基于随机数发生器的设备地址自动分配方法

摘要

总线通讯常用于工业控制系统,系统常为一个主机、多个从机的结构.该文传统的总线通讯网络多采用拨码等手工方法设置设备地址,系统的自动组网及地址的自动分配一直是个难题.提出了一种新的基于随机数发生器的自动组网与设备地址分配方法.实现了设备的自动组网与地址的自动分配.该方法适用于无主机的控制系统,可自动选出主机,上电即可自动组网与分配地址,且所需时间更短,分配效率更高.实践证明,该方法稳定可靠,具有良好的应用和推广价值.%Bus communication is commonly used in industrial control systems,which is often a mainframe and a slave structure.The traditional bus communication network usually uses the manual method such as dialing code to set the address of the equipment.The automatic organization of the system and the automatic distribution of the address has always been a difficult problem.A new method of automatic network and device address allocation based on random number generator is proposed,which realizes the automatic distribution of the address.The method is applicable to the control system without host,which can automatically select the host,and can automatically organize and distribute the address on power supply,and the required time is shorter and the distribution efficiency is higher.Practice has proved that this method is stable and reliable,and has good application and popularization value.