JPS5818645B2 - Power supply error display method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a system for displaying power supply abnormalities (errors) in electronic computer systems, and is intended to make it possible to display power supply abnormalities by using existing display devices as much as possible.

FIG. 1 shows the display devices of a conventional console panel, where 1 is a console panel, 2 is a central processing unit (C"PU), and 3 is a power supply control device.

The console panel 1 includes a numeric display A1. for displaying data and addresses. A4 are provided according to the number of digits, and when an abnormality occurs in the CPU, the details of the abnormality are also displayed on the numerical display devices A1 to A4.

Reference numeral 4 denotes a buzzer, which serves both to generate an operation confirmation sound when various operation buttons on the console panel are operated, and as an alarm for displaying an abnormality in the C'PU.

If the operator wants to stop the buzzer 4 from sounding after confirming the CPU abnormality, he or she presses the buzzer cut switch 5.

The present invention makes it possible to provide a power supply abnormality display function without increasing the cost of the device by also displaying power supply abnormalities using the display devices conventionally provided on the console panel. purpose.

To achieve this object, the present invention provides a computer system equipped with a multi-digit numerical display, a buzzer, and a buzzer cut switch for displaying data, addresses, etc. related to the CPU. In addition to wiring the required number of numeric displays so that they can also be used to display the details of power failures, the power status of the entire system can be monitored to detect major power failures that may lead to a system down, and other relatively minor power failures. A power supply control device capable of determining a power supply abnormality and detecting the contents of the abnormality, and a switching means for switching the dual-purpose numeric display to the power supply control device side and the CPU side; Wiring is done so that the display function of other numeric displays is stopped when the switch is switched to the power supply control device side, and when a relatively minor power abnormality is detected in the power supply control device, the contents are displayed on the numeric display that also serves as the power supply control device. If a serious power abnormality that could lead to a system shutdown is detected, the entire system will be powered off, the details of the abnormality will be displayed on the dual-purpose numeric display, and a buzzer will sound. A similar configuration is adopted.

This configuration (Accordingly, it doubles as a numeric display, but when the power failure content is displayed on the numeric display that also serves as a numeric display, the display function of the other numeric displays stops, so the displayed content may be confusing. It won't happen.

Next, embodiments of the present invention will be described in detail.

FIG. 2 shows a first embodiment of the present invention, and as in the case of FIG. 1, the console panel 1' includes numeric displays A1 to A4.
, a buzzer 4 and a buzzer cut switch 5.

In addition to these, an indicator lamp 6 made of a light emitting diode or the like is provided, and is connected to the power supply control device 3.
Lights up only when there is a relatively minor power failure in input/output devices, etc.

Further, the buzzer 4 is connected to the CPU 2 and the power supply control device 3 via an OR circuit 7, and can be driven by either the CPU 2 or the power supply control device 3.

Each of the numeric displays A1 to A4 is connected to the CPU 2, but the numeric display, for example A1, which also serves as an abnormality display, is connected to the CPU 2.
It is connected to the CPU 2 and the power supply control device 3 via the multiplexer 8 .

The buzzer cut switch 5 is connected to the power supply control device 3 in addition to the CPU 2, and is further connected to the numeric displays A2 to A4, which are not also used to display abnormalities, among the numeric displays.

It is also connected to one input terminal of an OR circuit 9 on the input side of the multiplexer 8 .

The other input terminal of this OR circuit 9 is connected to the power supply control device 3.

Under normal conditions, the multiplexer 8 switches the dual-purpose numeric display A1 to the CPU side in response to a signal from the power supply control device 3. Therefore, all the numeric displays A1 to A4 switch the numeric display A1 to the CPU side.
Data display from the PU, address display, or other abnormality display other than power supply abnormality is performed.

As described above, in the present invention, the power supply control device 3 distinguishes a power supply abnormality into a serious power supply abnormality that causes a system down, and a relatively minor power supply abnormality, such as a power supply abnormality in an input/output device system. , abnormal contents are also detected.

Now, if a power supply error occurs in an input/output device, the power supply control device 3 will determine whether the problem has occurred, and a signal from the power supply control device 3 will cause the buzzer 4 to sound and the lamp 6 to light up, indicating that there is an error in the input/output device. Inform.

When the operator confirms this and presses the buzzer cut switch 5, the signal is input to the power supply control device 3 to stop the buzzer sounding, and is also input to the multiplexer 8 via the OR gate 9 and displayed on the double-purpose numeric display. Switch A1 to the power supply control device 3 side.

Further, input is made to the numeric display devices A2 to A4 other than those used for common use, and the display function thereof is stopped.

As a result, information indicating the nature of the abnormality is input from the power supply control device 3 to the dual-purpose numeric display A1 via the multiplexer 8, and is displayed as a one-digit number.

By doing so, you can find out which input/output device has the problem.
Disconnect the device from the system and restore power to the abnormal device while the system remains operational.

