With the rapid advancement of modern industrial automation and the development of computer technology, communication technology and control technology, the traditional control field is undergoing an unprecedented change and is beginning to develop in the direction of networking. The structure of the control system has evolved from the original CCS (Computer Centralized Control System) to the second-generation DCS (Distributed Control System) to the popular FCS (Field Bus Control System). 

The requirements for large data volume and high-speed transmission such as images and voice signals have given birth to the combination of Ethernet and control networks, which are currently popular in the commercial field. This wave of industrial control system networking has integrated a variety of popular technologies such as embedded technology, multi-standard industrial control network interconnection, wireless technology, etc., thereby expanding the development space of the industrial control field and bringing new development opportunities. The mainstream equipment for industrial control in modern industry is commonly used embedded industrial computers and PLCs. Let's talk about the relationship between these two industrial controllers and their relationship in detail.

PLC is defined as Programmable Logic Controller, which is similar to relay logic system. Relay logic is mostly used to design the motor circuit and the overall control panel of the relay. In the past 30 years, PLC has been occupying a very important position in the field of industrial control. It can guarantee the real-time performance of the process; the real-time performance of reading and writing input and output (I/O) values; and the robustness of execution and continued operation. 

And reliability; protection of control code and execution from external influences; independent function, ensuring the specificity of control response. The cost of PLC has been declining, and communication capabilities have been continuously enhanced. The advancement of software has also enabled users to easily set and use. PLC can also take on more logic control. PLC can significantly improve automation efficiency, increase productivity, reduce costs, and enhance adaptability to meet the ever-changing manufacturing requirements.

With the introduction of industrial computers into the industrial control field, PLC has not been completely replaced because of its rapid integration with new technologies, such as a large number of network connections, processing speed, local storage and programming flexibility. Another reason is that the integration of various control modules has no compatibility issues, which reduces the cost of startup and system verification, and provides a tested and highly stable control environment.

The introduction of industrial computer has brought great changes to the industrial manufacturing field. It is a brand-new integrated application with greater flexibility, enhanced programming features, enhanced connectivity, and saved time and money. The big difference from PLC is that it allows users to control a variety of functions through an industrial computer instead of many PLCs. Industrial control uses Windows, Linux, Android systems, etc., which can connect the bottom of the factory and the enterprise-level ERP system through a standard interface . 

The use of industrial computers and PLCs in automation systems is not just a matter of choosing one. In the current or future wave of automation, industrial computer and PLC have their own characteristics. In many cases, the control process includes both discrete and process control, so PLC and industrial computer will work side by side.

Touch Thinking is committed to the sales of embedded industrial computers, industrial tablet computers, and industrial displays, providing high-end control system overall solutions and OEM/ODM customized services. Tangxiang products are widely used in industrial automation, self-service vending machines, medical treatment, MES system integration, intelligent equipment, electric power, intelligent transportation, intelligent logistics and other fields.