汽车零部件装配车间MES数据采集功能的开发

摘要

To improve the complex data acquisition process under the condition of multi-protocols in manufacturing execution system for automobile parts assembly workshop,we developed a data acquisition system for monitoring the process of automobile parts manufacturing on C# platform. Based on the principle analysis of different programmable logic controllers(PLC)on factory interface network service(FINS)protocol, MELSEC protocol and OLE for process control technology,the communication between host computer and PLC in multi-protocols was integrated,and the real-time reading and writing of the production process parameters and equipment status was realized. The results of actual running in an automobile parts assembly workshop indicated that the system met the requirement for real-time data collection in various automatic equipments.The developed system had a good performance in monitoring the equipment of production line with high stability and reliability for long time.%为解决汽车零部件装配车间制造执行系统中多协议条件下数据采集过程复杂性的问题,采用C#平台开发了用—汽车零部件制造过程监控的数据采集系统.通过对可编程逻辑控制器(PLC)FINS协议、MC协议及OPC技术原理的解析,实现了上位机与PLC在多协议条件下的通讯集成,完成了对PLC寄存器中有关生产工艺参数和设备状态数据的实时读写.在某汽车零部件装配车间实际运行的实例结果表明,该系统满足了生产线对多种自动化生产设备数据实时采集的需要,实现了对生产线设备状态的监控,且长期运行稳定可靠.