JPH0352496A - Data display system at the time of alarming - Google Patents

Abstract

PURPOSE:To grasp a cause of a fault quickly from a trend data of a process variable relating to alarm and to take proper correspondence operation rapidly by providing a data display device extracting a data commanded with a data display instruction device, and displaying the data as the lapse of time. CONSTITUTION:An operation signal for each items of a process variable is inputted from an alarm items display device 3 to a data display command device 4 and an instruction as to at which range a data of a process variable being an object of alarm is to be collected is given to a data collection controller 8 through an input device 7. The data collection controller 8 issues the command to a data collection device 9 and a data storage device 10 to collect the data of the process variable according to the instruction. Upon the receipt of the instruction data, a data display controller 5 sends the data to a data display device 6, which displays the received trend data as a graph representing levels as laps of time legibly. Thus, a cause to an error is grasped quickly from the trend data of the process variable relating to alarm and quick and proper countermeasure is taken.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention is aimed at detecting changes over time in process quantities up to the alarm when an abnormality occurs in the process quantity and an alarm occurs in various plants. This invention relates to a data display system at the time of an alarm, which makes it possible to take a prompt response by notifying the user.

(Conventional technology) When the process quantities such as pressure and temperature of fluids such as water and steam used in power plants and various factories exceed predetermined limits, an alarm is issued and control panels and computer systems are activated. Displays on the system's alarm display device that the process amount of a predetermined item (name) exceeds the limit value. When there is an alarm, the watchman looks at this display and tries to restore normal conditions.

However, such alarm systems only know that a predetermined process quantity has exceeded a limit armor. For this reason, the monitor operates the various indicators on the monitoring panel to check the process quantity that caused the alarm and the changes in the related process quantity (trend data) leading up to the alarm.
The cause of the abnormality cannot be determined unless the recorded data is examined or calculations are made using a meter, and appropriate countermeasures are taken (operating auxiliary equipment or lill control equipment to return the process value to normal values). I can't take it. Therefore, it takes a lot of time before an appropriate response can be taken.For this reason, in the case of an abnormality that requires prompt action, response operations are not carried out in time, and the protection of Bran 1- There was a possibility that the equipment would be operated or the bran would be stopped.

(Problems to be Solved by the Invention) As described above, conventional alarm systems are only capable of displaying the name of the relevant process when an alarm occurs. 1. Rend data had to be obtained by calculating IR and J1 using another 1,000 steps, and it took time to take appropriate actions.

The present invention has been made in view of the above circumstances, and when an alarm occurs, the amount of waste over time that is the cause of the alarm is displayed on the mark, making it possible to easily take appropriate response operations. The purpose is to provide a data display system for alarms. +. -16.

[Structure of the invention]

(Intensive Means for Solving the Problems) In order to solve the above problems, the present invention provides a method for solving the problems described above.
Control the alarm item display device that indicates that an alarm has been issued and the data collection range for each cesspo! 2T1 data collection crime prevention device, data collection! A data collection device that collects data on each ops according to instructions from the i1 controller, a data storage device that stores the data collected in the bacteria record/overnight collection device, and the alarm items mentioned above. It is linked to the process displayed on the display device!
A data display command device ε for commanding the display of data at 1 o'clock, and a # data display m from the data collection device and the data storage device.
Pull out the commanded by the command device and display it over time 1
The present invention provides a getter display system at the time of an alarm, which is equipped with a data display decoy. :)． , (Function) The data display system h at the time of W alarm of the present invention is added to the alarm display device in the conventional alarm system, and the data collection range for each process trench is set by filJt [I data collection system h] a data collection device that collects data for each process according to instructions from the data collection control device, and a data storage device that stores the data collected by this data collection device. A data display command device that commands the display of chronological data related to the 1st-moku process, and a data display device that extracts the data commanded by the data display command device from the data collection device and the data storage device and displays it over time. Equipped with. Therefore, the observer can quickly grasp the cause of the abnormality from the process risk trend data related to the ¥1 report, and can promptly take appropriate countermeasures.

(Example) An embodiment of the present invention will be described below with reference to FIG.

FIG. 1 is a configuration diagram of a data display system at the time of an alarm according to the present invention.

