JPS58137062A - Hung-up detection system - Google Patents

Abstract

PURPOSE:To detect unexpected failures early, by unifying a control program with a module for each function, providing an instruction of timer start and stop at the beginning and end of the module and generating an alarm when the timer is not stopped. CONSTITUTION:Control programs written in an ROM1 are unified into modules for each function as moduleI, II, and a monitor timer 2 monitoring the operating state of each module is provided. A timer drive control instruction A to drive the timer 2 is written at the beginning of each module and a stop instruction B stopping the operation of the timer 2 is written at the end. Each timer value is taken as a value exceeding the estimated maximum until the module is finished. When a timer 2 is not stopped at the instruction B due to any cause and the module set value is elapsed, the timer 2 gives an interruption request signal IRQ to a MPU3 for the report. The MPU3 activates a hung-up detection program 1-1, reads out the detailed information of the hung-up and detects its cause.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a hang-up detection method, and in particular to a hang-up detection method for a control program 2 of a MicroPro Dragon Tuna built in a device such as a combiator device.
It detects the location and notifies you of it.

(2) Conventional technology and problems Recently, various peripheral devices for data processing equipment.

For example, a KO1 chip CPU is used in an input/output device, data is written in a ROM, and the data is controlled by a control system. For such devices, 1. there is an error processing program in place to deal with hardware errors that normally occur when using the device, and 9. countermeasures are in place for errors that are expected to occur. It is being taught. However, if an unexpected accident occurs, such as an input/output connector coming off and making it impossible to send out a signal, the 9th floor meeting has no measures in place to deal with this. The occurrence of an accident cannot be detected until it is noticed, and then it is very late to confirm the abnormal part10, and then the device returns to normal (IK dark time problem) exists.

SUMMARY OF THE INVENTION The purpose of the present invention is to promptly detect the occurrence of an unexpected accident and report it to the processor in order to improve this problem.

As a result, a hang-up detection method is provided for detecting in which part of the control program O an unexpected accident has occurred.

(4) Structure of the Invention In order to achieve the above object, the hang-up detection method of the present invention uses a data processing device equipped with a processor and a control memory in which a control program for controlling the processor is stored. .

A timer that starts based on the start signal and stops based on the stop signal is provided, and an L control program is provided in units of joules for each function in the control menu, and a start that starts the timer at the beginning of the module. A stop command is provided at the end of the module to stop the timer. - When the set time elapses without stopping, a signal reporting the occurrence of an abnormality is output.

(51st Embodiment of the Invention) Before describing the structure of the present invention in detail based on one embodiment, its outline will be briefly explained based on FIG. 1.

In this invention, ROM (Read Only Memo
ry) The nine control grograms entered in 1 are converted into module units for each function and converted into module 1. Module 1.4 modules are installed, and a monitoring module 2 is separately provided to monitor the operating status of each module. And the tie that drives the monitoring tie-v-2 at the beginning of each Zaki Joule I, I, I...! - A drive control command is entered, and finally a stop command B for stopping the operation of the forest monitoring timer 2 is entered. Then, ζO tie 1 - drive control command person is entered with line monitoring' tie fee - 20 timer meal,
This Thailand! - The value is the maximum expected time until the end of this skeleton, which is apparently a nine-value Todoroki (1-1,
2,...).

Therefore, when the device is controlled based on the nine control products stored in the ROM 1, the watchdog timer 2 is set at the beginning of the fourth hour, and the watchdog timer 2 is stopped when the peak hour ends.

At the beginning of the 904th cycle, the watchdog timer 2 will be fired again. If an unexpected failure occurs and a hang-up occurs in that module, the control program does not progress and the timer value set in the monitoring timer 2 elapses.

Monitoring timer 2 outputs an interrupt request signal IRQ to the processor. This allows the processor to detect which module has hung up.

This can be dealt with immediately.

An embodiment of the present invention will be described below based on FIG. 2.

In the figure, the same reference numerals as in FIG. 1 indicate the same parts, and 1 indicates the ROM.
, 2 is a monitoring timer, and 5 is a processor.

4 gets married by passing.

ROMIFi, a control program for the same device to be controlled, and a hang-up detection processing program that detects and processes hang-ups are written.

And this control program.

