摘要
摘要：新型的远程I／O系统是将传统的4～20mA信号以及开关量信号通过相应的I／O模块转换成数字信息，再通过通讯网关将数字信息以各种通用的开发式通讯协议，如MODBUS,Profibus-DP、Profibus-DP V 1 ,Foundation Fieldbus 等。传输到DCS／PLC等系统中实现远程监控的一种技术手段。
New remote I/O system is the traditional 4-20 mA signal and switch signal by the corresponding I/ O modules converted into digital information, through communication gateway will digital information in a variety of common development of communication protocols, such as MODBUS, Profibus-DP, Profibus-DP V1 ,Foundation Fieldbus and transmitted to DCS/PLC and system realization of a type of remote monitoring technology.
作者
刘振兴
王中军
牟克田
LIU Zhen-xing WA NG Zhong-jun MOU Ke-tian(Qinghai Salt Lake Industry Co., Ltd. Chemical Branch, Golmud Qinghai 816000, China)
出处
《中国氯碱》
CAS
2016年第12期34-36,共3页
China Chlor-Alkali
关键词
远程I/O
信号采集
通讯协议
技术优势
成本优势
remote I/O
signal acquisition
communication protocol
technology advantage
cost advantage
