JP2000311014A - Industrial plant controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and speedily obtain required information when a fault occurs or when periodical maintenance is required in an industrial plant controller. SOLUTION: A system monitoring device 1 monitoring the system state of an industrial plant controller is provided with a system state monitoring part 9 monitoring a system state and a system state storage part 10 storing a state signal detected by a system state monitoring part 9. Then, required information (fault restoring method, maintenance article keeping place, maintenance period and its method) can be obtained by switching the display screen of a system display unit 5 with a state change (fault occurrence)/maintenance period detection signal detected by the system monitoring device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system display which is installed in an industrial plant controller system main body and displays the status of the plant controller itself.

[0002]

2. Description of the Related Art FIG. 13 is a diagram showing display contents on a system display installed in a conventional industrial plant controller, for example. The display contents of the system display installed in the conventional industrial plant controller can grasp the state of the system, but cannot display the judgment of the fault location and the remedy.

[0003] In recent years, a display device combining a touch panel and a graphic display has been used, but attention has been paid to the operation / monitoring of a plant to be controlled, and the industrial plant controller itself has been used. For the monitoring of, the operator was switched to a failure display screen, and the person in charge was entrusted with the subsequent judgment by displaying the failure location.

[0004]

Since the conventional system display of the industrial plant controller is constructed as described above, when an abnormality occurs in the industrial plant controller, a failure display screen is displayed and the cause of the failure is determined. It was necessary to confirm and to refer to the manual and the like for the identification of the fault location and its recovery work, which was not usually referred to much, so that it took time for recovery. Further, in the conventional system display of the industrial plant controller, little attention was paid to display items other than the failure display.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an industrial plant controller that can easily recover from a failure and that can easily perform maintenance and inspection. The purpose is to obtain a system display for a plant controller.

[0006]

According to a first aspect of the present invention, there is provided an industrial plant controller which receives a system status signal and has a means for storing the signal, and a system monitoring signal transmitted from the system monitoring device. A system display that switches to a failure display screen based on a display screen switching signal, a failure display signal, and a recovery message display signal, and from a system monitoring device to a system display after a preset time has elapsed. A means for outputting a display screen switching signal and a restoration message display signal is provided.

An industrial plant controller according to a second aspect of the present invention includes means for detecting that the voltage output of a battery or the like has dropped, and transmitting a voltage drop detection signal and a display screen switching signal to a system display. It is a thing.

An industrial plant controller according to a third aspect of the present invention is provided with a means for inputting a message so that a message such as a storage location of a maintenance item can be displayed on a system display. .

An industrial plant controller according to a fourth aspect of the present invention transmits an input message to a plurality of other industrial plant controllers via a network.

An industrial plant controller according to a fifth aspect of the present invention has a system display function for displaying, when a minor failure occurs, a severe failure that may be secondary induced by the minor failure. It is what we have.

An industrial plant controller according to a sixth aspect of the present invention has a function of displaying a recommended position of an additional card together with precautions at the time of addition when an input / output card is required. It was made.

According to a seventh aspect of the present invention, there is provided an industrial plant controller in which a system display has a function of displaying a description of each device constituting the industrial plant controller and a document number of an operation manual. .

An industrial plant controller according to claim 8 of the present invention is provided with a function of displaying a failure display screen for the first cause of a major failure in a system display.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a block diagram showing an industrial plant controller according to a first embodiment of the present invention. In the figure, reference numeral 1 denotes a system monitoring device for monitoring a system state of the industrial plant controller, and 2 denotes the plant controller. CPU
Reference numeral 3 denotes a plant signal input / output unit for performing input / output for control to the industrial plant controller. Reference numeral 4 denotes a power supply device for supplying power to devices in the plant controller. Reference numeral 5 denotes a system display installed in the plant controller. And a touch panel and a graphic display such as a liquid crystal display. Reference numeral 6 denotes an I / F unit with various networks connected to the industrial plant controller, and reference numeral 7 denotes a device constituting another industrial plant controller.

