摘要： 阐述在轧染机监控系统中，使用VB6.0实现上位机与Omron CJ1M PLC、Danfoss变频器和Honeywell温控表的串行通信。上位机与PLC之间的串行通信基于内嵌FINS命令的Host Link协议，与变频器之间的串行通信基于FC协议，与温控表之间的串行通信基于Honeywell DC1020温控表通信协议。设计了上位机监控软件，并在轧染机控制系统中得到了应用。

关键词: 可编程控制器, 串行通信, 监控

Abstract: The series-communication is described in this paper, based on VB6.0, applied in the Roll dyeing mill monitor and control system, between Omron CJ1M PLC, Danfoss frequency converter and Honeywell temperature control meter. The series-communication between the host computer and Programmable Logic Controllor(PLC) is based on the host link protocol embedded FINS command. The series-communication between the host computer and converter is based on the FC protocol. The series-communication between the host computer and temperature control meter is based on the Honeywell DC1020 temperature control meter protocol. The monitor and control software for the host computer is designed and applied in the roll dyeing mill monitor and control system.

Key words: Programmable Logic Controllor(PLC), series-communication, monitor and control

中图分类号: 

• TP39