【摘要】 介绍了一种开放式PLC控制与通信总线。阐述了该总线的通信原理、网络结构及特点,给出了总线应用的具体实例——掺混控制系统以及通信初始化程序。应用结果表明,该掺混控制系统保护功能齐全、通信速率快、布线方便。更多还原

【Abstract】 An open PLC control and communication bus was introduced.The communication principle,network configuration and characteristic of the bus were expounded.The specific example of bus application——hybrid control system was given,and communication initialization program was given too.Application result shows that the hybrid control system has merits of complete protection function,rapid communication speed and convenient wiring.更多还原