As shown in Figure 1, each function is divided into module units and subdivided into modules I, I, I, etc. At the beginning of each module, K is filled in with tights - drive control command, and at the end is A stop command B for monitoring tie-r-2 is written. The set value T1 of the timer drive control command KFi monitoring timer 2 in the module IK is entered, and this set value T1 is set to nine values based on the maximum time expected until this module I finishes. ing. During the discussion, each timer drive control command in modules 1, -1, .

Chi... is entered.

The monitoring tie-v-2 detects the occurrence of a hang-up based on the abnormal condition (■) in each peak module, and issues a timer drive control command at the beginning of each module I, 1.1... Is that the specified setting value? , , T, , T, . . . are set and activated, and each module 1, 1 . It is stopped by a stop command B at the end of I....

When the set time elapses due to some circumstances, it outputs an interrupt request signal IRQ to the processor and reports this.

The processor 5 performs overall control of the peripheral devices, and is composed of, for example, a micro processor tK, and also includes a timer interrupt response section 3-1. This Thailand! - Interrupt response unit 3-1 is a monitoring tie! It operates when the interrupt request signal IRQ is transmitted from -2, transfers control to the hang-up detection processing program, and performs an operation to detect at which Geniere a hang-up has occurred.

Next, the present invention will be explained in detail.

■ Because the processor 5 operates two peripheral devices.

It is written in ROMIK and operates based on nine control programs. Here, the control program is as shown in FIG. The timer drive control command A is written at the beginning of each module. Then the control program 2 outputs 1. ．． I
, I, . When the operation by the module I is normally performed, the monitoring tie-r-2 is stopped before the set value Txt has elapsed due to the nine stop command B written at the end thereof. Then, at the beginning of the next module ■, the timer drive control controller sets the timer 2 to the set value T, starts it again, and fills in at the end when the operation by the module ■ is normally performed. The monitoring timer 2 is stopped by the stop command B. When the control operation in each module is performed normally in this manner, the monitoring timer 2 is stopped before reaching its set value and the process is shifted to the processing of the second module.
For example, if an unexpected abnormality (for example, a disconnected connector) occurs during the operation of Moziere ■, a hang-up will occur in the 1% joule, and the control program will simply repeat the operation according to the control program in the same range in a specific category. does not progress beyond the area where the hangup occurs. By repeating this process, when the set value Tst set by the initial timer drive control ° command λ of the timer 2 module ■ has elapsed, an interrupt request signal IRQ is output to the processor 3. . As a result, the processor 5 activates the timer interrupt processing section S-1 and operates the /-up detection #1 & processing program 1-1.

■ The hang-up detection IIJ111 program reads the module number where the hang-up occurred, the position where the hang-up occurred in that module, and the status of the check register at the time of failure.This is omitted from the diagram. It is stored in the memory and reports the occurrence of the no-1 up to the operator. Based on this hang-up occurrence report, the operator reads out the detailed information of the /SS Dougup and then
It is possible to detect the L cause.

Incidentally, the monitoring tie i- may be a count own amplifier base or a count down base.

Then, instead of setting each module to a value unique to that module, it can be set to a common value for food joules.
(6) Effects of the Invention According to the present invention, the control program is divided into modules and subdivided, and a monitoring timer for the module monitor is set at the beginning. D, which can be operated to start and stop it at the end, issue an alarm when the monitoring timer reaches a set value, and perform fault detection control;
Even in the case of an unexpected failure, it is possible to deal with it and notify the location of the failure. According to the present invention, it is possible to overcome both hardware failures and seven-arm square failures.

[Brief explanation of drawings]

Figure 11a is a tie-i control state explanatory diagram of this invention. In the figure, 1 is ROM, 2 is a monitoring timer, and 5 is Hiro I set.
, 4 indicate paths, respectively. Patent applicant Fujitsu Ltd. Representative Patent Attorney Akira Yamatani Eisai jf! 1

Claims (2)

[Claims] (1) In a data tin layer device equipped with a control memory in which a control program for controlling the pro-controller and wrinkle pro-7t is stored, a timer is used to start the meeting based on a start signal and stop based on a stop signal. The control layer menu K includes a control program divided into 4-gear units for each function, and also provides a start command to start the timer at the beginning of the control layer. A hang-up detection method, characterized in that a stop command is provided to stop the timer, and when the set time elapses without stopping the timer, a signal reporting the occurrence of an abnormality is output. (2) The hang-up detection according to claim (1), wherein the timer is configured such that a timer value is set based on a write command from the program. method.