In this paper , the author gives a detailed introduction of an interface circuit board and a support software both based on hart communication protocol and serial interface communication protocol . the hardware and software together play a key role in the communication between operator station and field instruments 接口卡件能够在嵌入原来的国产分散控制系统supmax500并且不影响其对远程仪表的模拟量进行控制的基础上,支持符合hart协议的智能仪表与dcs中的分散处理单元和上位机进行通信。
The finished interface circuit board and support software with the unfinished instruments management software running in operator station make up of the socalled remote management system of field instruments which will enhance the ability of dcs , improve the synthesized automation level of the whole system and competition capacity of enterprises Hart接口卡件及相关软件已通过初期的调试,基本上实现了预定的功能。本课题的工作为实现hart现场总线与supmax500的集成打下了坚实的基础、成功地迈出了第一步,具有一定的开创性和实用价值。