analysis of the plc programmable control program in the application of tape transport system（plc可编程控制程序的分析胶带运输系统的应用）.docVIP

Analysis of the PLC programmable control program in the application of tape transport system Paper Keywords protection belt conveyor PLC application Abstract coal belt conveyor control a wide range of operating systems. The use of reliable and stable control system to improve the efficiency of the belt running in the production of coal mine safety is important. This article discusses the application of the PLC control system to improve the belt transport system safety and reliability . 1 Overview The belt conveyor system is now used in most single-chip control, operational stability is not high, intelligence is not strong, especially in poor stability of integrated protection, various protection sensor failure occurs frequently, and host control of modular, plug-ins easily damaged, replace the frequency high due to modular design, a small part of the module is bad, companies often must replace the entire large module, resulting in waste of resources, increased investment in coal production costs, while the use of PLC programmable control program integrated protection device, it can automation and control applications for the safe, reliable and more complete solution for the current needs of industrial automation business. Its main advantages include: 1.1 high reliability, strong anti-interference High reliability is the key to the electrical control equipment performance. PLC control system because the use of modern large scale integrated circuit technology, the internal circuitry with advanced anti-jamming technology, in order to work longer hours without failure, using a programmable double fault-tolerant technology. In addition, PLC control system with self-detection hardware failure, failure to issue timely warning information in the application software, applications are also incorporated into the peripheral device fault diagnosis procedures, in addition to the system outside the circuit and PLC equipment fault diagnosis also received protect