JPH03110700A - Fault display device - Google Patents

Abstract

PURPOSE:To reduce the burden of an operator and to make a fault display device compact by displaying only fault information and a fault order corresponding to a closed fault contact onto an idle display device. CONSTITUTION:A memory 40 stores the character fault information corresponding to respective fault contacts 31-3n. When the contents of an (n) address in an input device 50 is changed from an opening state '0' to a closing state '1', a CPU 30 reads out the corresponding character fault information, decides in which address the state change is generated, namely, decides the fault order and sends out the character information and fault order information to a communication channel 20. When the fault order is the first, a channel 1 is selected and the character fault information and the fault order information are sent to a CRT display 11 and displayed on the screen of the CRT display 11. In the case of the 9th order, these information are displayed on the screen of a CRT display 19. Thus, the burden of the operator is reduced and the device can be made compact.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a collective fault display device provided on the panel of a central control unit of a power plant, for example.

[Conventional technology]

FIG. 2 shows this type of collective failure indicator. In the figure, 1 is a failure indicator light row in which n failure indicator lights are arranged horizontally. 2 is an alarm relay row in which n alarm relays are lined up. 3 is n failure contacts 37.3□, 3
3...37 are lined up in a row of faulty contacts. 4 is a switch for checking failures and the like.

When the abnormality detection sensor installed at the monitoring point of the power plant generates an abnormal signal, the corresponding fault contact closes,
The corresponding alarm relay operates, a buzzer etc. sounds, and the corresponding fault indicator light lights up.

The operator operates the switch 4 to stop the buzzer and learns the type and location of the failure from the illuminated failure indicator light.

[Problem to be solved by the invention]

In this way, conventional fault indicating devices have one
Since there are fault indicator lights and alarm relays that correspond to each other, as the number of fault monitoring points increases, the number of these will increase and the device will become larger. The amount of information increases correspondingly, and it takes time for the operator to accurately grasp the failure information, and it becomes difficult to grasp the order of occurrence of failures, which increases the burden on the operator.

This invention was made to solve the above problem.
It is an object of the present invention to provide a failure display device that can reduce the burden on an operator and downsize the device.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a display assembly in which a plurality of CRT displays are arranged, an input device that inputs the status of a plurality of faulty contacts into each address, and text fault information for each faulty contact at the above address of the input device. The CRT has a microprocessor that reads out the character information in the memory corresponding to the address whose contents have changed to the failure details, and displays the character failure information and the failure order on the CRT display. The display is configured to be sequentially and cyclically selected.

[Effect]

In this invention, a number of display spaces corresponding to the number of faulty contacts are not provided, and only fault information corresponding to the closed faulty contacts is sequentially displayed on the CRT display screen.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 10 denotes a CRT display assembly, in which a plurality of independent CRT displays 11 to 19 are arranged in three columns and three rows. 20 is a communication channel, 3
0 is a microprocessor CPU, 40 is a memory, 50 is an input device (D/I unit), and 60 is a communication bus.

In addition to the programs of the CPU 30, the memory 4 also stores fault contacts 32.
．． Character failure information corresponding to each of 3t, 33, . . . 37 is stored. The D/I unit 50 has a fault contact 31
．． 3□, 3. ...3. , (for example, n=50) is taken into the corresponding address and the open state is "O",
The closed state rlJ is monitored.

Now, the content of address n of the D/I unit 50 is open state "0"
When the state changes from “1” to the closed state “1”, the CPU 30 closes the memory 4
The memory address corresponding to address n of 0 is accessed to read the character failure information, and the number of times the state change from rOJ to "1" has occurred, that is, the failure order, is determined, and the character information is read out. and failure order information on communication channel 2.
Send to. If the failure order is first, the channel ■
is selected, and the above text failure information and failure order information are sent to the CRT display 11 through channel
It is displayed on the screen of the RT display 11. If the text fault information is the ninth one read out (corresponding to the ninth fault contact in the order of failure occurrence), it is displayed on the screen of the CRT display 19, and the text fault information is the tenth read out. (corresponding to the ninth faulty contact in the order of fault occurrence), it is displayed on the screen of the CRT display 11. Of course, when the state changes from "1" to "0", the display on the CRT display disappears.

Although the number of CRT displays (9 pieces) in this example is smaller than the number of faulty contacts (50 pieces), there is no problem in practical use because 10 or more faulty contacts will not change from rOJ to "1" at the same time. None.

〔Effect of the invention〕

As explained above, this invention has a configuration in which only the failure information and failure order corresponding to a closed failure contact among a large number of failure contacts are displayed on an empty CRT display, and the number of CRT displays is small. Because it's done,
The burden on the operator can be reduced, and the device can be made smaller and simpler.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional failure display device. In the figure, 3. ~37-・Fault contact, 11-19...
-・CRT display, 20-・Communication channel, 3
0...-Microprocessor, 40...-Memory,
50--input device, 60-communication bus. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] A display assembly in which multiple CRT displays are arranged, an input device that captures the status of multiple faulty contacts at their respective addresses, a memory that stores textual fault information for each faulty contact in correspondence with the address of the input device, and the contents are faulty. a microprocessor for reading out the character information in the memory corresponding to the address whose content has changed and displaying the character failure information and the failure order on the CRT display, the CRT display being sequentially and cyclically selected; A fault display device characterized by: