| 减少使用PLC输出点数的方法 |
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| 引用本文： | 蔡岱贤. 减少使用PLC输出点数的方法[J]. 机电工程技术, 2008, 37(12) |
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| 作者姓名： | 蔡岱贤 |
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| 作者单位： | 汕头市第二技工学校,广东,汕头,515041 |
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| 摘 要： | 为满足压缩输出点这一前提条件,采用"软件编码、硬件解码"的方法设计PLC的数码输出显示电路.配合五层电梯控制系统中"层楼信号的产生与清除的显示"环节,给出了软件的设计方法及硬件的连接图,使读者更加清晰地了解BCD指令的应用及其外郝硬件的接线方法,减少了输出点数的使用.
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| 关 键 词： | PLC 软件编码 硬件解码 减少输出点 |
The Method to Reduce the Output Points of the PLC |
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| CAI Dai-xian. The Method to Reduce the Output Points of the PLC[J]. Mechanical & Electrical Engineering Technology, 2008, 37(12) |
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| Authors: | CAI Dai-xian |
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| Affiliation: | Shantou No.2 Technic School;Shantou 515041;China |
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| Abstract: | In order to satisfy the prerequisite of output compression,use software code and hardware decoding methods to design PLC digital output display circuit.According with the the level building signal production and the elimination demonstration of five elevators control system,this paper provides the design method of software and the hardware connection diagram.So as to reduce the output points and make the readers to understand the use of BCD instruction and its exterior hardware wiring method more clearly |
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| Keywords: | PLC |
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