【摘要】 介绍了一种基于EPA控制网络的阀门定位器通信卡的软硬件设计,有效地解决了现场设备同EPA控制网络之间的数据通信;在通信卡中嵌入ZIGBEE模块实现了与手持设备间进行数据交换,从而为现场设备数据采集提供了另一种途径。经OPC服务器监控测试,通信卡数据传输正常,可应用于现场设备向控制网络数据通信。更多还原

【Abstract】 The paper introduces the hardware and software design of Valve localizer communication card based EPA control network,and solve the data communication of field device and EPA control network.Also the communicated circuit board supply another ap-proach for field device data collection with handhold device through embedding ZIGBEE module.Testing with OPC server,communi-cation card can accurately transmit data and can be applied to data communication from field device to control network.更多还原