Online device test block integrated into process control safety system
一种自检测、现场装置的技术,应用在控制/调节系统、通用控制系统、测试/监控控制系统等方向,能够解决不充分地或不在适当时间检测装置也不使控制或安全系统知道何时已执行过最后的检测等问题
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[0015] Please refer to figure 1 , the process plant 10 includes a process control system 12 that integrates a safety system 14 (represented by dashed lines), which typically operates as a safety measurement system (SIS) to monitor and override the control provided by the process control system 12 , so that the processing plant 10 can operate safely to the greatest extent possible. The process plant 10 (which may also be referred to as a process control / safety system 10) also includes one or more host workstations, computers or user interfaces 16 (which can be any type of personal computer, workstation, PDA, etc.), which can be accessed by plant personnel. Access, plant personnel such as process control operators, maintenance personnel, safety engineers, etc. exist figure 1 In the illustrated example, the two user interfaces shown are connected to two separate process control / safety control nodes 18 and 20 and to a configuration database 21 via a common communication line or ...
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