JPH06195111A - Equipment state monitor - Google Patents

Abstract

PURPOSE:To constitute the monitor so that even a general operator having no technical knowledge can operate it, and an abnormal state can be grasped in a short time. CONSTITUTION:In an operator room, an indicator 13 with a touch key is provided. In such a state, it is connected to a programmable controller 11 for controlling a monitoring equipment with a 2-pair twist cable 12 and information of the program-mable controller 11 is fetched, and operation and fault states of the monitoring equipment are displayed in the indicator 13 with a touch key. Also, by a command from the side of the indicator 13 with a touch key, an arbitrary program can be extracted from a program group of the programmable controller 11, and also, control information is displayed in accordance with a display program of the indicator 13 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of easily determining an abnormality of equipment in an equipment having a possibility of causing a wide variety of equipment abnormalities even by an operator having no specialized knowledge, and promptly recovering from the abnormality. The present invention relates to an equipment condition monitoring device that can be performed.

[0002]

2. Description of the Related Art As a device of this type, there is a "fault recovery support device" disclosed in, for example, Japanese Patent Laid-Open No. 2-285423. The device senses, for example, that a failure has occurred in any of the equipment (eg, an alarm sounds,
When the operator confirms it by turning on the abnormality warning light, etc.), the maintenance personnel immediately bring the failure recovery support device to the location of the failure. Then, at the site, a specific floppy disk (where failure prediction and countermeasures are stored in advance for each control device, equipment, etc.) is loaded into the external storage device built into the failure recovery support device and the operation is performed. When started, the predicted failure content is displayed in the form of a list on the display of the failure recovery support device.

Therefore, the maintenance personnel are informed of the situation at the site, for example, the situation informed by the appearance of the control device (display,
Failure information is input by observing a particular indicator lamp) and selecting the item corresponding to the failure content displayed on the display and keying in the item. This input data is stored and saved in the external storage device.

Then, a flow chart corresponding to the support contents at the present time is displayed on the display as an image, scrolled sequentially with the progress of the support processing, and a comment sentence to be interacted with the maintenance staff at that time is displayed in the window.
This interactive method completes the failure recovery.

[0005]

However, in the case of the above-mentioned failure recovery support device, after a failure occurs, the maintenance personnel carry the failure recovery support device without being able to grasp the abnormal state regardless of the weight of the failure. The reason for the failure is to be found only after rushing to the site and entering the failure information.
It is effective for complex and time-consuming failures, but it is inefficient because it takes too many steps and takes time for relatively minor failures that the operator can also deal with.

[0006] Further, until the maintenance staff carries out the restoration work, the operator cannot put any effort into the restoration work, resulting in a waste of time before the restoration of the failure.
A general operator who does not have specialized knowledge cannot operate anything during that time, and cannot know what kind of situation the abnormal state is.

Therefore, the main problems of the present invention are to have an equipment condition monitoring device in the operator room so that it can be viewed when desired, and even a general operator who does not have specialized knowledge can operate it, and an abnormal condition can be grasped in a short time. It is an object of the present invention to provide an equipment condition monitoring device that satisfies the conditions such as that of being a device capable of promptly dealing with a relatively minor failure.

[0008]

According to the above object, an operator room is provided with a display with a touch key, and the display with the touch key is linked with a programmable controller for controlling monitoring equipment, and information of the programmable controller is taken in. A facility condition monitoring device for displaying the operation and failure state of the monitoring facility on the display with a touch key, wherein an arbitrary program is selected from a program group of the programmable controller according to a command from the display with the touch key. Can be extracted and the problem can be solved by displaying the control information according to the display program on the display side.

[0009]

In the present invention, a display with a touch key is installed in the operator's cab and linked with a programmable controller for controlling the monitoring equipment. Therefore, it is possible to freely call the program of the programmable controller from the display unit with a touch key and use the program to create a display program. Moreover, since the operating conditions and abnormality information of the equipment are directly captured in the display with a touch key, that is, the operator does not have to input specific failure information, so even if the expert knowledge Even an operator who does not have one can operate it.

Further, by organizing the operating conditions such as operating switches and position detection in the program of the programmable controller for each device, all the operating conditions of each device can be displayed on the display with a touch key. .

When a facility failure occurs, a search for identifying the cause of the failure, etc., is performed by scrolling the display screen step by step according to the operator's selection branch, considering the number of operating conditions and the restrictions on the screen of the display with a touch key. However, the method of finally identifying the abnormal place and the cause and displaying the countermeasures against it is most suitably adopted.

Further, by making it possible to change the timer of the programmable controller from the display with a touch key, it becomes possible to easily change the timer from the operator's room.

[0013]

EXAMPLES The present invention will be described in detail below based on examples.
In FIG. 1, a programmable controller 11 (hereinafter, also referred to as a PLC) and a display 13 with a touch key are connected by a 2-pair twist cable 12 via a special card. The programmable controller 11 is
This is a general-purpose sequence control device that has been developed in recent years, and has a small computer built in, and the computer controls the correspondence between input signals and output signals according to a program. As the programmable controller 11, a small-capacity PLC of 1 K words (16 bits) or less to a large-capacity PLC of 4 K words or more are prepared, but the large-capacity PLC is used for plant control or large-scale equipment control. However, for other control, a medium capacity PLC having a memory capacity, easiness of programming, various arithmetic functions, and abundant input / output functions is most often used. Note that the illustrated example illustrates a model that can use a numeric (BCD) input / output card.

