Deep interpretation: PLC opens the intelligent road of electronic manufacturing equipment

Time:2019-10-19| Author:admin

In recent years, China's electronic manufacturing equipment industry has gone through a tortuous road from foreign introduction to digestion and absorption, and innovation. For electronics manufacturing equipment manufacturers, despite the wide variety of equipment, they are designed and manufactured to meet the increasingly high-end modular, networked and digital electronic equipment products, pursuing higher processing efficiency and smarter production lines. It is the unshakable vision of this industry.

Among them, PLC (Programmable Logic Controller) is one of the core technologies of equipment automation control. With the rapid development of its own technology, it is bound to be in more and more electronic manufacturing equipment, to the entire electronic automation production line / assembly line. The key to the automation system of the entire plant, and ultimately, will help the electronics manufacturing equipment manufacturer's Industry 4.0 goal to take a big step.

PLC: Technology Drives Smart Innovation

Since the birth of the first PLC more than 50 years ago, PLC has never stopped the pace of technological revolution, its variety is more and more abundant, its function is more and more powerful, and its application is more and more extensive, whether it is production, manufacturing or management, inspection. , all can see the figure of the PLC.

At present, with the development of microelectronics technologies such as large-scale and very large-scale integrated circuits, PLC has evolved from the original one to the current microcomputerized PC composed of 16-bit and 32-bit microprocessors, and realizes multi-processor. Multi-channel processing. Today, PLC technology is very mature, not only control function enhancement, power consumption and volume reduction, cost reduction, reliability improvement, programming and fault detection is more flexible and convenient, and with remote I / O and communication networks, data processing and The development of image display has made PLC develop in the direction of continuous production process control, and has become a pillar of industrial automation. Nowadays, in the era of intelligent manufacturing in various industries, the development of PLC technology presents new features such as bipolar development of products, communication networking, modularization and intelligence, diversification and standardization of programming languages/tools, and integration with emerging technologies. It will further empower digital enterprises and smart factories.

For example, at the end of 2018, PLC traditional giant Siemens introduced a new module integrated with artificial intelligence chips for SIMATICS7-1500 controller and ET 200MP I/O system: SIMATIC S7-1500 TMNPU (Neural Processing Unit) With the artificial intelligence chip Intel Movidius Myriad X Vision processing unit, it can achieve efficient processing of the neural network. In addition, the SIMATIC S7-1500 TMNPU is equipped with a USB 3.1 interface and a Gigabit Ethernet port to process the data of the connected sensors or data from the CPU program on a neural network basis. For example, using machine learning algorithms, quality control of production plants or image-controlled robot systems can be efficiently implemented.

Mitsubishi Electric's FX products are popular among users of the small PLC market due to their good performance and rich product line. The new generation iQ-FX5UJ has a program capacity of 48K Step, a control scale of 256 points, and built-in functions such as simple CPU communication and data logging. The iQ-F series safety expansion module is an important part of the series. The product specifications are mainly divided into two types: safety main module and safety input expansion module. The safety main module performs safety control and can be connected to the iQ-F bus. The safety expansion module It can be operated separately from the normally controlled power supply. In practical applications, the safety module sets different safety control modes according to different machine types to ensure the safety of the operator.

PLC: Building an electronic intelligent manufacturing future

The electronics manufacturing industry is cumbersome, and the equipment required for its processing involves the processing of various electronic devices. Electronic manufacturing equipment includes semiconductor equipment, optoelectronic equipment, electronic component equipment, SMT equipment, PCB equipment, environmental testing equipment, anti-static equipment, ultrasonic equipment, purification equipment, laser equipment and other electronic general equipment.

As a typical OEM industry, the electronics manufacturing equipment industry involves a wide range of product types. On the whole, the automation of semiconductor devices and integrated circuit special equipment and electronic whole machine assembly equipment is relatively high. The automation products used include PLC, low voltage inverter, HMI, and servo products. application.

