| PC总线工控机与多台MCS－51单片机间的通信 |
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| 引用本文： | 甘勇,范承亚.PC总线工控机与多台MCS－51单片机间的通信[J].郑州轻工业学院学报(自然科学版),1995(1). |
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| 作者姓名： | 甘勇 范承亚 |
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| 作者单位： | 郑州轻工业学院控制工程系 |
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| 摘 要： | 介绍了硫化过程微机集散控制系统中ＰＣ总线工业控制计算机与多台ＭＣＳ－５１单片机为核心的硫化控制仪之间的多机通信的方法与实现。本控制系统采用主从应答通信方式，由上位机通过星形网络轮换与各个下位机进行通信，通过接口电路将ＰＣ总线工控机中的ＲＳ－２３２异步串行通信适配器转换为ＲＳ－４２３通信标准，并实现１到８路转换，该接口电路从硬件上保证了各信道不存在竞争冲突，从而保证了通信的可靠性。文中还介绍了通信信息包的数据格式和通信软件的设计方法。本通信系统结构简单，编程方便，是一种经济可行的数据通信方法，在实际应用中值得借鉴。
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| 关 键 词： | 控制系统 数据通信 通信软件 |
COMMUNICATION BETWEEN PC BUS INDUSTRIAL COMPUTER AND MCS-51SIN GLE CHIP COMPUTEKS |
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| GanYong, FanChengya.COMMUNICATION BETWEEN PC BUS INDUSTRIAL COMPUTER AND MCS-51SIN GLE CHIP COMPUTEKS[J].Journal of Zhengzhou Institute of Light Industry(Natural Science),1995(1). |
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| Authors: | GanYong FanChengya |
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| Affiliation: | Conrol Engin ineering Dep artment of ZILI |
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| Abstract: | The method of data communication between PC bus industrial computer and MCS-51single chip computers in rubber vulcanization distributed control system is introduced.Thehost computer communicate to each MCS-51 single chip computers in order by a star net-work in this control svstem,A interface circuit transfer RS-232 asvnchronous communica-tion receiver-transm itter which in PC bus industrial computer to RS-423 communicationrule and realize one to eight selection,There are no competition in eight communication chan-nels.So the communication is very reliable. The structure of this system is simply,program-ming is very easy,it is a useful method of data communication. |
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| Keywords: | control systems data communication communication software |
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