JPS63136226A - Console panel for information processor - Google Patents

Abstract

PURPOSE:To completely cope with a switch fault through an emergency measure by invalidating the control output of an optional main control switch and displaying the diagnosing result of operation of the main control switch. CONSTITUTION:When a main control switch 11a or 11b has a fault, a changeover switch 13 is turned on and address switches 16a and 16b are used for the selection of an operation to invalidate the control output of either one of both switches 11a and 11b. Thus an auxiliary switch 12 is used in place of the switch 11a or 11b. Then a gate 214 or 216 is opened while the switch 13 is kept turned on and the switch 11a or 11b is operated. Thus the control output of the operated switch 11a or 11b is sent to a display means 14 via the gate 214 or the gate 216 and a gate 210. Then an LED 141 is turned on.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an operation panel for an information processing device used to control various operations of the information processing device.

[Conventional technology]

An information processing device is provided with an operation panel equipped with a large number of switches for performing various controls necessary for system operation depending on the system configuration.

The operator manages the system by operating switches on the operation panel while monitoring the operation of the information processing device.

[Problem that the invention seeks to solve]

Here, if one of the switches on the operation panel breaks down while the information processing device is operating, that switch may not work and appropriate control may not be possible.

In such cases, a switch failure can only be recognized after the switch is operated, and even if the failure is discovered by operating the switch while the information processing device is operating, there is no way to perform any operations using the switch at that time. certain operations are not possible.

Therefore, it is necessary to ensure maintenance and inspection, and to immediately take measures such as repairing the switch in the event of an emergency.

However, when an information processing device does not respond appropriately to a switch operation, it takes a certain amount of time to determine whether the switch itself is faulty or the logic part of the switch is faulty. A failure of a switch for operating a so-called safety protection system for disconnection is a serious problem as it threatens the safety of the information processing device. It is also difficult to completely prevent malfunctions of these switches through periodic inspections alone.

The present invention has been made in view of the above points, and it is an object of the present invention to provide an operation panel for an information processing device that can completely deal with such switch failures and that allows emergency measures to be taken.

[Means for solving problems]

The operation panel of the information processing device of the present invention includes a plurality of main operation switches that are used to control the information processing device during normal times, and when one of these main operation switches malfunctions, the same control is performed in place of the failed main operation switch. The auxiliary switch used,
a changeover switch that switches the connection between these switches and the information processing device so as to disable the control output of one of the plurality of main operation switches and enable the control output of the auxiliary switch, and the control The present invention is characterized in that it has a display means that accepts the control output of the main operation switch whose output has been disabled and displays a diagnosis result of its operation.

[Effect]

The above operation panel uses a number of main operation switches to control information processing equipment, and if one of the main operation switches is malfunctioning, the connection is immediately switched to the auxiliary switch using the changeover switch. and control can continue.

Furthermore, after disabling the control output of any main operation switch using the changeover switch, if you control that main operation switch, the diagnostic results of that operation will be displayed on the display means, so you can use it at any time even when the information processing device is operating. , the operation of any main operation switch can be checked.

〔Example〕

FIG. 1 is a wiring diagram showing an embodiment of the operation panel of the information processing apparatus of the present invention.

This operation panel is composed of a panel section 1 and a control section 2. The operation panel section 1 includes switches 11a and llb.
, 12.16a, 16b, and 13, and display means 14
is installed. These switches are configured to send predetermined control outputs to the information processing device 3 through the operation panel control section 2.

The switches include main operation switches lla, ], 1b, an auxiliary switch 12, a selector switch 13, and address switches 16a and 16b, each of which has one terminal grounded and the other terminal connected to the operation panel control section. It consists of an on-off switch connected to 2. The main operation switches lla and llb are
The auxiliary switch 12 is a switch that is normally used to operate the information processing device 3, and is used as a substitute when any of these switches fails. The changeover switch 13 is a switch for switching the connection from the main operation switches lla and llb to the auxiliary switch 12, and the address switches 16a and 16b are for selecting the main operation switch that will be switched to the auxiliary switch 12 in case of a failure. It is a switch. Further, the display means 14 includes a light emitting diode 141 and a series resistor 142 for controlling its current.

