JPS58146940A - Displaying method of plural units using maintenance board in common - Google Patents

Abstract

PURPOSE:To automate display in defective status, by invalidating the unit selection of a maintenance board and selecting a unit in which the defective status is generated after detecting the defect when only the display to the maintenance board is executed. CONSTITUTION:When an operation permission switch 35 is turned to the unpermitted side, an output 305 selects an output 302 from a encoding circuit 32 out of two inputs of a switching circuit 33. If an error is generated in the 1st unit 10 side under said condition, the encoding circuit 32 outputs a signal 302 indicating the 1st unit 10 and the switching circuit 33 also outputs a signal 303 indicating the 1st unit 10, so that the outputs 301, 300 of the selecting circuits 31, 30 indicate the status of the 1st unit 10 side respectively. When an error is generated in the 2nd unit 20 side, the same operation is applied.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display system for a plurality of units that share a maintenance panel in, for example, a data processing device.

Conventionally, in the case of a configuration in which one maintenance panel is shared among multiple units, the selected unit is displayed, but the unselected units are not displayed or are displayed on a panel other than the maintenance panel. This caused inconvenience in operation.

The purpose of the present invention is to prevent unit selection on the maintenance panel when an abnormal state called an error or check error occurs when no operations are performed from the maintenance panel and only displays are displayed on the maintenance panel. The object of the present invention is to provide a display system that is configured to select and display a unit in which the abnormal state has occurred, and can automatically display the abnormal state.

According to the present invention, a plurality of units share one maintenance panel, and the maintenance panel has a unit selection switch for selecting the unit, and only displays whether instructions to the unit are allowed from the maintenance panel. an operation permission switch for setting, a switch for setting various states, and a display lamp for displaying the error state of the unit and the output of a selection circuit for selecting various states; Select the selection circuit with a selection switch,
A shared maintenance panel is characterized in that in a state where instruction operations are not permitted, by selecting the unit in which the error state has occurred, it is possible to monitor the occurrence of errors in a plurality of units and to display various states at the time of error occurrence. A display method for multiple units is obtained.

Next, the present invention will be explained in detail with reference to the drawings.
The figure is a block diagram showing an embodiment of the present invention. In the figure, there are two units to be maintained, 10 is the first unit, and a signal line 100 for display is one of each of the selection circuits 30 and 31. It is also provided as one input of the encoding circuit 32. 20 is a second unit whose signal line 200 for display is supplied as one input to each of the selection circuits 30 and 31 and as one input to the encoding circuit 32. The maintenance panel 39 includes a unit selection switch 34 for selecting the unit, an operation permission switch 35 for enabling operation of the first unit or the second unit from the maintenance panel, and a plurality of switches 36 for setting various states. and a first display lamp 37 that displays errors, a second display lamp 38 that displays various statuses, and a third display lamp 40 that displays the selected unit. 304 is supplied as one input of the switching circuit 33, the other input of the switching circuit 33 is supplied with the output 302 of the encoding circuit 32, and the output 305 of the operation permission switch 35 is supplied as the switching input of the switching circuit 33. has been done. The output 30311 of the switching circuit 33 is supplied as a selection input to the selection circuits 30 and 31 and at the same time the third display lamp 40
is supplied to. The output 306 of the switch 36 is supplied to the first unit 10 and the second unit 20, the output 300 of the selection circuit 30 is supplied to the second indicator lamp 38, and the output 301 of the selection circuit 31 is supplied to the indicator lamp @1. It is supplied to 37.

Next, the operation will be explained step by step. First, when the operation permission switch 35 is set to the operation permission side, the output 305 selects the output 304 of the unit selection switch 34 from among the two inputs of the switching circuit 33, and the first indicator lamp 37 and a second indicator lamp 37 for indicating various statuses.
Display 27738 displays the error and status of the unit selected by the unit selection switch. Next, when the operation permission switch 35 is set to the non-permission side, the output 30
5 is the coding circuit 3 among the two inputs of the switching circuit 33.
2 output 302 is selected. In this state, if an error occurs on the first unit 10 side, the coding circuit 3
2 outputs a signal indicating the first unit IO, and the output 303 of the switching circuit 33 outputs a signal indicating the first unit 10. Therefore, the output 301 of the selection circuit 31 and the output 300 of the selection circuit 30 are each first unit 1
Displays the status on the 0 side. The operation is similar when the work 2- occurs in the second unit 2o@.

In this way, regardless of the state of the unit selection switch 34, a message indicating that the unit in which the error has occurred is selected is displayed.

As explained above, the present invention has the advantage that when the occurrence of an abnormal state is detected, the unit in which the abnormal state has occurred can be automatically displayed by switching the unit selection.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. 10...XO=nit, 20...2nd (DL=t, 1.ao...selection circuit, 31
... Selection circuit, 32 ... Encoding circuit, 33 ... Switching circuit, 34 ... Unit selection switch, 35 ... Operation permission switch,
36...Each switch, 37...1st
Display (work 2-display) lamp, 38...2nd display (various status display) 2 lamp, 39...maintenance panel, 40...M3 display ( unit selection) lamp.

Claims (1)

[Claims] a selection switch, an operation permission switch for setting whether instructions to the unit from the maintenance panel are permitted or only display, a switch for setting various states, and a switch for setting the error state and various states of the unit. A display rung is provided to display the output of the selection circuit to be selected, and in a state in which instruction operation is permitted, the unit selection switch selects the selection circuit, and in a state in which instruction operation is not permitted, the unit in which the error state has occurred is selected. 2. A display method for a plurality of units sharing a maintenance panel, which is characterized by monitoring the occurrence of errors in a plurality of units and displaying various states when errors occur.