JPS63268426A - Power source control system - Google Patents

Abstract

PURPOSE:To prevent a wasteful system down by determining and registering in advance information indicating necessity or nonnecessity of breaking a power source of a power source unit, and reading the information at the time of generating an alarm signal to control the interruption of the power source. CONSTITUTION:When a plurality of unit power source controllers 31-3n are respectively connected to power source units 11-1n' for supplying powers to load units 21-2n, a system power source controller 11 is further connected to apply a power source ON/OFF command of the unit, a registration unit 12 is provided in the controller 11. The unit 12 stores in advance information of whether the power source of the unit should be turned ON/OFF at the time of generating an alarm signal. When the signal is actually generated, the stored information is read by a control unit 11C, the command of turning ON/OFF of the power source is applied to the controllers 31-3n according to the information.

Description

[Detailed Description of the Invention] [Summary] A system power supply control device that performs power on/off and power supply alarm control using a unit power supply control device, and centrally controls each unit TL and 8 control devices [Industrial Application Field] This book The present invention relates to a control method for a power source that supplies power to a load device.

A plurality of power supply units are provided to supply power to various devices constituting the information processing system, and a unit power supply control device performs power on/off control and power supply alarm control.

The system power supply control device controls the plurality of unit power supply control devices as a host device.

In order to process information efficiently and smoothly, it is necessary to minimize interruptions in the operation of the information processing system.

[Conventional technology]

A conventional power supply control system will be explained with reference to FIG.

Power supply unit 11, 1°l '-' + 1z+L
From 'z'-1n+1゛n-・, the central processing unit (CPIJ) 21. Main storage unit (MSU) 2
z8 display device 23. Power is supplied to the printer 2n and the like.

Unit power supply control device 3. ~31 is each load device 2,~
2n, and the power supply unit 1□1',
...1! , 1°, -1n, l'n '-'
Power on.

Performs disconnection control and power alarm control.

A system power control device 4 is provided for the unit power control devices 3I to 3n to instruct power on/off and to control power alarms.

When a failure occurs in the load device 2i (i·1 to n), an alarm signal is issued from the load device 21. This alarm signal is transmitted to the unit power supply control device 3i (i.1~
n) The alarm signal input to 8 is input to control section 9.

Upon receiving this alarm signal, the control section 9 sends a power cut signal (system off signal) to all the unit power control bags w3I to 3n. This power cut signal is sent to the unit power supply control device 3 via the input/output boats 5I to 5n.
．． ~3n, all power supply units 11+1'l-...1□.

1°2-... 1n, 1"n-.- enters a power-off state (system-off state a) upon receiving a command from the unit power supply control devices 3, to 3n.

Note that 1O is a host device, and when the command is sent to the power supply control device 4 of the host device 1, the control section 9 sends power on/off commands to the unit power supply control devices 3I to 37. , 1”1 ・・・-・1□, 1゛2---
in, 1°n-... is the power on/off state.

(Problems to be Solved by the Invention) As mentioned above, the conventional power supply control method uses the load device 2I,
2t-... If even one of 27 fails, all power supply units 711+lt,'-...1z+I'z
The power of ...tn, t'n- is turned off, and the system operation stops (system down).

Therefore, even if a failure occurs in a load device that does not require a special or urgent need for system operation, the system will go down and the system will need to be restarted each time, which is wasteful in terms of system operation and reduces system operation efficiency. It was lowering it.

The present invention has been made in view of this point, and an object of the present invention is to provide a power supply control method that can prevent unnecessary system down.

[Means for solving problems]

FIG. 1 is a diagram explaining the principle of the present invention.

Parts equivalent to those in Fig. 3 are given the same reference numerals. In FIG. 1, alarm signals from the unit power supply control devices 3I, 3□-3n are input to the control section 11c of the system power supply control device 11. In the registration unit 12, the unit power supply control device 313t - 3□ (or the load device 21.2□
...2n), information regarding whether system off is necessary or unnecessary when an alarm signal is generated is stored.

[Operation] When an alarm signal is input from the unit power control device 3□3□-3□ to the system power control device B 11, the control section 11c refers to the registration section 12 and determines the unit power control device that requires system off. In the case of an alarm signal from the control unit 1
1c is the unit power control device 13. Since a power cut command (system off command) is sent to ~3n,
All power.

Power supply 1□1'+ --1z, 1'--・-In, 1
°n - The song is powered off.

Further, when an alarm signal from the unit power supply control device registered in the registration section 12 as not requiring system off is input to the system power supply control device 11, the control section lie:
Sends a signal that does not require system off.

