines.

In addition, ABB's PLCs are also used in the water and wastewater industry to support a sustainable water supply for 2.7 million people in Brazil. The AC500 series helps keep water and wastewater flowing efficiently and effectively, contributing to the overall sustainability of the industry.

Aside from its PLC offerings, ABB Group also places a strong emphasis on sustainability. As part of its 2030 sustainability strategy, the company aims to support its customers and suppliers in reducing their emissions and achieving carbon neutrality. ABB's greenhouse gas emissions reduction targets have been validated by the Science Based Targets initiative, aligning with the 1.5°C scenario of the Paris Agreement.

Overall, ABB Group is a reputable and reliable PLC manufacturer that offers high-quality products and services. Its commitment to sustainability and innovation sets it apart from other PLC manufacturers in the market.

Section 7: Rockwell Automation

Rockwell Automation is a leading provider of industrial automation and information solutions. The company's products, software, and services carry a reputation for quality, reliability, and innovation. Rockwell Automation is built on a strong foundation of integrity and remains focused on enhancing its unique technology differentiation to deliver integrated, value-added solutions.

Rockwell Automation manufactures PLCs, human-machine interfaces, sensors, and other equipment designed to automate factory systems. The company's Allen-Bradley® control systems help meet complex to simple application requirements. The scalable, multi-disciplined, and information-enabled programmable automation controller (PAC) is one of the company's most popular products.

Rockwell Automation's industrial control services include global short-circuit current ratings, line-to-load power solutions, and procurement specifications. The company is committed to providing its customers with the highest level of service and support. Rockwell Automation's dedication to quality and innovation has made it one of the most trusted names in the industrial automation industry.

Section 8: Bosch Rexroth

Bosch Rexroth is a leading manufacturer of industrial automation and control systems. The company has a long history of providing innovative solutions to a wide range of industries, including automotive, aerospace, and manufacturing. Bosch Rexroth's products are known for their high quality, reliability, and durability.

One of Bosch Rexroth's most popular product lines is its programmable logic controllers (PLCs). The company offers a wide range of PLCs that are designed to meet the needs of different industries and applications. Bosch Rexroth's PLCs are known for their advanced features, including high-speed processing, advanced communication capabilities, and support for multiple programming languages.

In addition to its PLCs, Bosch Rexroth also offers a range of other automation products, including servo drives, motion controllers, and human-machine interfaces (HMIs). The company's eConfigurators and Tools are user-oriented, clear, and easy to use, making it easy for customers to find the right product for their needs.

Overall, Bosch Rexroth is a reliable and trusted brand in the industrial automation industry. The company's products are known for their high quality, advanced features, and ease of use. If you are looking for a PLC or other automation product, Bosch Rexroth is definitely a brand worth considering.

Section 9: Delta Electronics

Delta Electronics is a leading manufacturer of power and thermal management solutions based in Taiwan. The company was founded in 1971 and has since grown to become a global provider of energy-saving solutions for a wide range of industries, including automotive, industrial automation, and renewable energy. Delta Electronics has a strong presence in the PLC market and offers a range of high-quality PLC products.

Delta Electronics' PLC products are designed to meet the needs of a wide range of industries and applications. The company offers a range of PLC products, including the DVP-ES2/EX2 series, the DVP-SS2 series, and the DVP-SA2 series. These PLCs are designed to be easy to use, reliable, and cost-effective, making them an ideal choice for many applications.

Delta Electronics is committed to providing its customers with high-quality products and services. The company has a strong focus on research and development and invests heavily in new technologies and product innovation. Delta Electronics has a global network of sales and support offices, ensuring that customers can receive the support they need, no matter where they are located.

Overall, Delta Electronics is a well-respected brand in the PLC market, with a strong reputation for quality and reliability. The company's commitment to innovation and customer service has helped it to maintain its position as a leading provider of PLC products and solutions.

Section 10: Fuji Electric

Fuji Electric is a global company that offers a wide range of products, including programmable logic controllers. Their PLCs are known for their high-speed advanced machine control, with a program capacity of up to 256 K steps and up to 65,536 points. This allows for a suitable system configuration ranging from small through to large scale. Additionally, their PLCs have a 1 ms program scan and I/O refresh, which is impressive and allows for quick and efficient processing.

Fuji Electric's PLCs are also known for their reliability and durability. They are designed to withstand harsh environments and can operate in temperatures ranging from -20°C to 60°C. This makes them ideal for use in a variety of industries, including manufacturing, automotive, and food and beverage.

Furthermore, Fuji Electric offers a range of software options to support their PLCs, including programming software and monitoring software. This allows for easy programming, monitoring, and troubleshooting of their PLCs. They also offer training and support to help customers get the most out of their products.

Overall, Fuji Electric is a reputable and reliable PLC manufacturer that offers high-speed, durable, and efficient products. Their range of software options and support services make them a great choice for customers looking for a comprehensive solution.