【摘要】 自行设计了基于串行总线结构的双路热动力试验台集散控制系统 ,采用RS -4 2 2协议进行管理站与现场控制台的分布式智能仪表的远距离通讯和控制。管理站还设计了一套独立的高精度的数据采集系统 ,它由IEEE -4 88接口与管理站计算机通讯 ,管理站计算机以此为标准修正智能仪表及协调现场控制台控制。实现了对温度、压力、流量等的集散控制。更多还原

【Abstract】 Distributed control system based on serial input output(SIO)bus is designed in double aero-thermodynamics test-unit.RS422 protocol are used for the communication and control among management station and field control station.An independent high accuracy data acquisition system is also designed in management station to correct and coordinate the field station by using the high speed IEEE-488 GPIB bus.Distributed control of temperature,pressure and flow is realized in the test-unit.更多还原