Therefore, in this case, the operating efficiency of the system is improved without suffering from system failure.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 2 is a configuration diagram of an embodiment of the present invention, and parts equivalent to those in FIG. 3 are given the same reference numerals.

In FIG. 2, 13 is a storage section provided as a registration section and used to store information on whether power-off control is required or not;
14 is an OR circuit that receives alarm signals sent from the unit power supply control devices 3I to 3n.

15 is an upper control unit, 416. 16J is an AND circuit, and one input terminal is connected to the unit power supply control device 3.
, 3t and -3n are input, and power control information read from the storage unit 13 is input to the other input terminal.

17 is an OR circuit which receives the output of AND circuit 16+=16n. 18 is an inverter, and OR circuit 1
Receives the output of 7. 191.19□-...19n are AND circuits provided corresponding to the unit power supply control devices 38, 3□-...3n, and one input terminal receives an output signal from the host control unit 15. The output signal of the inverter 18 is input to the other input terminal. 20
is a decoder, and unit power supply control devices 3I, 3□
・In response to the alarm signal sent from -3n, storage unit 1
3 is determined.

That is, the address where information regarding the unit power supply control device from which the alarm signal has been output is stored is determined, and the address signal is output to the storage section 13.

This information stored in the storage section 13 is stored in the unit power supply control device 3 as described above. ...3n indicates whether or not the system needs to be turned off when an alarm signal occurs.As shown in FIG. 2, each storage area 131 to 13n has a unit. Power control device 3. Regarding 3n, "1" or "0" indicates whether or not the system needs to be turned off when an alarm signal is generated. When defeated, it means the system must be turned off.

When operating the system, a system on signal is input from the host device 10 to the host controller 15, so the host controller 15 controls all the unit power supply control devices 3. 3n, giving a power-on command is the same as in the conventional system.

Each load device 2. Power unit day, for ~2n.

1'i ---1z+ 1'! ---In, l
Power is supplied from 'n--- and the system becomes operational.

In such a state, the load device 2. 2n, an alarm signal is sent to the system power supply control device 11 from the unit power supply control device controlling the load device in which the fault has occurred. For example, when a failure occurs in the load device 2□, an alarm signal is sent from the unit power supply control device 3□. This alarm signal is sent to the OR circuit 14 and the control section 11c.

On the other hand, the alarm signal input to the control section 11c is sent to the AND circuit 16! is input to. When an alarm signal is input to the decoder 20, it is decoded and the system power-off required/unnecessary information (system power-off required/unnecessary information) stored in the storage area 13t of the storage unit 13 is read out. It is input to the circuit 16□. The storage area 132 has “1
” is stored, indicating that it is necessary to turn off the system power, and the storage unit 13 outputs a signal “1”. Note that if the system power supply does not need to be cut off, the storage unit 13 outputs the signal “0”.
" is output.

Since the two input signals to the AND circuit 16□ are both "1" (that is, the alarm signals from the unit power supply control devices 3. to 3n are output as a level "1" signal,
Unit power supply control device 3. When no alarm signal is output from unit power supply control fl devices 31 to 3n, a signal of level "0" is output from these unit power supply control fl devices 31 to 3n. ) The output of the AND circuit 1h becomes "1", and in other cases the output of the AND circuit 16□ becomes rOJ.

The output "1" of the AND circuit 16□ is input to the inverter 18 via the OR circuit 17, where the level is inverted and becomes a signal of level "0". ~19n
is input.

Since the system on signal is output from the host device IO during the system operation period, the host control unit 15 receives this system on signal and outputs a signal "1".

Therefore, if the signal rOJ is output from the inverter 18, the AND circuit 19. ~19! Since the signal “0” is output from the unit power supply control device 31, this signal rOJ
~3n, all power supply units 1□ 1°1
・-・1t+ l'z ・・-' I n, l'n
'- indicates unit power supply control device 3. -3n command is received, and the power is turned off.

In this manner, when an alarm signal is generated in the storage unit 13, the units registered as requiring system power-off are placed in a disconnected state.

When an alarm signal is generated, even if an alarm signal is sent from a unit power control device registered in the storage unit 13 as not requiring system power-off, the system power is not turned off. This point will be explained below.

For example, unit power supply control device 3. When an alarm signal is sent from AND circuit 16. It is input to one terminal of the AND circuit 16., and is also input to the decoder 20, and the information regarding whether or not the system power supply is required to be turned off regarding the unit power supply control device 33 is read out from the storage section 13, and the information is input to the AND circuit 16. is input to the other terminal of

In this case, the signal read out from the storage unit 13 is "O" (
16. Since there is no need to turn off the system power, the AND circuit 16. The output of is "0", so when it is input to the inverter 18 via the OR circuit 17, the output of the inverter 18 becomes "1".