Reference numerals 8 to 12 denote internal components of the system monitoring apparatus 1. Reference numeral 8 denotes a signal input unit for inputting a system status signal, and reference numeral 9 denotes a system status monitored by a signal input from the signal input unit 8. System status monitoring unit,
Reference numeral 10 denotes a system status storage unit that stores signals detected by the system status monitoring unit 9, 11 denotes a data display processing unit that performs data processing for transmitting the stored data to the system display 5, and 12 denotes a system display. It is a system display device I / F section for transmitting and receiving signals between the monitor 5 and the system monitoring device 1. 13 to 16 are block diagrams showing components inside the system display 5; 13 is a system monitoring device I / F unit; 14 is a data display processing unit; 15 is a graphic display / touch key processing unit; The system configuration storage unit is a unit that previously stores constituent device display screens and display contents of the industrial programmable controller.

Next, the operation will be described. When a failure occurs in the CPU unit 2, the plant signal input / output unit 3, the power supply device 4, the network I / F unit 6, and the other devices 7 which are the components of the industrial plant controller, the signal is sent to the system monitoring device 1. Input and system status monitoring unit 9
A failure is detected. The signal detected by the system state monitoring unit 9 is stored in the system state storage unit 10,
Based on the stored signal, the data display processing unit 11 outputs a switching signal to a failure display screen corresponding to the detected failure,
A 15-system display unit 5 displays a failure display signal of a device corresponding to the failure and a recovery message display signal for the failure.
Send to

The display of the failure and the display of the recovery method are performed for each device (CPU card, CPU unit fan, power supply, etc.) constituting the industrial plant controller, so that the data display processing in the system monitoring apparatus 1 is performed. The failure factor identification process of the unit 11 is performed as a failure input signal unit to facilitate the identification of the failure factor, and the recovery method is replaced by a maintenance product or restarted after resetting the plant controller system. Operators should be able to respond easily.

In the system display 5, the system monitoring device 1
Screen switching signal, failure display signal, and recovery message display signal transmitted from the system monitoring device I / F.
The data display processing unit 1 combines the data with the screen display information received by the unit 13 and registered in the system configuration storage unit 16.
The display is switched to the failure display screen by 4 and a display is provided so that an operator such as a maintenance person can easily identify the abnormal location, for example, by blinking the failure location. Thus, the operator is notified of the occurrence of the failure, and the recovery method for the failure is displayed, so that the operator can easily know the failure recovery procedure. FIG. 2 is an example of a display screen. When a failure occurs, a signal from the system monitoring device 1
The operator can obtain a failure location and a countermeasure for the failure without switching the screen.

The system display of the industrial plant controller according to the present invention as described above is a system display installed on the surface of the plant controller and having a graphic display and a man-machine interface using touch keys. When an error occurs in any of the component devices, the screen is switched in advance, the failure location is displayed, and the failure recovery means is notified to the operator such as maintenance staff, so that the failure location can be easily and quickly grasped and recovery means obtained. Is made possible.

The failure detection by the failure detecting means is as follows.
CPU cards, communication cards, power supply units, etc. are usually maintained as units that are stored in factories, so that the structure of the failure detection means and failure storage means can be simplified, and recovery methods can be easily specified. I do. In addition, the system display is not limited to the one that is installed on the surface of the plant controller. If the display is installed in a place where the display is easy to see and operate when looking at the plant controller, the position is not particularly specified, and the industrial plant controller is not required. It should just be one.

In the above description, the screen of the system display is switched in advance when a failure occurs, and only the operator, such as a maintenance person, can easily know the failure location and the recovery method. However, the system monitoring device 1 has a clock function. And count the time,
When a preset time has elapsed, the system monitoring device 1 sends a screen switching signal to the system display 5 together with a screen switching signal.
A message display signal requiring maintenance may be output. FIG. 3 is a block diagram showing an example in which a timer unit 17 is added to the inside of the system monitoring apparatus 1 in FIG.