Also, if you disconnect the malfunctioning input/output device from the system,
Since the power supply control device 3 is in a state where no abnormality is detected, the indicator lamp 6 also goes out.

The buzzer cut switch 5 is opened again, but as a result, each of the numeric displays A1 to A4 are all connected to the CPU 2 and used for displaying information regarding the CPU.

Next, when the power supply control device 3 detects a serious power supply abnormality that will cause the system to go down, the power supply control device 3
Power to U2 and all input/output devices is cut off.

Furthermore, the buzzer 4 is sounded to notify the operator, and the content of the abnormality is also notified and displayed on the dual-purpose numeric display A1.

That is, the dual-purpose numeric display A1 is switched to the power supply control device 3 side by the multiplexer 8, and power is also supplied from the power supply control device 3, so even if the power to the CPU is cut off, the other numeric display Unlike A2 to A4, it can be displayed.

The operator can identify the location of the abnormality using the dual-purpose numeric display A1, and when he presses the buzzer cut switch 5, the buzzer stops sounding.

FIG. 3 shows a second embodiment of the present invention, and the difference from FIG. 2 is that the signal to stop the display function of the numeric displays A2 to A4 that are not used also and the control signal for the multiplexer 8 are sent only from the power supply control device 3. The only difference is that the buzzer cut switch 5 is used only for buzzer cut.

When a power failure occurs in the input/output device, a multiplexer control signal from the power supply control device 3 causes the dual-purpose numeric display A to
1 is a power supply control device 3 and CPU 2 at a cycle of, for example, several seconds.
can be switched alternately.

Therefore, while the dual-purpose numeric display A1 is switched to the power supply control device 3 side, the details of the power supply abnormality are displayed on the numeric display A1, and the display functions of the other numeric displays A2 to A4 are stopped.

While the numeric display A1 is switched to the CPUZ side,
Since the other numeric displays A2 to A4 also switch to the CPU side,
A normal display regarding the CPU will occur.

In other words, in FIG. 2, the details of the power supply abnormality of the input/output device are displayed only while the buzzer cut switch 5 is pressed, whereas in this embodiment, the details of the power supply error and the content of the power supply error from the CPU are automatically displayed every few seconds. Normal display is performed alternately.

Although this is a type of blinking display, the blinking period may be long enough to make the displayed content legible.

When the buzzer cut switch 5 is pressed, the buzzer 4 stops sounding, and the input/output device in which the abnormality has occurred is disconnected from the system.
The blinking display stops and only the normal display regarding the DPU 2 is performed.

In the case of a power supply abnormality that leads to system down, the power to the entire system is cut off in exactly the same manner as in FIG. 2, and the contents of the abnormality are displayed on the numeric display A1 which also serves as a dual-purpose display.

In addition, if there are many display contents of power supply abnormalities, the numerical display which serves both as a CPU display and a power supply abnormality display may have two or more digits.

As is clear from the above embodiments, by using the conventional numeric display for the CPU as a power supply abnormality display and also as a buzzer and buzzer cut switch, it is possible to reduce the power supply without increasing the cost of the device. Can be equipped with an error display function.

In particular, even though the numeric display is used as a numeric display, the power control unit cannot distinguish between a power failure that would lead to a system down and a power failure that does not lead to a system down. Since the power supply abnormality details and the CPU can be displayed on the numeric display by operating the buzzer cut switch or by flashing, the normal display regarding the CPU will not be disturbed.

Moreover, when a power supply abnormality is displayed, the display functions of other numeric displays are stopped, so there is no fear that the display will be confused with the CPU display.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a conventional console panel, and FIGS. 2 and 3 are block diagrams showing embodiments of a power failure display system according to the present invention. In the figure, A1 to A4 are numerical displays, 1 and γ are console panels, 2 is a CPU, 3 is a power control device, 4 is a buzzer, 5 is a buzzer cut switch, 6 is an indicator lamp, and 8 is a multiplexer.

Claims (1)

[Claims] I In a computer system equipped with a multi-digit numeric display for displaying data, addresses, etc. related to the CPU, a buzzer, and a buzzer cut switch, the numeric display that is necessary for displaying the details of a power failure on the multi-digit numeric display In addition to wiring the numeric display so that it can also be used to display power failure details, the system monitors the power status of the entire system and distinguishes between serious power failures that could lead to system downtime and relatively minor power failures. and a switching means for switching the dual-purpose numeric display to the power supply control device side and the CPU side, and the switching means switches the dual-purpose numeric display to the power supply control device side. Wiring is done so that the display function of the other numeric display is stopped when the switching occurs, and when a relatively minor power abnormality is detected in the power supply control device, the content is displayed on the dual-purpose numeric display. The computer is configured so that when a serious power abnormality that causes a system shutdown is detected, the power to the entire system is cut off, the details of the abnormality are displayed on a dual-purpose numerical display, and a buzzer sounds. System power failure display method.