JPS63142440A - Microcomputer incorporating device - Google Patents

Abstract

PURPOSE:To facilitate error checking without hindering system operation by registering contents of an error on a memory at the time of detecting the error by a program and operating the system unless the system operation has an influence upon the error with respect to a device which connects a console and a display device only at the time of maintenance. CONSTITUTION:If an error occurs, error information 2 is reported to an error register program 4 through an error detection reporting line 3 by an error detection program 1 and a table 5 is referred to queue 9 an error register processing program 4 in an error information queue 8. Then, the console and the display device are connected at the time of maintenance, and error information in the queue 8 is displayed on the display device in response to the error display request from the console.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a device with a built-in microcomputer that operates 24 hours a day continuously, for a long period of time, and unattended, and particularly to an intelligent telecontrol device equipped with a microcomputer in a remote monitoring and control system. It relates to devices with built-in microcomputers, such as telemeter slave station devices.

[Conventional technology]

Conventionally, when an error is detected in a program in this type of equipment, the memory state is saved by stopping the operation with a halt command, and maintenance personnel either go to investigate and take action, or ignore the error. The process from initialization was to be performed again.

[Problem that the invention seeks to solve]

With the conventional devices described above, in the former case, it takes time for maintenance personnel to take action after an error occurs, which can seriously impede the operation of the entire system, and in the latter case, error information is not retained. Because there is no error investigation/
The problem was that the treatment was extremely difficult.

[Means for solving problems]

The microcomputer built-in device of the present invention is a microcomputer built-in device which is equipped with a microcomputer, whose operation is controlled by its program, and which does not always have an operation console and display device, and which is connected only during maintenance. When an error is detected in a program, its contents are registered in a memory, and the program can continue operating as long as the error does not affect it.

〔Example〕

Next, the present invention will be explained using the drawings.

First, regarding the function when an error occurs, in FIG. 1(a), 1 is a program group that detects an error, and when an error occurs, error information 2 is notified 3 to the error registration processing program 4. The error registration processing program 4 refers to the error registration processing table 5, queues 9 in the error information queue 8, and ends the processing. In addition, 6 is the number of error registrations,
7 is a pointer to the error information queue.

Next, if you want to display the registered error information, please refer to Figure 1 (
As shown in b), the display device 13 and the console device 14 are connected, and the console device 14 issues an error display request 11 to the error information display processing program 10. The error information display processing block 10 that receives this dequeues the error information from the error information queue 8, edits its contents, and issues a display request 12 to the display device 13.

〔Effect of the invention〕

As described above, according to the present invention, even after an error occurs, normal processing can be continued as much as possible while retaining error information in memory. This ensures the operation of the device from the time an error occurs until the start of maintenance work, and
This has the effect of ensuring that information necessary for investigating the cause of the error is retained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the invention. 1... Program group that detects errors, 2... Error information to be notified, 3... Error detection notification, 4...
Error registration processing program, 5... Error registration processing table, 6... Number of error registrations, 7... Error information queue pointer, 8... Registered error information queue, 9... Error Queuing of error information by registration processing program, 10... Error display processing program, 11... Error information display request, 12...
- Dequeuing error information and requesting error information to be displayed on a display device, 13...display device, 14...operation console device.

Claims (1)

[Claims] If an error is detected in the program in a device with a built-in microcomputer that is equipped with a microcomputer and whose operations are controlled by its program, and which is not always equipped with an operator console or display device and is connected only during maintenance, A device with a built-in microcomputer that allows the contents to be registered in memory and to operate as long as the above-mentioned error does not affect the device.