The time counted by the timer section 17 is
Input to the data display processing unit 11. Data display processing unit 1
In step 1, the maintenance time for each of the equipment of the industrial plant controller set in advance for the equipment requiring periodic inspection is held, and when the count value becomes larger than the held value by comparison with this, the system indicator is displayed. 5
, A screen switching signal and a maintenance location display signal are transmitted. The screen is switched on the system display 5 by this signal to notify an operator such as a maintenance person of the fact that the inspection time has come and the maintenance method.

FIG. 4 is an example of a screen for notifying an operator such as a maintenance person of maintenance. By switching the screen between the system monitoring device 1 and the system display 5 when the maintenance time comes, the operator can easily obtain the maintenance time and the maintenance method. Further, by performing a counter reset operation for counting time after the end of regular maintenance / inspection, the counter is reset, and it becomes possible to perform almost accurate time counting until the next inspection time. Similarly, the present invention can be applied to a fan whose replacement by life is recommended, such as a fan, based on time counting.

As described above, when it is time to perform a periodic check on a device such as a filter, which requires a periodic check, the screen is switched to a maintenance information display screen for the device requiring a corresponding maintenance, and the periodic check is required. In addition to displaying that there is, the maintenance method is displayed by specifying the display with the touch key, so that the maintenance time has come easily and the method can be done without switching the screen by the operator such as maintenance staff Can be obtained.

As described above, according to the present invention, an operator, such as a maintenance person, can easily and quickly perform a trouble location,
And information on how to deal with failures and maintenance, etc., can be obtained, so that it is possible to easily and reliably obtain information on the state of the industrial plant controller, recovery work in the event of an abnormality, maintenance time, and a method thereof. ,
The operation can be reduced.

Embodiment 2 FIG. By providing a voltage level monitoring function in the system monitoring device 1, it is also possible to notify an operator such as a maintenance person of replacement time of a memory backup battery or the like. In the voltage level monitoring function, the minimum operating voltage considering the allowable error is input to the comparator as a reference voltage, and the output voltage of the battery etc. is input as a signal to this, so that the voltage output of the battery etc. has dropped It is possible to detect that.

FIG. 5 shows an example of a maintenance screen for a device such as a battery which needs to be replaced due to its life. By transmitting a voltage drop detection signal and a screen display switching signal detected in the system monitoring device 1 to the system display 5, a screen as shown in FIG. 5 is displayed on the system display 5,
Notify the operator that the voltage output of the battery etc. has dropped. In addition, by setting a button with a touch key on the switched display screen and touching it,
The replacement method of the battery or the like is displayed on the system display 5, and the operator can easily know the replacement method of the battery or the like.

As described above, due to the life of the battery or the like, when a device requiring replacement is in a state requiring replacement, the screen is switched to a screen warning that the replacement is required, and the replacement time is reached. Is displayed, and when the display is specified with the touch keys, the replacement method is displayed so that the replacement is easily performed without switching the screen by the operator such as maintenance staff. Try to get a replacement.

Embodiment 3 In accordance with the functions of the above embodiment, the troubleshooting display on the system display 5 and the message input associated with the display of the replacement method of the battery and the like can be input, thereby displaying the troubleshooting display screen and the replacement method of the battery and the like. A simple message such as the storage location of the maintenance item can be displayed on the screen.

FIG. 6 shows an example in which a character input device 18 such as a programming panel or a personal computer is added to the configuration shown in FIG. With the character input device 18 connected to the system,
Each device of the industrial plant controller is registered in advance, a simple message input screen is prepared for this device, and an environment in which an operator such as a maintenance person can input a message is provided. The data input by the operator using the character input device 18 is transmitted to the system monitoring device 1 via the CPU unit 2 of the industrial plant controller, and is associated with a signal indicating a method of restoring a device or a signal indicating a method of replacing a maintenance part. And store it as a message. By this, when switching to the recovery method display screen at the time of failure occurrence, the message input by the operator is also sent to the system display 5 to display the simple message such as the storage location of the maintenance item. It is possible to do. With this display,
By knowing the storage location of the maintenance item that is stored only by a specific person in charge, if the device needs to be replaced, the person who does not store the storage location of the maintenance item can easily exchange the device.