The output signal "1" of this inverter 18 is applied to all the AND circuits 19. ~19n is input to one terminal. As mentioned above, while the system is in operation, the upper control unit 15 sends the signal "
1" is output, all AND circuits 19+
The output of "19n" is "1".

AND circuit 19+ for unit power supply control device 31 to 3n
Even if the signal “1” is input from ~19n, this signal “l”
” means power on, so power supply unit L+ 11
．． ---1! , l't' --- In, 1°
n −・− is not powered off, and these power units 1+ l't −・−・1z+ l'z−Ino l
Power continues to be supplied from 'n-.

However, the unit power supply control device 3 that sent out the alarm signal. power supply unit controlled by) 13°1°,
The power of - is cut off based on the control of this unit power supply control device 33 itself.

Therefore, this unit power supply control device 3. The system continues to operate even if an alarm signal is sent from the power supply unit 1 controlled by the unit power supply control device 33.
By using the load devices 23, 2□, 24, -2n which do not require a power supply of ++1'3'-, it is possible to perform the required information processing.

In this way, when there is no problem in system operation, even if an alarm signal is sent from the unit power supply control device, the number of times the operation of the entire system is stopped is reduced, and information processing is efficiently performed.

Even if an alarm signal is sent from the unit power supply control device in this way, there is no need to stop the operation of the entire system when a failure occurs in the printer or magnetic tape device, and the power supply to the printer or magnetic tape device does not need to be stopped. For a unit power supply control device that controls a power supply unit that supplies power, "0" may be assigned to the storage section described above.

In addition, when an alarm signal is sent from the unit power supply control device, the case where it is necessary to stop the operation of the entire system is when a failure occurs in the central processing unit or DASD (direct storage device). Ya DA
For SD, "1" may be assigned to the storage section.

In the above-described embodiment, the name of the unit power supply control device is registered in the storage unit 13, but the present invention is not limited to this, and the name of the unit power supply control device is registered in the storage unit 13.
Load device names such as DASD and power supply unit names (codes that identify each power supply unit, etc.) are registered in the storage unit 13, and for each registered load device and power supply unit,
rlJ, r depending on whether system power-off control is necessary or not.
By assigning OJ, the power supply unit 11+1'l...-1z+ is generated using the alarm signal output from the unit power supply device in the same manner as in the above embodiment.
Power cut-off control may be performed for l'g-.1n, 1°n, . . . .

In this case, the circuit configuration may be the same as that shown in FIG. In the above-described embodiment, the case where the load device has failed has been described, but the present invention can be similarly applied even when the power supply unit has failed. The alarm signal may be generated from the faulty load device or the power supply unit itself (or may be generated from the unit power supply control device).

〔Effect of the invention〕

As described above, the power supply control method according to the present invention can prevent unnecessary system down due to the occurrence of a failure in a load device or a power supply unit, thereby improving the operating efficiency of the system.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the principle of the present invention, FIG. 2 is a configuration diagram of an embodiment of the present invention, and FIG. 3 is an explanatory diagram of a conventional power supply control system. L, 1'+ -= It, l't =--1n
, 1°n-: power supply unit, 2. ~2n: Load device -3n: Unit power supply control device, 12: Registration section, 1
3: Memory section. 161 to 16n: AND circuit, 20: decoder.

Claims (1)

[Claims] A unit power supply (1_1, 1'_1, . . ., which supplies power to the load devices (2_1, 2_2, .
・1_2, 1'_2,...1_n, 1'_n...
A plurality of unit power supply control devices (3_1, 3_2, etc.) that perform power-on, power-off control, and power alarm control for the
...3_n) and receiving the alarm signal,
The unit power supply control device (3_1, 3_2,...
- In a power supply control method for controlling the power supply of a system including a system power supply control device (11) that issues power on/off commands to the power supply unit (1_1), when the alarm signal is generated, the power supply unit (1_1)
,1'_1,...1_2,1'_1...1
A registration unit (12) is provided to store information indicating whether or not it is necessary to turn off the power of the unit power control device (3_1, 3_2, ...).
- When an alarm signal from 3_n) is input to the system power control device (11), the information stored in the registration unit (12) is read, and the system power control is performed based on the read information. From the device (11) to the unit power supply control device (3_1, 3_2,...3_n)
A power supply control device characterized in that the power supply control device transmits a signal indicating whether or not the power supply is to be cut off.