45C224 RELIANCE module

Programmable Automation Controller (PAC) as a new generation of industrial controller, represents the development of programmable automation control in the future. In the foreseeable years, the requirements of standard, openness, interoperability, portability will be an important feature of automation products that users are most concerned about. PAC system, which integrates the advantages of PC and PLC, will gradually replace PLC system and become the mainstream products of control systems. The application of industrial automation control will be more and more extensive.

PLC performance depends on the special hardware, PLC application is to rely on the special hardware chip to achieve, for the PLC function improvement, such as increasing the motion control, process control or communication function, all need to use different hardware. Even for the same PLC manufacturer, this special hardware is difficult to transplant to different performance PLC. And the traditional PLC manufacturer's hardware structure system is a proprietary design, even the processor chip is dedicated, which leads to the continuous improvement of PLC functional requirements, PLC hardware system has become more and more complex. In addition, the non-generality of hardware will lead to the system's functional prospect and openness are greatly limited. In addition, the PLC operating system is usually the PLC manufacturer's special operating system, and the current popular real-time operating system is not compatible. Because it is a special operating system, the reliability and function of the real time can not be compared with the general real-time operating system, which leads to the overall performance of PLC specificity and closure.

The PAC's lightweight control engine is outstanding. PAC has designed a common, software-based control engine for application execution. The control engine is between the real-time operating system and the application. This control engine is hardware platform independent and can be portable between PAC systems on different platforms. Therefore, for users, the same application does not need to choose PAC platform with different performance according to the functional requirements and investment budget of the system. In this way, according to the rapid expansion and change of user needs, the user's system and program without change, can be seamlessly transplanted. PAC's operating system adopts the general real-time operating system. For example, GE Fanuc's PACSystems series products adopt the general and mature WindRiver company's VxWorks real-time operating system, whose reliability has been proved by a large number of applications around the world. The hardware structure of PAC system adopts the standard and general embedded system structure design, so that its processor can use the latest high-performance CPU. For example, the CPU of GE Fanuc's PACSystems series products uses the Pentium300/700MHz processor. And a PentiumM processor CPU is on the way.

For example, Advantech's new generation PAC controller APAX-5000 series combines control, information processing, network communication, video and voice functions. This series also has the first dual independent CPU control architecture, respectively control the different tasks of HMI/SCADA and I/O, and provide a variety of application architecture such as heat supply and backup. The software part provides the soft logic software supporting the national standard IEC-6111.3 and the development driver software in the Window.Net environment which can carry out advanced programming. APAX-5000 is ideal for demanding batch production applications such as semiconductor process equipment, pharmaceuticals, wind control, steel, IC inspection machine control and food and beverage industries.

State Forestry Administration government network on December 4, November 21, Shandong provincial forestry prevention station held in Zaozhuang City based on PLC comprehensive three-dimensional prevention and control technology training class of forestry pests. Relevant experts, the director of forestry bureau of 9 counties (cities and districts) of the project, the director of forest farm and the person in charge of the project attended the training.

PLC, short for Programmable Logic Controller, is a digital electronic device with a microprocessor. It is a digital logic controller used for automatic control and can load control instructions into memory at any time for storage and execution. Based on the comprehensive three-dimensional prevention and control technology of PLC, forest pests will be timely, systematic and scientific monitoring, information data scientific, rapid processing, improve the timeliness and accuracy of information, further promote the active disaster prevention, scientific disaster prevention, reduce the cost of prevention and control, maintain ecological security. The promotion of 9 project areas will complete the project tasks within one year.

Shandong Forest Defense Station deployed PLC to promote the implementation of the project, emphasizing the rational use of project funds and establishing good project files. The professor of Shandong Agricultural University explained in detail the idea, construction and application technology of forest pest monitoring and forecasting system based on PLC technology. Shanghe County Forestry Bureau demonstrated the construction and conception of intelligent service platform for forestry pests based on mobile Internet. Shandong Xiangchen Company introduced the application technology of three-dimensional prevention and control equipment.

This training further clarified the basic knowledge of the comprehensive three-dimensional prevention and control technology of forestry pests based on PLC, which laid a good foundation for the comprehensive completion of the project tasks and the improvement of the intelligent level of forestry pest control work. (Sen Defense Station)