The operation panel control section 2 includes the main operation switch 11a111b.
, the auxiliary switch 12, the changeover switch 13, the inverters 21 to 26 that respectively receive the outputs of the address switches 16a and 16b, and the three logic circuits 211 to 213.
, an encoder 29 with an enable terminal, one NOR gate 210, and six AND gates 214 to 219.
, two OR gates 220 and 221, and this control section 2
It is composed of inverters 27 and 28 which finally send out the processed control output to the information processing device 3.

The inverters 21 to 26 each have a main operation switch ll.
This circuit functions as an interface by inverting and amplifying the outputs of a, llb, auxiliary switch 12, selector switch 13, and address switches 16a and 16b. encoder 2
9 receives the control output of the changeover switch 13 through the inverter 26 and the logic circuit 211 to its control terminal;
This is a circuit that inverts the signal input to the data input terminal and outputs it.

In this circuit, when the control terminal becomes low level,
The high level signal input to the input terminal is inverted to low level and output. In this example, the input terminals include two address switches 16a, 16b, and inverters 24.
25. Note that this circuit can be connected to more address switches, for which extra output terminals are shown, but these are not used in this embodiment.

AND gates 215 and 217 respectively have main operation switches 1la111. This circuit receives the output of b and the output of encoder 29 via inverter 21 or inverter 22, and outputs the logical product thereof to OR gates 220 and 221.

Further, the AND gates 214 and 216 respectively connect the outputs of the main operation switches lla and llb and the output of the encoder 29 to the inverters 21 and 22 or the logic circuit 212.
．． 213, and the logical product is sent to Noah gate 2.
This is a circuit that outputs to 10.

The NOR gate 210 is a circuit that receives the outputs of the AND gates 214 and 216, inverts the logical sum thereof, and outputs the inverted result to the display means 14.

AND gates 218 and 219 connect the output of the auxiliary switch 12 and the output of the encoder 29 to impark 2, respectively.
3 through the logic circuit 212 or 213, and outputs the logical product to the OR gate 220 or 221.

OR game 1-220.221 is a circuit that receives the outputs of AND gates 215 and 218 or AND gates 217 and 219, respectively, and outputs the logical sum thereof to information processing device 3 via inverter 27 or 28.

The operation panel having the above configuration operates as follows.

First, each switch lla, llb, 12.13.16a
, 16b, when in the off state, the terminal connected to the operation panel control unit 2 becomes high level, and when in the on state, the terminal becomes low level.

Further, when the changeover switch 13 is in the OFF state, all outputs of the encoder 29 are at a high level, and when the changeover switch 13 is in the ON state, the outputs of the address switches 16a and 16b are taken out from the encoder 29. That is,
For example, if the address switch 16a is turned on,
The output terminal of the encoder 29 corresponding to this becomes low level.

As a result, when the selector switch 13 is off, AND gates 215 and 217 are opened, and AND gates 214 .
216.218.219 are closed. Further, when the selector switch 13 is on, for example, the address switch 16a
is on, AND gate 215 is closed and, conversely, AND gates 214 and 218 are opened.

There is no change in the behavior of other AND gates. Further, if the selector switch 13 is on and the address switch 16b is on, the AND gate 217 is closed, and conversely, the AND gates 216 and 219 are opened. In this case as well, there is no change in the operation of the other AND gates.

Now, first of all, if the changeover switch 13 is turned off in normal times, the control outputs of the main operation switches lla and llb will be the outputs of the inverter 21.22 and the AND gate 215.2, respectively.
17, Orgate 220.221 and Inpark 27
．． It is effectively output to the information processing device 3 through 28. At this time, since the AND gates 218 and 219 are closed, the output of the auxiliary switch 12 is cut off and becomes invalid. Furthermore, since the AND gates 214 and 216 are closed, one terminal 143 of the display means 14 is always at a high level. A power source (not shown) is connected to the other terminal 144 of the display means 14.
In this state, no current flows to light the light emitting diode 141. Therefore, the display means 14 does not operate.

