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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

Inactive Publication Date: 2005-05-25
FISHER-ROSEMOUNT SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] While these online self-tests can be initiated using maintenance software such as the Asset Management software produced and sold by Rosemount Corporation, the maintainer must connect the units and send a specific request to the unit that needs to initiate the self-test
As a result, when a maintainer establishes a specific and typically temporary connection to that device and requests testing, testing is only performed on field devices that have these on-line testing capabilities, which is neither adequate nor in the presence of the maintainer (for whatever reason) When the appropriate time detection device does not let the control or safety system know when the last test has been performed or the result of the test is known, it will still leave a device failure for the fragile process control system or safety system

Method used

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  • Online device test block integrated into process control safety system
  • Online device test block integrated into process control safety system
  • Online device test block integrated into process control safety system

Examples

Experimental program
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Effect test

Embodiment Construction

[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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PUM

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Abstract

A process control or safety system within a process plant using one or more detection blocks to affect the timely and safe operation of on-line detection procedures within field devices such as valves used in the process control or safety system. These detection blocks are easy to implement and easy to place in a process control or safety system. The detection blocks enable periodic or on-demand detection of field devices to be integrated into normal and ongoing operation of the process control or safety system without causing Scheduling or connection issues, and without relying on maintenance staff or other personnel, thereby providing better monitoring of the operational status of field devices used in process control and safety systems. This function is especially important in safety systems where, when an unsafe condition occurs, it may be desirable to monitor or estimate in time the operational status of the devices used to shut down the process in order to ensure the safety of the shutdown operation by the safety system that actually causes the system to shut down. start up.

Description

technical field [0001] The present invention relates generally to process control and safety systems used in process plants, and more particularly to an inspection body for controlling the inspection operations of in-line devices within a process plant. Background technique [0002] Similar to process control systems used in chemical, crude oil, or other processing, process control systems typically include one or more process controllers communicatively connected via an analog, digital, or combined analog / digital bus or wirelessly to at least one The host or operator workstation is connected to one or more field devices. Field devices may be, for example, valves, valve positioners, switches, and transmitters (eg, temperature, pressure, and flow rate sensors) for performing functions such as opening or closing valves and measuring process parameters in a process plant. The process controller receives signals indicative of process measurements made by the field devices and / o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00G05B9/02G05B15/02G05B19/048G05B23/00G05B23/02G06F11/27G06F15/00G06F19/00H04L12/26
CPCG05B9/02G05B23/0256G05B2219/24054G05B2219/33331G05B23/00G05B23/02G06F11/27
Inventor 迈克尔·G·奥特加里·劳丹尼斯·史蒂文森里亚兹·阿里马克·尼克松蒂姆·福塞特
Owner FISHER-ROSEMOUNT SYST INC
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