基于Wincc平台开发的PC-PLC通讯状态在线检测技术  

Online Detection Technology for PC-PLC Communication State Based on Wincc Platform

作　　者：叶海燕 YE Haiyan(Shanghai Jinyi Inspection Technology Co.,Ltd.,Shanghai 201999,China)

机构地区：[1]上海金艺检测技术有限公司,上海宝山201999

出　　处：《冶金动力》2018年第5期60-62,65,共4页Metallurgical Power

摘　　要：马迹山电网有功冲击动态监控系统根据通讯状态实时进行数据显示和控制方式切换,但因缺乏一个网络通讯状态的变量参与系统控制,通讯出现故障时,上位机不能反映真实设备状态和自动进行控制方式切换,导致区域电网因冲击负荷造成电压和频率恶性下降,并可能导致系统崩溃,严重影响生产。介绍了一种基于Wincc平台开发的PC-PLC通讯状态在线检测技术,利用Wincc全局脚本编程将网络通讯状态以变量的形式表现出来,参与系统控制和监控显示,确保了控制信号的可靠性和实时性。The surge load dynamic monitoring system in Majishan power grid displayed real-time data and switched control modes based on communication status,because of the lack of a communication state variable in network control system,however,when communication failed the PC could not reflect the actual status of the equipment and failed to switch control modes automatically,which may cause a vicious drop in voltage and frequency,even system collapse,severely affecting production.An online detection technology of PC-PLC communication state based on Wincc platform is introduced,which uses the global script programming Wincc platform to present the network communication status in variable forms and take part in control system,ensuring the reliability and real-time of production control signals.[Keywords

关 键 词：通讯状态 控制 实时性 准确性 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]