Embodiment 4 FIG. When a minor failure occurs in an industrial plant controller, the failure often triggers a severe failure or is a precursor to a severe failure. For example, if the temperature rises due to a fan failure, the CPU goes down, the voltage effect due to a sudden load change after a single power supply failure, or the network stops due to frequent communication retries, there is almost no effect on plant operation. Regardless, since the failure is minor, recovery may be delayed, leading to a severe failure or a great effect on plant operation. Therefore, when a minor failure occurs, an operator who is in charge of maintenance or the like may be alerted to an item in which a major failure is expected to occur from the minor failure.

FIG. 7 is a view showing an example of a screen according to the fourth embodiment of the present invention. In the figure, a fan failure of the CPU unit is shown. Although the failure of the CPU unit fan itself does not directly affect the operation of the industrial plant controller directly, if this state continues, the CPU card may cause thermal runaway due to a rise in temperature. Therefore, when a minor failure occurs, the operator touches the "triggered major failure" button on the system display 5 in FIG. 7 and announces the major failure as shown in FIG. Ensure that industrial plant controllers do not lead to severe failures.

Embodiment 5 FIG. At the time of regular maintenance of a factory or the like, it is often desired to add about one input / output card to an industrial plant controller and perform simple remodeling at a customer site. However, it is not clear to the operator, such as a maintenance person who is skilled in ordinary maintenance, what to consider when adding a card. It is necessary to check with the manufacturer each time an input / output card is added, and it is often impossible to upgrade the level of operators. Therefore, by displaying the precautions and ideas when adding this card and indicating the recommended I / O card addition position using a simple algorithm, it is possible to assist the operator in charge in adding the I / O card easily. Can be.

FIG. 9 is a diagram showing a simple input / output card addition algorithm. By selecting the type of card to be added using the touch keys of the system display 5, reference is made to a device configuration set in advance in the system monitoring device 1, and confirmation of additional space, type of dirty / clean, Check restrictions on addresses, power supply capacity, etc., and determine whether addition is possible. Also, by displaying the process of this algorithm on the system display 5, the maintenance staff can obtain the knowledge about the addition of the card, so that the judgment at the time of adding the input / output card can be made.

As described above, in simple remodeling, 1
When about two or more I / O cards are added, the industrial plant controller needs remodeling by a highly skilled maintenance person or a manufacturer.
By announcing the precautions when adding this card and displaying the recommended I / O card addition method,
If a very small function was added, the maintenance staff could handle it.

Embodiment 6 FIG. An operator, such as a maintenance person in a factory that controls plant equipment by the industrial plant controller, needs to have detailed knowledge of the industrial plant controller used, but in reality, this is not always the case. Also, there are very few cases where instruction manuals are installed in the electrical room in the factory, so even when referring to a small device, it is necessary to go to the office or other place where the instruction manual is installed. Burdens the staff. In order to assist the operator in reducing the burden and improving the knowledge, the system display 5 can display a brief description of each device constituting the industrial plant controller and a document number of an operation manual.

FIG. 10 shows an example of a simplified explanation screen of the components on the system display 5. By specifying each component displayed on the screen with the touch key, a brief description of the specified device and the document number of the instruction manual of the device are displayed to help the operator improve knowledge. Do.

In this manner, by designating each device display portion constituting the industrial plant controller with the touch keys, a brief description of the device and the instruction manual document number are displayed, thereby enabling maintenance personnel and the like. Operator's H / W knowledge on the industrial plant controller can be improved.

