JP2003122428A - Controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve judgement on the importance of errors and operability if a number of errors have occurred. SOLUTION: An on/off switch is provided for determining whether or not each of errors in an error database 15 is to be displayed on an error display part 3 of the controller, and another on/off switch is provided for similarly determining whether or not the error is to be left in an error log file 7, whereby the unnecessary error display of the controller is canceled to improve judgement on the importance of each error and operability in the event that a number of errors have occurred.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an error display error log file recording method using a microcomputer and its control device.

[0002]

2. Description of the Related Art A control device for controlling industrial equipment has to perform various controls so as to perform its expected good functions, and even if some failure or malfunction occurs, an error message is issued. It was necessary to generate a warning (warning) message, notify the administrator of that, and prompt maintenance.

FIG. 6 is a block diagram showing the structure of a conventional error display error log file recording method and its control device. For the microcomputer 5, a front operation unit 1 in which an administrator operates the industrial equipment, an error display unit 3 for displaying an error in the industrial equipment to the administrator, a log file 7 for recording the usage status of the industrial equipment, its log A log file display section 6 for displaying a file to an administrator, various control sensors 10 for sensing the status of industrial equipment, an error control section 11 for controlling errors in the industrial equipment sensed by the sensor, and an error resulting therefrom as a database of errors. The error database 15 to be stored is connected and configured.

As a result, the situation of the industrial equipment is sensed, filed and displayed as a log, and if there is an error, the microcomputer records the error in the error database and warns the administrator of the error. Error was displayed.

[0005]

When a large number of errors occur in the industrial equipment, the administrator is required to judge the error which is important for the control device and the error which is not important for the control device. However, when a large number of errors occur in the conventional control device, regardless of the severity of the errors,
Since all errors are displayed in order of occurrence time, there are problems such as overlooking important errors and processing time. It is required to solve the error display problem.

An object of the present invention is to eliminate such a problem when a large number of errors occur.

[0007]

In order to solve this problem, the present invention provides an error display for each error before the error in the error database displayed on the display unit by the control device occurs. The configuration is such that a changeover switch (hereinafter referred to as a changeover SW) for selecting not to display an error is provided.

Further, the control device is provided with a switching switch for selecting whether to record in the log file for each error of the error database recorded in the log file or not to record in the log file.

Further, the control device is provided with a switch SW for generating and not generating an alarm sound when an error is displayed for each error display of the error database displayed on the display unit.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing the configuration of Embodiment 1 of the present invention. Microcomputer 5
, A front operation section 1 for operating the industrial equipment, an error display section 3 for displaying errors of the industrial equipment, a log file 7 for recording the usage status of the industrial equipment, and a log file display for displaying the log file 7. Section 6, various control sensors 10 for sensing the status of industrial equipment, and error control section 1 for controlling errors in industrial equipment sensed by the sensor
1. An error database 15 is connected and configured as a database for managing the types of errors.
These components are similar to the conventional ones described in the prior art.

Reference numeral 2 denotes a display ON / OFF selection operation section, which is displayed on the error display section 3 according to the content when the error control section 11 judges an error from the state of the equipment detected by various control sensors 10 as described later. The administrator can select whether to display or not display. 9
Is a log file ON / OFF selection operation unit, which is selected and determined by the administrator in advance, depending on the error content that occurs as described above, whether to record in the log file or not to record. The display ON / OFF selection operation unit 2 and the log file ON / OFF selection operation unit 9 are configured so that the administrator can set them as operation units, like the front operation unit 1. 4 is an error display buffer, which is formed between the microcomputer 5 and the error display unit 3,
Depending on the setting of the display ON / OFF selection operation unit 2, it is determined whether the error content to be displayed issued from the microcomputer 5 is actually displayed or is stored in the buffer. Similarly, the log file buffer 8 is also configured between the microcomputer 5 and the log file 7, and the log file ON /
Whether the error notified by the display issued from the microcomputer 5 according to the setting of the OFF selection operation unit 9 is actually recorded in the log file 7 with the contents to be recorded in the log or is not recorded in the log file 7 and is accumulated in the buffer 8. Can be predetermined.

The operation of the control device of this embodiment having the above-described configuration will be described with reference to the operation flowchart of FIG. In the flowchart of FIG. 2, the first three steps (that is, steps 21 to 23 (hereinafter, step is simply referred to as S. The same applies hereinafter)) are processes for setting whether to display an error or not. The operation after S24 is the operation when an error occurs. First, in S21, the error display section 3 is used to display a list of error databases from the microcomputer 5. Next, in S22 and S23, the administrator sets whether or not to display those errors.

FIG. 3 is a schematic diagram showing an example of the error database list display and selection of the switching SW. In FIG. 3, the switch SW is set by the index method, and it can be set whether to display or not depending on the content of the error accumulated in the error database 15. Figure 3
Then, No. 1 "A does not X" error, and
No. No. 3 is set to display for the error "C does not Z". No error 2 is set to be displayed for the error "B becomes Y". In this example, only three items are illustrated as the content of the error,
Needless to say, more errors can normally be set in the error database 15, and the error database 15 may be classified into each category.

Next, at the stage of managing the equipment, it is supervised by monitoring various sensors of the equipment for any error. When an error occurrence is detected (S2
4), the error control section 11 sends information to that effect to the microcomputer 5. As a result, the microcomputer 5 checks how the error is set and defined in the error display buffer 4, that is, whether the error does not have to be displayed or has to be displayed (S25). ,
As a result, an instruction to display the error display unit 3 (S26) or not is issued.

