GE IS220PDIOH1B control module
6. With the integration and development of IT and OT technology, the industrial Internet of Things has become the trend of the times, and the related technologies of PLC communication and the Internet of Things will be popular in the future. Common PLC controller communication includes communication between PLC controllers and communication between PLC controllers and other intelligent devices. With the development of industrial control automation, all PLC controller manufacturers attach great importance to the communication function of PLC controllers and have launched their own network systems. The new PLC controller has a communication interface, which is very convenient for communication. Miniaturization and integration will be higher and higher. With the requirements of the market for miniaturization and integration, PLC technology will be more integrated into industrial, automotive, communications and other products. PLC products are characterized by control and data processing. While meeting the functions, the process requirements are also more detailed. With the development of intelligent factories and the Internet of Things, new requirements have been put forward for the technical development of PLC in the fields of joint control of factory equipment, data interaction between PLC and mainframe and other intelligent products, and big data application. This is a new opportunity and a huge challenge. This requires that PLC products have strong environmental adaptability, stability and reliability, can easily access various networks while maintaining a high cost performance ratio, and give full play to the role of PLC products in data acquisition and data interaction.
(1) The main characteristics of plc. Plc is characterized by reliable operation, fast operation, building block structure, flexible combination, good compatibility, simple and rich programming and generation, and strong network functions.
(2) The main functions of plc. Plc system can well complete industrial real-time sequence control, state control, count control, step control and other functions; It can complete analog/digital (a/d), digital/analog (d/a) conversion, data processing, communication networking, real-time monitoring and other functions. Years of practice has shown that plc is reliable, specially designed for factories, with reinforced parts according to the requirements of the working environment, real-time scanning practice and fault diagnosis functions, as well as simple troubleshooting, and is favored by users. The reason why plc is so reliable is that it is a real-time core or operating system, which can execute relay logic, sequence function diagram, function block, structure text, command directory or their combination. In case of failure, its built-in equipment can maintain mechanical damage, and can maintain an orderly and predictable sequence.
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