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本系统是采用上下位机通讯的一种集散控制系统,上下位机均采用了STD总线结构,上位机采用了V40 CPU系统;下位机有5台,由8088 CPU系统组成,分别控制5台格子磨;上下位机之间采用RS232口,经转换成RS422进行通讯,波特率采用9600bit/s;系统中上位机主要用于对5台下位机进行监控和管理,可显示每台磨的原料磨制配比工艺流程图,并可瞬时显示并打印每台下位机的数据、表格、报警以及集中的数据处理和公共系统的控制等。每台下
The system is based on the upper and lower computer communication of a distributed control system, the upper and lower bit machines are used STD bus structure, the host computer uses a V40 CPU system; lower machine has 5, composed of 8088 CPU system, respectively, control of 5 lattice Mill; Between the upper and lower computer using RS232 port, converted to RS422 for communication, the baud rate using 9600bit / s; PC in the system is mainly used for monitoring and management of the 5 lower machine can display each mill Grinding raw material ratio process flow chart, and instantaneous display and print each lower computer data, forms, alarms and centralized data processing and public system control. Each one