PLC or the rapid development of the Internet of Things

PLC is the main part of the automation equipment. With more and more industrial Ethernet applications in industrial automation production, network informationization of the production process is also one of the development trends. PLC or the large-scale application of the Internet of Things technology is again fast development of.

In the past 2012, China's Internet of Things industry market reached 365 billion yuan, up 38.6% from the previous year. From smart security to smart grids, from the popularity of two-dimensional codes to the landing of “smart cities,” as a promising new industry, the Internet of Things is blossoming and quietly affecting people’s lives. Experts in the industry believe that on the one hand, the Internet of Things can improve economic efficiency and greatly reduce costs; on the other hand, it can provide technical momentum for the recovery of the global economy. At present, the United States, the European Union and other countries are investing in senior research to explore the Internet of Things. China is also paying close attention to and attaching importance to research on the Internet of Things. The Ministry of Industry and Information Technology will work with relevant departments to conduct research on a new generation of information technology to form policies and measures to support the development of a new generation of information technology.

In the course of development of control technology, it is closely related to the development of high technologies such as computer technology, control technology, digital technology, and communication network technology. The formal development of various emerging technologies has promoted the development of programmable controllers. Let the PLC programmable controller be the mainstream control technology that replaces relays to achieve logic control. The basic structure of the PLC includes a power supply, a central processing unit (CPU), a memory, an input/output excuse circuit, a function module, and a communication module. Its working principle consists of three major components: scanning technology, user program execution phase, and output refresh phase. At present, the world-famous PLC brands include Siemens, Omron, Mitsubishi, Rockwell, Schneider, etc. The domestic brands mainly include Delta, Hollysys, Hexin, Xinjie and others.

In the past two years, due to the slowdown of domestic economic growth and the weakness of foreign economic recovery, PLC's market scale has shown a sharp decline. The relevant documents for the development guidance of the Internet of Things were formally introduced this year. Driven by the Internet of Things and the smart grid, the PLC industry will rebound and achieve rapid growth. The development of the Internet of Things covers a wider area. As the main technical means for information collection and control, PLC is bound to play a key role in the construction of the Internet of Things. At the same time, this is also to promote the further development and progress of PLC technology to adapt to the rapid development of the Internet of Things. The power consumption information collection system is the investment focus of the future smart grid, and it is estimated that by 2020, the total investment of the State Grid in the power and communication information platform will be 108.4 billion yuan and 46.5 billion yuan; at the same time, China will be leading the world in module and equipment manufacturing. It is bound to pursue the localization of core components and the localization rate of the components and components planned by the Ministry of Industry and Information Technology must reach 30%. PLC as the main communication method of the smart grid, will inevitably realize the standard in the information acquisition equipment, and the foreign demand will accelerate the growth of the domestic PLC industry even more.

At present, the domestic PLC technology has developed rapidly, the market share has increased significantly, and the development momentum is good. PLC technology has gradually matured and stabilized. The current development is moving toward a more professional and customizable route for different industries.