Embodiment 7 When a failure occurs in an industrial plant controller, a secondary failure may be induced by the first failure. In such a case, the failure display screen shown in the first embodiment is displayed only for the first major failure cause. FIG. 11 shows an example of a mechanism that holds only the first cause at the time of occurrence of a major failure in the system status storage unit 10 inside the system monitoring device 1. As shown in FIG. 11, by retaining the failure factor that occurred first, it is differentiated from the subsequent major failure factor, and a failure display screen for the first major failure factor is displayed on the system display 5. It is something to do.

According to the above display, an operator such as a maintenance person performs a recovery procedure. When the first cause of the failure is recovered, the maintenance of the cause of the failure is released. The operator can easily determine the cause of the failure that occurred first and the cause of the failure that occurred secondarily, and can easily perform the recovery.

Embodiment 8 FIG. In the third embodiment, on the failure recovery display of the system display 5 or the maintenance item replacement method display screen, replacement and recovery can be more easily performed by a simple message input by an operator such as a maintenance person. Although the system display device has been described, the information input to one controller is transmitted by transmitting a message input by the operator to the industrial plant controller connected to the same network via the control network. Can be used by other controllers, and centralized management of information becomes possible.

FIG. 12 shows a network connection example of an industrial plant controller. As shown in FIG. 12, a programming panel, an I / F unit 6 such as a network,
An input device 18 such as a personal computer is connected to the system monitoring device 1. I / F from this input device to network etc.
The operator operates the unit 6 to transmit a message input by an operator such as a maintenance person to a specific or all stations connected to the network.

By this transmission operation, the system monitoring device 1
The message stored in is sent to the designated station, ie, each industrial plant controller connected to the network. In the industrial plant controller receiving this message,
The message is updated by sending the received data to the system monitoring device 1. As a result, the operator does not need to repeatedly input comments having the same content, and can centralize and centralize information by a simple operation.

As described above, a maintenance item storage location recorded by an operator such as a maintenance person is broadcast-transmitted to a plurality of industrial plant controllers connected to the network via the network, whereby the maintenance item is transmitted. It is now possible to centrally manage storage location settings and maintenance work.

[0045]

According to the industrial plant controller according to the first aspect of the present invention, a system monitoring device having means for inputting a system state signal and storing the signal, and a display transmitted from the system monitoring device are provided. A system display for switching to a failure display screen based on a screen switching signal, a failure display signal, and a recovery message display signal, wherein the display screen is displayed from the system monitoring device to the system display after a preset time has elapsed. Since a means for outputting a switching signal and a restoration message display signal is provided, it is possible to easily notify that the maintenance time has come and the method thereof without an operator such as a maintenance person switching the screen.

According to the industrial plant controller according to the second aspect of the present invention, the means for detecting that the voltage output of the battery or the like has dropped and transmitting the voltage drop detection signal and the display screen switching signal to the system display. Is provided, it is possible to easily obtain the necessity of replacement and a method of replacing it without switching the screen by an operator such as a maintenance person.

According to the industrial plant controller of the third aspect of the present invention, a means for inputting a message is provided so that a message such as a storage location of the maintenance item can be displayed on the system display. When the equipment needs to be replaced, even a person who does not remember the storage location of the maintenance item can easily replace the equipment.

According to the industrial plant controller according to the fourth aspect of the present invention, the input message is transmitted to a plurality of other industrial plant controllers via the network.
Maintenance work can be centrally managed.

According to the industrial plant controller according to the fifth aspect of the present invention, when a minor failure occurs, a function for displaying a major failure that may be secondary induced by the minor failure is displayed in the system. Since the indicator is provided, it is possible to prevent the industrial plant controller from causing a serious failure.

According to the industrial plant controller of the sixth aspect of the present invention, when it is necessary to add an input / output card, a function of displaying a recommended position of the additional card together with notes on the addition of the input / output card is provided on the system display. The operator in charge can easily add an I / O card.

