News

  • ABB launched IndustrialIT 800xA system operator interface

    Features and advantages Ergonomic design improves the efficiency of operators: The structured high-resolution screen of the 800xA Extended Operator Workplace presents a seamless and readable process diagram. The adjustable desktop height gives full play to the advantages of ergonomics, making ope...
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  • Briefly describe the development and characteristics of DCS system

    1 Brief description of DCS system development. DCS system is the abbreviation of Distributed Control System in English, and is the leading product of modern automation control technology. The development of automatic instruments has gone through three periods: the base instrument is the leading p...
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  • New “soft DCS” enters the market

    PC Soft plans to introduce an open distributed control system (DCS) to replace the traditional DCS, and adopt the de facto standard operating system and open standards to establish the DCS system on a single hardware platform. WizDCS or “soft DCS” is the result of its efforts. WizDCS ...
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  • How to learn DCS control system

    With the development of automation technology, the original PLC controller can no longer meet the requirements of some large projects. In this case, the DCS control system came into being. Dcs control system, also known as distributed control system, is a new type of computer control system relat...
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  • How to solve the anti-interference problem of PLC control system

    1. Overview With the development of science and technology, The application in industrial control is more and more extensive. PLC The reliability of the control system directly affects the safe production and economic operation of industrial enterprises, and the anti-interference ability of the s...
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  • Fault prevention in designing programmable control system

    In modern industrial production, a large number of programmable control systems have been used. Programmable controllers can work normally under harsh working conditions, but the control system formed by them sometimes fails due to design, installation, interference and other factors. Some proble...
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  • Explore the selection method of PLC system equipment

    The main purpose of PLC is to control the external system. This system may be a single machine, cluster or a production process. Different models of PLC have different application ranges. According to the production process requirements, analyze the complexity of the controlled object, count the ...
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  • Evaluation principle of PLC program quality

    The best evaluation standard of PLC program is practice to see whether the program can achieve the expected purpose, but this is not enough, because there are good and bad programs to achieve the purpose. What kind of program is a good program? There are generally the following aspects: 1. Correc...
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  • Analysis of internal equivalent relay circuit of PLC

    PLC is a special microcomputer, but when it is used to realize the function of relay contact control system, it is not necessary to study it from the perspective of computer, but instead, the internal structure of PLC is equivalent to a relay circuit. A trigger in the PLC is equivalent to a relay...
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  • Steps of PLC program on-site commissioning

    There are many personnel involved in the site commissioning, which should be well organized and have a commissioning outline. Step by step according to the outline. At the beginning of commissioning, the equipment can not be operated, or even live. It can be powered on, started up and loaded grad...
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  • Difference between cold start and warm start of CPU of Siemens PLC

    Cold start: All data (process image, bit memory, timer and counter) are initialized, including data blocks are reset to the initial values stored in the load memory, regardless of whether these data are configured to be maintainable or not. First, execute the startup organization block OB102. Not...
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  • Precautions for cooperation between PLC and frequency converter

    Under the current production conditions, when the frequency converter is used to form an automatic control system for control, the combination of PLC and frequency converter is required in many cases, such as bearing cleaning, packaging paper printing, PCB board manufacturing, etc. PLC can provid...
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