JPS6340923A - Power source control system in data processing system - Google Patents

Abstract

PURPOSE:To disconnect a power source of a data processor even in case an abnormality is generated in a control program and it has become a stall state, by sending out a power OFF signal, and disconnecting the power source of the data processor, when a timer for monitoring the stall state of the control program has detected an overflow. CONSTITUTION:When an abnormality is generated in a control program and it has become a stall, a reset signal comes not to be inputted to a monitoring timer 20, therefore, the timer 20 generates a monitoring timer over-flow signal. Its signal is informed to a panel control part 16 through a signal line 104. When a power source OFF switch of a panel 19 is depressed under such a state, a panel control part 16 sends out a power OFF signal to a power source control part 13 through signal line 103. The control part 13 disconnects a power source of a data processor 2 through an interface 102.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a power control system in a data processing system such as a data processing device and a service processor that controls the operation of the data processing device.

(Prior Art) Conventionally, in a power control system for this type of data processing system, when an operator presses the power off switch from the panel, an interrupt is sent to the control program of the service processor (hereinafter referred to as the control program), and control is started. The program was executing a power off command to the power control unit. As a result of the above, the data processing device was powered off.

(Problems to be Solved by the Invention) However, in the conventional power supply control method described above, there is a problem in that if an abnormality occurs in the control program and the program stalls, the power to the data processing device cannot be turned off. Therefore, the power supply was cut off using a breaker or the like, but this had the disadvantage that it was difficult for ordinary operators to understand the operation.

SUMMARY OF THE INVENTION An object of the present invention is to provide a power control method for a data processing system that can turn off the power of a data processing apparatus even if an abnormality occurs in a control program and the program stalls.

(Means for Solving the Problems) In order to achieve the above object, a power control method in a data processing system according to the present invention includes a control program that controls a service processor that controls the operation of a data processing device, which includes a panel power off switch. In a power control method for a data processing system in which power is cut off to a data processing device by interrupting the operation and executing a power off command, a timer is provided to monitor whether the control program is stalled, and the timer overflows. When detecting this, the panel control unit sends a power off signal without notifying the control program of the operation of the power off switch from the panel, and the power control unit powers off the data processing device in response to the power off signal. The configuration is missing.

(Example) Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing a set of embodiments of a power supply control method in a data processing system according to the present invention. This embodiment is comprised of a data processing device 2 and a service processor 2 that controls and monitors the operation of the data processing device 2 via a diagnostic interface 101 and a power supply control interface 102. The service processor 2 includes a processing section 10 that executes a control program, a storage section 11 that stores the control program, a diagnostic control section 12 that is connected to a diagnostic interface 101, and a diagnostic control section 2 that is connected to the control program. a monitoring timer 20 that monitors the stall of the
Power supply control unit 1 to which power supply control interface 102 is connected
3, a panel 19 consisting of switches and lamps for power on/off, etc., and a panel control unit 1 that controls the panel 19
6, and the monitoring timer overflow line 1 that notifies the panel control unit 16 when the monitoring timer 20 overflows.
04, a power-off signal line for notifying the power-off directly from the monitoring timer overflow temporary panel 19 to the power supply control unit 13, and the like.

Normally, when the control program is operating normally, the monitoring timer 200 is reset at regular intervals, so the monitoring timer 200 does not overflow. At this time, when the power off switch on the panel 19 is pressed, the information is transmitted to the panel control section 16, and the control program is interrupted. When the control program detects this interrupt, it starts a power off routine and turns off the power control unit 1.
Execute the power off command for 3. Common bus 100
Upon receiving a power off command via the power control interface 102, the power control unit 13 turns off the power to the data processing device 2 via the power control interface 102.

When an abnormality occurs in the control program and the control program becomes stalled, the reset signal is no longer input to the above-mentioned supervisory timer 20, so the timer 20 generates a supervisory timer overflow signal. Monitoring timer overflow signal is signal line 1
The panel control unit 16 is notified via 04. Under such a state, when the power off switch on the panel 19 is pressed, the panel control section 16 sends a power off signal to the power supply control section 13 via the signal line 103. The power control unit 13 that receives this power off signal turns off the power to the data processing device 2 via the power control interface 102.

(Effects of the Invention) As described above, the present invention provides an over 70- signal line for notifying the panel control unit of a monitoring timer and overflow, and further enables the temporary power-off of the over 70 panel without going through a control program. Providing a power-off signal line for notifying the control unit has the effect that even if the control program stalls, the data processing device can be powered off.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one implementation of a power control method in a data processing system according to the present invention. 1. - Service processor 2...Data processing device 10.φ-processing section 11...Storage section 12...Diagnosis control section 13...L source control, J section] 4...Input Output control unit 15...External memory 1 control unit 16...Panel control unit 17...Display unit/control]8...External storage 19---Panel 20...Monitoring timer 10]・Fist/diagnosis interface 102...'iii, whale control interface 103/
・・Power off signal, fitting

Claims (1)

[Claims] A data processing system that cuts off the power of the data processing device by interrupting the control program that controls the service processor that controls the operation of the data processing device by operating the panel power off switch to execute a power off command. In the power supply control method, a timer is provided to monitor the stall state of the control program, and when the timer detects an overflow, the panel control unit turns off the power without notifying the control program of the operation of the power off switch from the panel. 1. A power control method for a data processing system, characterized in that the power control unit is configured to send out a power off signal, and turn off the power of the data processing device in response to the power off signal.