摘要
介绍了在现场检测仪表中应用与现行４～２０ｍＡ模拟信号兼容的数字通信ＨＡＲＴ协议的研制工作。应用ＨＡＲＴ协议能使仪表既保留传统两线制传输的优点，并且还可实现多主通信、多点控制，易于对远距离现场仪表进行组态控制。
Research work on the application of HART protocol that is compatible with the currently operating 4～ 20 mA analog signal in field measuring instruments are described. By making use of the HART protocol not only can retain the advantages of the traditional two wire system transmission, but also can realize multimaster communication, multipoint control and configuration control of remote field instruments.
基金
吉林省科技发展计划资助
