| PLC在EMIS车站信号微机联锁控制系统中的应用 |
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| 引用本文： | 王思明,张金敏.PLC在EMIS车站信号微机联锁控制系统中的应用[J].电气传动自动化,1998,20(3):53-56. |
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| 作者姓名： | 王思明 张金敏 |
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| 作者单位： | 兰州铁道学院!730070 |
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| 摘 要： | EMIS车站信号微机联锁控制系统、采用PLC作为下位联锁系统。本文说明了PLC在系统中所起的作用,并介绍了PLC系统的软、硬件结构,阐明PLC与上位联锁系统的通信及解决通信死锁的方法,并对系统的故障-安全性、可靠性进行了探讨。
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| 关 键 词： | 可编程控制器(PLC) 通讯 微机联锁 故障—安全 可靠性 |
The Application of PLC in EMIS Microcomputer Railway Signal Interlocking System |
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| Wang Siming,Zhang Jinmin.The Application of PLC in EMIS Microcomputer Railway Signal Interlocking System[J].Electrical Drive Automation,1998,20(3):53-56. |
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| Authors: | Wang Siming Zhang Jinmin |
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| Affiliation: | Lanzhou Railway Institute |
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| Abstract: | EMIS microcomputer railway signal in terlocking system uses Siemens programmable toiler as it's lower - level interlocking system . The function of the lower - level interlocking system and the hardware and software structure of the system are described in the paper . The designing method of the communication program between the upper - level interlocking system and lower - level interlocking PLC is presented , and the technique used for solving the dead locks in the communication is discussed in detail . The overall architechture of PLC system aiming at a high degree of safety, reliability is shown . |
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| Keywords: | programmable logical controller(PLC) communication microcomputer interlocking failsafe reliability |
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