As of October 2023, the top PLC (Programmable Logic Controller) manufacturers in the world are well-established companies known for producing reliable and versatile PLCs for industrial and automation applications. Please note that the rankings and market shares of these companies may have changed since then, but as of my last update, here are some of the prominent PLC manufacturers:

Siemens: Siemens is one of the world’s largest and most well-known providers of industrial automation and control systems, including PLCs. Their Simatic PLCs are widely used in various industries.

Rockwell Automation (Allen-Bradley): Rockwell Automation’s Allen-Bradley brand is a major player in the PLC market, offering a wide range of PLC products and solutions for industrial automation.

ABB: ABB is a global leader in robotics, power, and automation technology. They offer a comprehensive range of PLCs and control systems for industrial applications.

Schneider Electric: Schneider Electric provides a range of PLC solutions under its Modicon brand. They are known for their reliability and performance in industrial automation.

Mitsubishi Electric: Mitsubishi Electric’s PLCs are widely used in manufacturing and industrial automation. They offer a range of control systems for various applications.

Omron Corporation: Omron is known for its innovative automation solutions, including a variety of PLCs and industrial control products.

Bosch Rexroth: Bosch Rexroth is a trusted name in industrial automation and offers a range of PLC and control solutions for industrial applications.

Yokogawa Electric Corporation: Yokogawa specializes in process automation and control systems. Their PLCs are often used in industries like oil and gas, chemicals, and power generation.

Honeywell: Honeywell provides a wide range of industrial automation and control solutions, including PLCs, for various industries.

Panasonic Electric Works (now part of Nais/Aromat): Panasonic Electric Works, a part of the Panasonic Group, is known for its PLC products and industrial control systems.

Delta Electronics: Delta Electronics is a global provider of industrial automation solutions, including PLCs, and is particularly strong in the field of motion control.

Keyence: Keyence is a Japanese company that offers a variety of automation and control products, including PLCs and industrial sensors.

It’s important to note that the PLC market is highly competitive, and there are many other manufacturers and regional players that cater to specific industries and applications. When selecting a PLC manufacturer, it’s essential to consider factors such as the specific application requirements, support, and compatibility with existing automation systems. Additionally, since market dynamics may change, it’s a good idea to check the latest information and reviews to make informed decisions when choosing a PLC manufacturer for your automation needs.

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