JPH03219319A - Power supply control system - Google Patents

Abstract

PURPOSE:To prevent unreported fault information from being initialized by reporting fault information to a service processor, and after completing the report, releasing a power ON command. CONSTITUTION:A power supply 4 transmits detailed information 17 relating to power supply abnormality to a power supply controller 2 at the time of receiving a detailed information request command 16 and the controller 2 reports the detailed information 18 to the service processor 1 at the time of receiving the information 17. Then, the controller 1 transmits an interruption permission command 19 to detect the existence of a state change in other power supplies, and when the state change is generated in any power supply out of others, receives an interruption command 8. Thereafter, said procedure is repeated, and after completing the report of information from all the power supplies generating abnormality to the service processor 1, holding is released. Consequently,t he fault information of each power supply can be always reported to the service processor 1.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a power supply control system, and more particularly to a serial bus interface power supply control system.

Conventional technology In a power supply system composed of a service processor, a power supply control device, and multiple power supplies used in information processing equipment, etc., the power supply system is configured to handle operations such as turning on/off the power, handling abnormalities, etc. between the power supply control device and the multiple power supplies. There is a method to realize power supply control between the two using a serial interface.

In such a serial bus interface power control method, when a power supply control device receives a power-on instruction from a service processor, the power supply control device sends the power-on instruction to multiple power supplies, and each power supply receives the power-on instruction. When received, a stabilized voltage is output after initializing the internal storage unit containing the fault information such as the fault detection latch circuit.

In addition, with this type of serial bus interface power control method, if an abnormality occurs in one of the multiple power supplies,
A serial bus communication procedure has been established in which, when a power supply control unit handles an error, the power supply control unit collects power supply fault information from the power supply where the fault has occurred, and then reports this collected fault information to the service processor. .

In the conventional serial bus interface power control method described above, if the power control device receives a power-on instruction from the service processor immediately before collecting power supply failure information, the power control device issues a power-on instruction to the power supply. send. If you turn on the power in response to this, the fault information will be erased by initialization before it is collected, and therefore the fault information will not be reported to the service processor, making it impossible to handle the error. There is a drawback.

Purpose of the Invention Therefore, the present invention was made to solve the drawbacks of the conventional ones, and its purpose is to provide a power supply control system that can constantly report power failure information to a service processor. The purpose is to provide a method.

Structure of the Invention According to the present invention, there is a service processor that issues power-on instructions, power-off instructions, abnormality processing, etc., a power control device that controls power in response to instructions from the service processor, and a power source that is controlled by the power control device. A power supply control method in a power supply system including a plurality of power supplies, wherein each of the power supplies receives an interrupt permission command from the power supply control device generated in response to the occurrence of a failure in its own device. means for generating an interrupt command; and means for generating failure information in response to a request command from the power supply control device; means for generating an interrupt disabling command while suspending a power-on instruction from the service processor in response to receiving the interrupt command generated from at least one of the power supplies; means for generating the request command in response to the reception of the fault information; and means for reporting the fault information to the service processor in response to the reception of the fault information; A power supply control method is obtained which is characterized in that the power supply is released.

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

In the figure, a service processor 1 is connected to a power supply control device 2 through a control signal line and a parallel data bus, and instructs the power supply system to turn on and off the power, collects failure information at the time of abnormal processing, and so on.

The power supply control device 2 is daisy-chained with multiple power supplies 3 to 6 via a serial bus, and is connected to the service processor 1.
Instructs multiple power supplies to turn on power based on instructions from
Instructs power off, collects fault information from abnormal power supply, etc.

Further, different physical address data is set in advance for each of the power supplies 3 to 6, and the power supply control device 2 includes the physical address data in the command and sends it.
Specific power sources can be controlled.

Next, the communication procedure for power supply control according to the present invention will be explained with reference to the time chart shown in the figure. This shows the communication procedure when a failure occurs in the power supply 4. The power supply control device 2 sends the interrupt permission command 7 to the power supplies 3 to 6 at regular intervals using the interrupt permission command generation means (step 10).
1).