The method of operating the fault condition monitoring device will be described below. For example, the case where the extrusion device of the equipment fails and stops during operation will be taken as an example, and will be described in detail in order. In the menu screen 1 of the display unit 13 with a touch key shown in the upper part of FIG. 2, the item No. 2 “Extrusion interlock confirmation” is selected and touched. Then, the screen shifts to the screen 2 of "Extrusion interlock confirmation". Search the screen where the relay symbol is not ON. At this time, if the diesel clutch relay is not turned on, touch the symbol. Then, the screen moves to the next screen 4, displaying the cause of the failure such as "The diesel clutch LS is operating.", And responding such as "Inspect the site." Show comments.

Next, on the "extrusion interlock confirmation" screen 3 shown in FIG. 3, the extrusion safety relay symbol is turned on.
I will follow up the case when I have not done so. By touching the relay symbol, the screen shifts to the "extrusion safety confirmation" screen 4. Looking at screen 4, the relay symbol for the variable cam error is not ON. Therefore, when you touch the relay symbol of the variable cam error, the screen shifts to screen 5 and the cause of the failure is displayed, such as "An error has occurred in the extrusion variable cam." And "Please contact maintenance electricity". Display the correspondence.

As described above, when a failure occurs, the operator can quickly grasp the failure state and can judge whether or not the failure can be dealt with by the comment displayed, and all the failures can be determined. Compared to the case of leaving it to maintenance personnel, it is possible to reduce wasteful time.

Next, the programmable controller 11
A procedure for changing the set value of the timer from the display with a touch key and changing the set value will be described with reference to FIG.

On the menu screen 1, when the No. 1 "timer set value change" number portion is touched, the screen shifts to the "timer list" screen 6. Therefore, when the name number of the timer to be changed is touched, the screen is changed to the "setting value change" screen 7. On this screen, change the timer setting value by operating according to the setting value changing procedure.

In addition, as shown on the lower side of the menu screen 1, "confirm current position" and "HELP" are displayed.
Have a function. As shown in the screen 10 of FIG. 6, the “current position confirmation” function displays a progress display band for extrusion and leveling so that the current position can be immediately known. The "HELP" function, as shown in screens 8 and 9 of FIG. 5, displays a response to a communication abnormality, for example.

Further, as an additional function, assuming that the CPU of the programmable controller 11 is down due to a failure, a program is created on the display unit 13 with a touch key and the display unit 13 with a touch key is forced to execute a program. It is also possible to operate the output relay of the programmable controller 11. This is effective when the device stops halfway and it is necessary to recover urgently.

[0021]

As described above in detail, according to the present invention, the following effects can be obtained.

(1) By constantly equipping the operator's cab with a facility condition monitoring device that can be operated by general operators who do not have specialized knowledge, the operator can monitor the facility condition without calling maintenance personnel when an abnormality occurs in the facility. By operating the device, you can quickly find the abnormal part of the equipment. Also,
Measures for abnormalities are also displayed in the comments, and the operator responds to simple failures, so the number of times maintenance personnel are dispatched is greatly reduced.

(2) Since the operating condition of each device can be displayed on the equipment condition monitoring device, even a person who is not familiar with the equipment can operate while checking the display.

(3) Since the time setting program of the timer of the programmable controller can be changed from the equipment state monitoring device, the operator can operate and change it when the timer setting is changed, which eliminates the need for dispatch of maintenance personnel.

[Brief description of drawings]

FIG. 1 is a block diagram of an equipment state monitoring device according to the present invention.

FIG. 2 is a diagram for explaining an operating procedure on a display unit with a touch key.

FIG. 3 is a diagram for explaining an operating procedure on a display unit with a touch key.

FIG. 4 is a diagram for explaining an operating procedure on a display unit with a touch key.

FIG. 5 is a diagram for explaining an operating procedure on a display unit with a touch key.

FIG. 6 is a diagram for explaining an operating procedure on a display unit with a touch key.

[Explanation of symbols]

11 ... Programmable controller, 12 ... 2 pair twist cable, 13 ... Display with touch key

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Rinoshima Hirashima, Kashima-machi, Kashima-gun, Ibaraki Prefecture, Sumitomo Metal Industries, Ltd. Kashima Works

Claims (3)

[Claims] 1. A display unit with a touch key is provided in an operator room, and the display unit with a touch key is linked with a programmable controller for controlling monitoring equipment,
A facility state monitoring device that captures information of a programmable controller to display the operation and failure state of the monitoring facility on the display with touch keys, the program of the programmable controller according to a command from the display with touch keys An equipment state monitoring device, wherein an arbitrary program can be extracted from the group and the control information is displayed according to a display program on the display side. 2. The display unit with a touch key scrolls a display screen step by step according to a selection by an operator, finally identifies an abnormal place and a cause, and displays a countermeasure against it. Item 1. An equipment condition monitoring device according to item 1. 3. The equipment state monitoring device according to claim 1, wherein a timer of the programmable controller can be changed from the display side with the touch keys.