摘要
HART现场设备外部特性的设备描述,使主机能对各种现场设备进行操作,为实现主机的互操性,利用专用工具Lex和Yacc实现分析设备描述,建立多种设备的运行数据,使HART现场总线协议的组态软件能够配置多种设备。讨论了Lex和Yacc的词法分析和语法分析技术及设备描述语言,成功开发了能够分析HART协议设备描述的组态软件,实现了HART设备的互操作。
The device description of external characteristics of HART field equipment helps the host computer operate all kinds of field equipment. In order to implement interoperability of the host computer, by using dedicated tools of Lex and Yacc, analysis of device description and establishment of operational data of the equipment are implemented. Thus, various devices can be configured by configuration software based on HART protocol. The technologies of lexical analysis and syntax analysis of Lex and Yacc as well as device description language are discussed, the configuration software that can analyze HART device description is developed successfully, the interoperability of HART device is implemented.
出处
《自动化仪表》
CAS
2007年第6期28-30,34,共4页
Process Automation Instrumentation