The data display system for this 11th report consists of the following nine devices and devices. In other words, a detector 2 attached to the pipe 1, an expense report item display device 3, a data display command device 4, a data display system 1 [I device 5...'y' data display device 6, an input They are a data collection equipment 7, a data collection equipment υ1 equipment M8, a data collection equipment 9, and a data storage device 10.

Detector 2 detects the leakage symptoms such as mirrors, temperature, pressure, etc. when the fluid is flowing. When the temperature exceeds a predetermined limit, a signal is sent to an alarm device (not shown) to issue an alarm, and a signal indicating the item of the process in which the abnormality has been detected is displayed in the visual report item. The alarm item display device 3 receives this signal and displays the process item 1 related to the alarm.
Display 1.

Alarm item display device 1! From t3, the work message q for each item ε of the waste fog is input to the data display command veff4, but the data display command device 4 is informed of the process amount item related to the alarm from the detector 2. Shinzuki is also input. Therefore, the data display command device 4 compares both signals to identify the process amount related to the occurrence of the alarm and the process status related thereto, and issues a command to the data display control device 5 to display the trend data.

By the way, the system according to this embodiment displays trend data of the process amount when issuing an alarm, but what kind of range (items of the process amount for which data is collected, data collected) for the process amount that is the target of the alarm? Whether or not to collect data during a certain period (such as a certain period) is given to the data collection control device 1f8 through the input device Wt7. Data collection control device 8 transmits this instruction to data collection device 9 and data storage device 110. The data collection device W9 collects process amount data according to this instruction.

The data collected by the data collection device 9 is sequentially sent to the data storage device 10. The data storage device 10 stores the data, but sequentially deletes old data that exceeds the period instructed by the data collection control device 8.

When the data display control device WI5 receives an instruction regarding data to be displayed from the data display command device 4 as described above, it transmits this instruction to the data collection device 9. Then, the data collection device sends the data at the time of receiving the instruction to the data display control device 5 as is, and retrieves the instructed pre-alarm reading data from the data storage device 110 and displays it in the data display control device 5. send to

When the data display control device 5 receives the instructed data, it sends it to the data display device 6. The data display device 116 is
The received trend data is expressed in a graph showing levels over time for easy viewing.

When there are multiple process quantities related to an alarm, displaying each process quantity in a different color will make it easier to see. In this case, if the alarm items that are most closely related to each other are written in the same color (for example, red), the monitor can easily draw attention to them.

In addition, if the corresponding process amount is too large to be displayed on one data display device, it may be displayed separately on two or more data display devices, or only a portion may be displayed directly on one data display device and other data may also be displayed. The data display is changed according to the observer's selection.

In addition, in case the relevant process quantity instructions for the relevant alarm item have not been input to the data collection control device 8, it is advisable to set up the system so that at least the process quantity data for the relevant alarm item is displayed. .

Further, the data display control device shown in this embodiment can be omitted, and the data display command device and the data collection device, and the data collection device and the data display device can be directly connected.

(Effects of the Invention) As explained above, the data display system at the time of an alarm according to the present invention includes, in addition to the alarm item display device in the conventional alarm system, a data collection control device that controls the data collection range for each process quantity. , a data collection device that collects data on each process amount according to instructions from the data collection control device, a data storage device that stores the data collected by this data collection device, and a process displayed on this alarm item display device. The present invention includes a data display command device that commands the display of time-related data related to quantity, and a data display device that extracts the data commanded by the data display command device from the data collection device and the data storage device and displays the data over time. Therefore, the supervisor can quickly grasp the cause of the abnormality from the trend data of the process amount related to the alarm, and can promptly take appropriate countermeasures.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a data display system at the time of an alarm according to an embodiment of the present invention. 3... Alarm item display device, 4... Data display command device, 6... Data display device, 8... Data collection control device, 9... Data collection device, 10... Data storage Device.

Claims (1)

[Claims] An alarm item display device that displays that an alarm has been issued for a predetermined process quantity; a data collection control device that controls the data collection range for each process quantity; A data collection device that collects data, a data storage device that stores the data collected by the data collection device, and a data display command that instructs the display of time-lapse data related to the process amount displayed on the alarm item display device. 1. A data display system at the time of an alarm, comprising: a data display device that retrieves data commanded by the data display command device from the data collection device and data storage device and displays the data over time.