Next, consider a case where, for example, the main operation switch lla has failed or is suspected of having failed.

At this time, the address switch 16a is turned on to select switching of the main operation switch lla. and,
When the selector switch 13 is turned on, the address switch 1
．． The output of 6a closes AND gate 215 and opens AND gates 214 and 218.

As a result, the control output of the main operation switch lla is cut off by the AND gate 215 and becomes invalid, and instead, the control output of the auxiliary switch 12 is transmitted to the inverter 23, the AND gate 218, the OR gate 220, and the inverter 27.
The information is effectively sent to the information processing device 3 through

When the main operation switch llb fails, the address switch 16b is turned on and the control output of the auxiliary switch 12 is sent to the information processing device 3 through the AND gate 219, the OR gate 221, and the inverter 28.

In this way, the main operating switch lla or llb
When the main operation switch malfunctions or is suspected of malfunction, the changeover switch 13 is turned on and the address switches 16a, 16b are used to select to disable the control output of either main operation switch, thereby immediately switching the auxiliary switch 12 can be used as a substitute for the main operation switch lla or llb.

Furthermore, when the selector switch 13 is turned on, the AND gate 214 or 216 is open, so when the main operation switch lla or 11b is operated, its control output is displayed through the AND gate 214 or 216 and the NOR gate 210. It is fed into the means 14. That is, when the main operation switch lla or llb is on, the output of the NOR gate 210 is at a low level,
Current flows into the display means 14 from a power supply (not shown) through a terminal 144, and the light emitting diode 141 lights up.

When the main operation switch lla or llb is in full position,
The output of the NOR gate 210 returns to high level, and the light emitting diode 141 turns off.

On the other hand, if the main operation switch lla or 11b is out of order, the display means 14 will not blink even if these main operation switches are turned on or off.

Therefore, the operator can diagnose the operation of the main operation switch lla or llb by looking at the display means 14. If any of the main operation switches 11 is found to be faulty, in this state using this auxiliary switch 12 as a substitute,
It is also possible to replace the main operation switch. Of course, the operation of the information processing device can continue without any problems.

When there are three or more main operation switches, it is sufficient to add AND gates 214 to 219, etc., and corresponding address switches 16a and 16b. As a result, it is possible to cope with duplication of a large number of main operation switches using one auxiliary switch.

[Modified example]

The operation panel of the information processing apparatus of the present invention is not limited to the above embodiments.

The number of auxiliary switches is not necessarily one, and one auxiliary switch may be provided for each of an appropriate number of main operation switches.

In this case, two or more sets of circuits as shown in FIG. 11 will be provided on the operation panel.

〔Effect of the invention〕

According to the operation panel of the information processing device of the present invention explained above,
Failure diagnosis of any main operation switch provided therein can be easily performed at any time.

In addition, in the event of a failure, emergency measures can be taken by immediately switching to the auxiliary switch, thereby significantly improving the reliability of the operation panel.

Furthermore, since a large number of main operation switches can be duplicated by using a small number of auxiliary switches, it is possible to prevent the operation panel from increasing in size.

[Brief explanation of the drawing]

FIG. 1 is a wiring diagram showing an embodiment of the operation panel of the information processing apparatus of the present invention. 1.2... Operation panel (panel section, control section), 3.
...Information processing device, 11a, llb...Main operation switch, 12...
... Auxiliary switch, 13 ... Changeover switch, 14 ... Display means. Applicant: NEC Corporation Representative

Claims (1)

[Claims] A plurality of main operation switches used to control the information processing device during normal times, an auxiliary switch used for the same control in place of the failed main operation switch when one of these main operation switches fails, and a plurality of auxiliary switches used for the same control in place of the failed main operation switch; a changeover switch that switches the connection between these switches and the information processing device so as to disable the control output of one of the operation switches and enable the control output of the auxiliary switch; and a changeover switch that disables the control output. 1. A control panel for an information processing apparatus, comprising display means for receiving a control output of a main operation switch and displaying a diagnosis result of its operation.