When the power supply 4 receives the interrupt enable command 7 from the power supply control device 2, the power supply 4 generates an interrupt command 8 indicating that a change in the state of the power supply, such as a failure, has occurred in the power supply control device 2, using an interrupt command generation means. Send (step 102). Note that the interrupt command 8 does not include physical address data of the power supply.

When the power supply control device 2 receives the interrupt command 8 from the power supply 4, the interrupt disable command generation means transmits the interrupt disable command 9 to the power supplies 3 to 6 in order to identify the power supply that transmitted the interrupt command from any of the power supplies 3 to 6. 6 (step 103). After that, the power supply control device 2 transmits the status data request command 10 including the physical address data of the power supply 3 by the request command generation means (step 104).
).

Further, at the same time as transmitting the interrupt disabling command 9, the power supply control device 2 sets the instruction suspension means to suspend the instruction from the service processor 1. In this state, the power-on instruction 26 from the service processor 1 is suspended.

When the power supply 3 receives the status data request command 10, it transmits the status data 11 indicating the completion/disconnection completion status, normal/abnormal status, and presence/absence of status change to the power supply control device 2 (step 105). Here, since the power supply 3 is in a state where there is no state change, the power supply control device 2 transmits the state data request command 14 to the power supply 4 to which the next physical address data has been set (step 106).

Power supply 4 has status data 1 indicating abnormal status and status change.
5 to the power supply control device 2 (step 1.7). The power supply control device 2 uses the request command generation means to transmit a detailed information request command 16 to the power supply 4 based on the abnormal state and state change information in the state data 15 (step 108).
).

When the power supply 4 receives the detailed information request command 16, it transmits detailed information 17 regarding the power supply abnormality to the power supply control device 2 (step 109). When the power supply control device 2 receives the detailed information 17, it reports the detailed information 18 to the service processor 1 (step 200).

Next, the power supply control device 2 transmits an interrupt permission command 19 in order to detect the presence or absence of a change in the state of another power supply (procedure 20I). If there is a change of state in any of the other power supplies,
The power supply control device 2 receives the above-mentioned interrupt command 8 (step 102).
).

Thereafter, the above-mentioned steps 104 to 201 are repeated to complete the reporting of information from all the power supplies in which the abnormality has occurred to the service processor 1, and the suspension is released.

Next, the power supply control device 2 transmits an interrupt disable command 20 to all power supplies by the interrupt disable command generating means, and then sequentially transmits power on commands 21 to 24 to the power supplies R3 to R6. Then, after transmitting the all-power-on command, the power supply control device 2 transmits an interrupt permission command 25 to all the power supplies. This makes it possible to periodically monitor the occurrence of failures.

Note that the above-mentioned means are not particularly illustrated because well-known techniques and configurations can be used.

Effects of the Invention As described above, according to the present invention, an interrupt enable command is periodically generated for all power supplies, an interrupt command is generated from the faulty power supply in response to this interrupt enable command, and the interrupt command is In response to the reception, the service processor suspends the power-on instruction from the service processor, disables interrupt commands from low power supplies, collects fault information from the faulty power supply, and reports it to the service processor. This has the effect of preventing unreported failure information from being initialized by issuing a power-on instruction at any timing from .

[Brief explanation of drawings]

The figure is a diagram showing the operating procedure of an embodiment of the present invention. Explanation of symbols of main parts 1...Service processor 2...Power control device 3-6...Power supply External axis person Kofu NEC Co., Ltd.

Claims (1)

[Claims] (1) A service processor that issues power-on instructions, power-off instructions, abnormality processing, etc., a power control device that controls power in response to instructions from this service processor, and multiple power supplies controlled by this power control device. A power supply control method in a power supply system including means for generating an interrupt command in each of the power supplies in response to an interrupt permission command from the power supply control device generated in response to the occurrence of a failure in its own device. and means for generating failure information in response to a request command from the power supply control device, and means for causing the power supply control device to generate the interrupt permission command for the power supply at one regular cycle; means for suspending a power-on instruction from the service processor and generating an interrupt disabling command in response to receiving the interrupt command generated from at least one of the power supplies;
means for generating the request command in response to receiving the interrupt command; and means for reporting the fault information to the service processor in response to receiving the fault information; A power supply control method characterized by canceling a power-on instruction.