Similarly, whether or not the error content is recorded in the log database is performed based on the operation flowchart shown in FIG. Also in this case, as in FIG. 2, S41 to S43 are operations related to setting, and S44 to S4.
Reference numeral 6 relates to the operation of recording processing in the log file when an actual error occurs. The display can be switched by displaying the list of error databases and switching the log file record thereof as shown in FIG. As a result, whether or not to record in the log file is selected according to the content of the error that has occurred.

(Second Embodiment) FIG. 5 shows an operation flowchart of the second embodiment of the present invention. The second embodiment shows a combination of the first embodiment with the operation of checking the display of the error and the checking of the recording of the error in the log file, and its configuration is the same as that shown in FIG. is there.

In FIG. 5, in S51, a changeover switch for setting whether to display the error contents in the error database and display an error for each of them, and whether to record the error in a log file. Is displayed. When the changeover switch is set by the setting of the administrator, the contents are stored in the respective buffers. Next, when an actual error occurs, the microcomputer sends the content of the error that has occurred to each buffer, determines display / non-display according to the setting stored in the buffer, and displays or hides accordingly. Regarding the recording to the log file, similarly, it is judged from the selection content left in the buffer, and based on that, whether or not to leave the log file is determined.

In the above description, an example in which an error database is used for a plurality of errors has been described, but the same applies to the case where there is no other error database or the error database is configured for one error. Can be implemented in

Further, the contents of the above-mentioned setting may be notified to the outside, for example, to the control device or the maintenance department or management department of the industrial equipment via the communication unit 13. As a result, not only maintenance can be automated, but also the setting of the switching SW is statistically known according to the error content, and is set as a default in advance.
That is, it can be improved to standard settings such as factory settings. In particular, it is also possible to know errors that occur frequently, how the administrator is displaying errors and managing log files for those errors, and automatically perform product market research, user research, etc. It can be carried out.
It goes without saying that in the case of such communications, the communications must be encrypted so that their contents are not known to a third party.

Regarding the error display, a signal may be output from the microcomputer 5 to sound output means such as a buzzer (not shown) so that an alarm sound is generated when an error occurs. The volume may be set in advance due to an error. In this case as well, similar to the above, it is sufficient to set with the changeover switch according to each error content displayed from the error database. good. In addition, the error display switching switch,
Or switch SW of log files, or both SW
A warning sound may be generated when is “displayed” or “leaved”.

Further, depending on the error output from the various error control units 11 according to the device status, the judgment level of the device status which is the source of the error may be changed. That is, for example, with respect to a certain management value that sets an allowable value up to 10 out of 100, and sets the reference level for warning occurrence to 15 degrees, the average value of about 30 degrees is increased to that of 25 degrees. When the average is lowered, it can be sensed that some trouble has occurred inside the device, so it is possible to change the reference level for issuing a warning to 20 degrees and make it sensitive to the error. Of course, this can also be set by the setting of the changeover switch by the administrator. On the contrary, it is possible to set the reference level lower than usual and set it insensitive.

[0023]

As described above, according to the present invention, it is possible to obtain an advantageous effect that the operability can be improved by eliminating the error display and the trouble of the log file when a large number of errors occur at the time of abnormality. .

[Brief description of drawings]

FIG. 1 is a configuration block diagram showing a control device according to an embodiment of the present invention.

FIG. 2 is an operation flowchart of error display of the same.

FIG. 3 is a schematic diagram of a setting screen for error display.

FIG. 4 is a flowchart of an operation for recording a log of error contents.

FIG. 5 is an operation flowchart of error display setting and error content log recording according to the second embodiment.

FIG. 6 is a configuration block diagram of a conventional control device.

[Explanation of symbols]

1 Front operation part 2 Display ON / OFF selection operation section 3 Error display section 4 Error display buffer 5 Microcomputer 6 Log file display area 7 log files 8 Log file buffer 9 Log file ON / OFF selection operation unit 10 Various control sensors 11 Various error control units 12 Various LSI signal processing error judgment section 13 Communications department 15 Error database

Claims (12)

[Claims] 1. A control device provided with a changeover switch for selecting whether or not to display an error for one error display displayed on the display unit by the control device. 2. A changeover switch for selecting whether or not to display an error for each error of the error database displayed on the display unit by the control device is provided.
The control device described. 3. A control device provided with a changeover switch for selecting whether to record to a log file or not to record to a log file for one error display that the control device records to a log file. 4. The control device according to claim 3, further comprising a changeover switch for selecting whether or not to record in the error log file for each error of the error database displayed on the display unit by the control device. 5. A control device provided with a changeover switch capable of varying a reference level for error display with respect to one error display displayed on the display unit by the control device. 6. The control device according to claim 5, further comprising a changeover switch capable of varying a reference level for error display for each error of the error database displayed on the display unit by the control device. 7. A control device provided with a changeover switch for selecting whether or not to generate a warning sound when an error is displayed for one error display displayed on the display unit by the control device. 8. The control device according to claim 7, further comprising a changeover switch for selecting whether or not to generate a warning sound when an error is displayed for each error of the error database displayed on the display unit by the control device. 9. A control device provided with a changeover switch capable of varying the volume of a warning sound when the control device displays an error for one error display displayed on the display unit. 10. The control device according to claim 9, further comprising a changeover switch capable of varying a volume of a warning sound when the control device displays an error in the error database displayed on the display unit. 11. An error display method to which the control device according to claim 1 is applied. 12. A method for recording an error log file to which the control device according to claim 1 is applied.