B&R's latest controller, the Power Panel C70, is an integrated PLC end product suitable for handling small and medium-sized machines. It inherits B&R's traditional machine control architecture and is capable of intelligently manufacturing more complex controls and calculations. Mission capability, which integrates the HMI and PLC, specifically adapted to the OEM's machine control architecture. The Intel Atom processor delivers high enough performance to enable applications to achieve cycle times as low as 0.4ms. The Automation Runtime provides up to 8 task levels, which form the basis of this performance. The Power Panel C70 has a wide range of integrated interfaces: POWERLINK, Ethernet, X2X Link, USB and optional CAN. Its compact design, no fan, no battery, no hard drive, completely maintenance-free, IP65 protection on the front of the panel, especially suitable for harsh conditions.

As a control system, PLC is used in the electronic manufacturing equipment industry. It has a strong performance in the overall market of intelligent hardware products, especially smart phones, smart bracelets, children's watches, etc., which has driven the rapid development of electronic equipment manufacturing. The application of PLC in electronic product manufacturing equipment is mainly used to realize automatic control functions. PLC is used as a control center in electronic component processing and manufacturing equipment, so that the transmission and positioning of the components, the machining depth control motor, the rotary motor and the output motor can be coordinated and coordinated to achieve automation.

With the miniaturization and diversification of electronic products and the sharp increase in labor costs, the automation of electronic manufacturing equipment will be higher in the future, and the demand for target products will continue to rise. Electronic components, electromechanical components, cleaning machines, and welding machines, etc., will be used in a larger number of PLCs.

Due to the high degree of automation of the electronic equipment assembly equipment in the semiconductor device and integrated circuit special equipment industry, the special equipment for electric vacuum devices and the routine test and reliability test equipment include mechanical environment test equipment, climate environment test equipment, and reliability test equipment. Etc. will also be involved. Among the special equipments for electric vacuum devices, LCD devices have been developed in recent years. Basically, they are controlled by PLC. Each device is equipped with one host and 4-5 sets of expansion units. LCD devices contain several process flows, and PLCs for different device applications vary widely. Most of the processes apply to PLCs with IO points not exceeding 80, but there are also cases where large equipment exceeds 300 points.

According to statistics, in 2017, the proportion of automation products involved in the electronics manufacturing equipment industry accounted for 19.1% of PLCs, mainly including small PLCs and medium and large PLCs, especially small PLCs, which are more widely used in the PLC market in the electronics manufacturing industry. Up to 69.8%. At present, there are more than 200 PLC manufacturers in the world, and more than 400 kinds of PLC products can be divided into three genre products in the United States, Europe, and Japan according to the region. Each genre PLC product has its own characteristics. The world's leading manufacturers of electronic manufacturing PLC technology are from the world's automation control system giants, such as Mitsubishi Electric, Siemens, B&R, Beckhoff, Yifumen and Advantech, and other international automation providers, all have a full range of PLC products. It can well cover a wide range of electronic manufacturing equipment control needs.

The advanced electronic manufacturing equipment equipped with the world's advanced PLC control technology will be fully displayed on March 18-20, 2020 at the product new product exhibition (productronica China 2020) held at the Shanghai New International Expo Center. As a platform for the application of electronic intelligent manufacturing industry-wide chain application solutions, Munich Shanghai Electronic Equipment Exhibition presented a new slogan of “Integration and Innovation, Smart Future”, which aims to stimulate innovation in the industry and actively promote and accelerate the intelligent manufacturing of electronics industry. Development and upgrading. Exhibits range from SMT surface mount technology, wire harness processing and connector manufacturing, electronics manufacturing automation, motion control, dispensing, soldering, electronics and chemical materials, EMS electronics manufacturing services, test and measurement, PCB manufacturing, EMC, and Device manufacturing (winding machine, stamping, filling, coating, sorting, marking, etc.) and assembly tools.

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