摘要
本文介绍以平网印花机为工程背景的基于485-BD通讯接口的PLC多机通讯方案,提出了解决通讯信号冲突的方法,设 计了通讯命令以及状态处理方面的方案。该系统在实际运行中完全达到设计要求。
This paper introduces the multi PLC communication method with 486-BD in flat printing machine,puts forward the solving method of signal conflict,designs the communication commands. This system has run in gear according with expectation.
出处
《仪器仪表用户》
2003年第1期36-38,共3页
Instrumentation
关键词
PLC
参机通讯
信号冲突
通讯命令
PLC, Multi PLC communication, Signal conflict, Communication command