According to the industrial plant controller according to claim 7 of the present invention, the function of displaying the description of each device constituting the industrial plant controller and the document number of the instruction manual is provided in the system display. In addition, it is possible to improve the H / W knowledge of an operator such as a maintenance person for the industrial plant controller.

According to the industrial plant controller according to the eighth aspect of the present invention, the system display has a function of displaying a failure display screen for the cause of a major failure that has occurred first, so that the operator first generates the failure display screen. The cause of the failure and the cause of the secondary failure can be easily determined, and the recovery can be easily performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an industrial plant controller according to Embodiment 1 of the present invention.

FIG. 2 is a diagram showing an example of a display screen of the industrial plant controller according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing an industrial plant controller according to Embodiment 1 of the present invention.

FIG. 4 is a diagram showing an example of a display screen of the industrial plant controller according to the first embodiment of the present invention.

FIG. 5 is a diagram showing an example of a display screen of an industrial plant controller according to Embodiment 2 of the present invention.

FIG. 6 is a block diagram showing an industrial plant controller according to Embodiment 3 of the present invention.

FIG. 7 is a diagram showing an example of a display screen of an industrial plant controller according to Embodiment 4 of the present invention.

FIG. 8 is a diagram showing an example of a display screen of an industrial plant controller according to Embodiment 4 of the present invention.

FIG. 9 is an algorithm showing an operation of the industrial plant controller according to the fifth embodiment of the present invention.

FIG. 10 is a diagram showing an example of a display screen of an industrial plant controller according to Embodiment 6 of the present invention.

FIG. 11 is a mechanical diagram showing an industrial plant controller according to Embodiment 7 of the present invention.

FIG. 12 is a network diagram showing an industrial plant controller according to Embodiment 8 of the present invention.

FIG. 13 is a diagram showing a display example on a conventional system display.

[Explanation of symbols]

 1 System monitoring device, 5 System display.

Continued on the front page (72) Fumihiko Nakamura 2-6-1, Otemachi, Chiyoda-ku, Tokyo Inside Mitsubishi Electric Engineering Co., Ltd. (72) Toshiyuki Yasutomi 2-5-2, Otemachi, Chiyoda-ku, Tokyo 3 F term in Ryo Denki Engineering Co., Ltd. (reference) 5H223 AA01 CC08 DD03 EE04 EE13 EE17

Claims (8)

[Claims] 1. A system monitoring device having means for inputting a system status signal and storing the signal, based on a display screen switching signal, a failure display signal, and a recovery message display signal transmitted from the system monitoring device. An industrial plant controller comprising a system display for switching to a failure display screen, wherein a display screen switching signal and a recovery message display signal are output from the system monitoring device to the system display after a preset time has elapsed. An industrial plant controller comprising means. 2. The industrial system according to claim 1, further comprising means for detecting a drop in the voltage output of the battery or the like and transmitting a voltage drop detection signal and a display screen switching signal to a system display. For plant controller. 3. The system according to claim 1, further comprising means for inputting the message so that a message indicating a storage location of the maintenance item or the like can be displayed on a system display. Industrial plant controller. 4. The industrial plant controller according to claim 3, wherein the input message is transmitted to another plurality of industrial plant controllers via a network. 5. The system display device according to claim 1, wherein when a minor failure occurs, the system display has a function of displaying a severe failure that may be secondarily induced by the minor failure. The industrial plant controller according to any one of claims 1 to 4. 6. The system display device according to claim 1, wherein when an input / output card needs to be added, the system display has a function of displaying a recommended position of the additional card together with precautions at the time of addition. Item 6. The industrial plant controller according to any one of items 5. 7. The system display device according to claim 1, wherein a function of displaying a description of each device constituting the industrial plant controller and a document number of an operation manual is provided on the system display. Item 2. The industrial plant controller according to item 1. 8. The industrial system according to claim 1, wherein the system display has a function of displaying a failure display screen for the cause of the first major failure. Plant controller.