ABB 07DC91 现货

ABB 07DC91 现货

||||||AB/ABB/GE/施耐德/本特利/ TRICONEX 巴赫曼/西屋/黑马 福克斯波罗  霍尼韦尔 等PLC 模块卡件||||||

★厦门仲鑫达自动化设备有限公司 ★

☆ 咨询联系人：苏妙玲

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摘要：控制系统时钟同步是生产装置停车原因分析的关键。以往各控制系统之间存在时间差，这给故障原因分析及工艺操作都带来了严重不便。本文对控制系统时钟同步功能的具体实现进行了相关阐述。
1引言
2015年的某一天，某化工厂PX装置加热炉F101A,F101B, F102, F103出现停炉事件。当时仪表人员分别检查了DCS、ESD和压缩机的SOE(事件顺序记录)，发现此三套控制系统时间不一样，相差达到8个多小时，这样给仪表人员调查事故原因带来了的不便，严重影响了处理事故的速度。
目前，随着各个厂家控制系统不断地更新换代，控制系统的操作站开始广泛使用通用的台式机电脑，而电脑时钟走不准是出了名的，每天的误差可达数秒，经过一段时间的累积就会出现较大的误差。因此我们决定加大力度解决时钟同步问题。

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