摘要
在实际设计中采用一种总线分时传送数据的方法,将象拨码开关和数码管一类外部设备,通过一组公共连接线(总线)与PLC的I/O相连接,大大地减少了所需PLC的I/O数量,减少了设备投资,在实际的设计工作中收到了非常好的效果。本文对采用这种总线方式传送数据的具体实现方法作了深入而全面的介绍。
In the practical use,the connection of peripheral equipments,like dial switchand nixie tube,with I/O of PLC through a set of common connecting lines (bus) reduced ob-viously quanta of I/O of required PLC, lowering equipment investment and obtaining positiveresults in the practical design. The concrete realizing method of data transmission is all-sideintroduced.
出处
《鞍钢技术》
CAS
1997年第7期26-30,共5页
Angang Technology
关键词
PLC
分时传输数据法
控制系统
dial switch time-sharing transmission data computer hardware