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SIS安全仪表，DCS，plc 的区别 PLC programmable logic controller, 通常作为成套设备的控制方案，比如说真空、废水、集装、压缩机等等 自成一个体系的系统。 他们的特点往往是不要求很多的模拟量控制，对数字量控制极为有效、 方便、可靠、经济。通常做为DCS的子站点，便于监视。 ESD emergencyshutdown system. sis论坛地址获取方法是这个吗？ 目前很多往址进不了 但是官方邮箱没有被查 大家发送任意内容到官方邮箱获取地址， 官方邮箱：si s001dz#C0M（ 更换成@） 艾皮（IP）：17… SIS 是Safety instrumented system的简称，中文意思是安全仪表系统， 它包括安全联锁系统、紧急停车系统 有毒有害、可燃气体及火灾检测保护系统 等，广泛应用于石油、化工等流程工业中。 安全仪表系统SIS, 用于监视生产装置或独立单元的操作，当生产正常时，SIS处于休眠或静止状态。一旦生产装置或.
四、SIS 的安全等级：SIL（安全完整性等级） SIS 的可靠性通过 SIL（Safety Integrity Level，安全完整性等级） 划分，分为 SIL 1 至 SIL 4 四个等级（SIL 4 最高）。等级越高，系统的安全性能越强，发生故障的概率越低。 SIL 等级由 “风险分析” 确定：根据生产过程的危险程度（如介质毒性、爆炸风险. SIS系统（安全仪表系统），是一个整体的概念，指的是由 满足一定安全规范标准 的现场仪表、 逻辑控制器 、执行机构等构成的的，用于现场生产安全的控制系统。 区别于一般 生产控制系统 （DCS、PLC），SIS系统旨在现场工况出现危害生产安全条件时，触发连锁逻辑进行适当的保护动作，如部分. 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容，聚集了中文互联网科技、商业、影视.
SIS与DCS等过程控制系统的区别 1、DCS用于生产过程的连续测量、常规控制（连续、顺序、间歇等）、操作控制管理，保证生产装置的平稳运行；SIS用于监视生产装置的运行状况，对出现异常工况迅速处理，使危害降到最低，使人员和生产装置处于安全状态。
SIS网站是否被卸载，引发网友讨论和寻找新的替代平台。 Got the bad new today denied on ccw permit it showed my felony conviction,but it was a sis, i dont have a conviction on my record ,but fbi can open sis and sealed records I purchases a firearm and past a ncic check with flying colors Why cant i get a ccw permit in missouri ??
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