JP3211499B2 - Processing method of production equipment information - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of processing production equipment information, for example, capable of displaying the operating state of a production equipment in real time.

[0002]

2. Description of the Related Art At present, for example, in a car manufacturing plant,
We manufacture cars using many production machines.
Since these production apparatuses constitute a line, the occurrence of a failure in one of the production facilities may lead to a line stoppage. For this reason, a monitor device for grasping the operation state of the production equipment is provided at a key point in the factory for the purpose of preventive maintenance.

[0003] Since this monitor device can display various displays, at present, not only the operation state of the device but also a failure state of a very small part has been displayed.

[0004]

However, in such a conventional monitor device, it is necessary to collect information on equipment from a very large number of production machines in accordance with an increase in demand for display types. Therefore, not only is it very time-consuming to collect this information,
There is a problem in that it takes time to generate data for displaying a failure or operating state based on the collected information.

[0005] For example, if the information that needs to be collected is
If there are 10,000 points, 0.1 msec to collect this one information
If it is necessary, it takes about one second to collect necessary information, and it is necessary to perform a logical operation on the collected information. Therefore, it takes several more seconds before the result can be displayed. Therefore, the display interval of the monitor device is 7.8 seconds, so that even if a serious trouble that needs to be notified urgently occurs, it is impossible to instantly display the display. Would. That is, it is difficult to see the information that one wants to know as soon as possible, or the information that one wants to monitor in real time is displayed with a delay from the reality, so that the original function of the monitor device cannot be effectively fulfilled. . This is a very serious problem in view of an increase in input information in the future.

[0006] The present invention has been made in view of such a conventional problem, and a part of a logical operation that is extremely overloaded is shared by a control device of a production device, thereby reducing the number of the monitor device itself. An object of the present invention is to provide a method of processing production equipment information capable of reducing a load and consequently reducing a display interval.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a computer provided for each production facility, and status information on each of the production facilities output from each of the computers. Collect
A workstation constituted by a processing method of the production facilities information that applies to production equipment monitoring device for processing name and the information of the status information
Read the logical operation table associated with the logic of
Include the name of the status information and the
The computer and the location where the information is stored
Referring to the linked logical table,
Which state information the station should collect
Creates an allocation table that indicates whether to assign to the computer
And, based on the allocation table,
A program for sharing and collecting
Generated for each computer, and the generated program
To the computer, and based on the program, the computer
The computer performs a logical operation, and the workstation totals only the operation result of the logical operation by each computer.

[0008]

According to the present invention constructed as described above, each of the components
When performing logical operations on computers, the logical table
Create an allocation table based on the
Since the program is created based on the table, each
Set the processing details in the computer in advance
It is not necessary, and depending on the operation status of the production equipment,
Data and programs are allocated appropriately,
By performing arithmetic processing, the state of the production equipment can be displayed. Soshi
The state information to be collected by the workstation is collected and shared by each computer, and the logical operation to be performed on the state information is also performed by each computer. Work station
In this case, only the result of the logical operation performed in each computer is counted. For this reason, the amount of logical operation processing to be performed in the workstation is significantly reduced, so that the processing load on the workstation is significantly reduced, and a real-time state display of the production equipment can be performed.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration block diagram of an information processing apparatus as a workstation that executes a method of processing production equipment information according to the present invention. This information processing apparatus is capable of performing information processing between different models, and is capable of supporting a so-called multi-vendor. Each of the application kits 1 and 2 is a program in which only the execution element procedure is defined without including the judgment processing and the memory holding processing, and operates using only the functions provided by the SKI 3 without directly referring to the external functions. Is what you can do. The SKI 3 has a function of sequentially connecting the kits 1 and 2 in accordance with a designated processing procedure, and executing a series of programs obtained as a result of the connection without depending on hardware or OS. . The API 6 controls information exchange between existing software and a kit, and enables interconnection with an apparatus to which the present invention is applied without changing existing equipment. Next, BASE4 is means for collectively managing and executing temporary storage and processing of information common to each application. This BASE4 is S
The data of each of the kits 1 and 2 generated by the KI 3 are combined to control the start instruction of the kits 1 and 2 and the synchronization between the kits. The BASE 4 includes a device driver (D / D) 41 that manages the startup execution of the terminal 8 and the connected various devices 9 and a graphical user.
An interface (GUI) 42 is provided.

[0010] OSI5 is kits 1 and 2 and BASE4
The is intended to supply a set of functions for complete disconnection operation from Haadowea and OS7, referring to underlying OS7 command structure of each hardware device in order to convert such a function to be used on the device It has an OS library. That is, the OS library is a table that associates the instruction form of each OS 7 with the corresponding instruction form on the device.

FIG. 2 shows a specific internal configuration of each component of the information processing apparatus shown in FIG. 1, and a PLC ( programmable logic controller) is used as a device.
B ) assumes a CRT as a terminal.

As is apparent from this figure, kit 1
Has a data request function, a data processing function, and a function of notifying the processing result. SKI3 is
A function to start each kit, a function to output a data request function to BASE4 in response to a data request from the kit, B
It has a function of outputting data from the ASE 4 to the kit as a data notification function and a function of using a processing result of the kit as a screen output function.

BASE 4 stores a function of logicalizing communication data subjected to signal processing from a logical table or signal processing, and stores logical data, and stores the logical data in a database.
A function for outputting a data acquisition completion notification, a data transfer function for returning data retrieved from the database to the SKI3 based on a data request function from the SKI3, and a SKI3
A data storage function for storing a screen output function output from the PC, a display screen data output function for outputting data from a screen information database to the OSI 5 based on the stored data, and a logical operation of the logicalized data Is assigned to each PLC.

The OSI 5 has a function of generating a communication standard function and a function of generating a screen standard function. The OS 7 has a function of generating a communication function and a function of generating a screen display function. Note that this PLC
Functions as a computer in the present invention.

FIG. 3 shows a function in which the processing method of the present invention is actually processed. This part corresponds to the logical operation distribution function 30 of BASE4.

The logical table and name table 20 in the figure are provided with a logical table as illustrated in FIG. The “Name” column of this table indicates the name of the signal, and the meaning of the signal is shown in the “Comment” column. For example, the signal of Er-1 indicates that the facility A has an overrun,
The Er-3 signal indicates that the facility A has been overloaded. The column “PLC NO” indicates the number of the PLC that should handle the signal. And
The “address” column indicates the address of the memory where the signal is stored. Therefore, the Er-1 signal is handled by the PLC No. 8, and this signal is input / output to / from the address 100.

The logical operation table 22 includes a logical operation table as illustrated in FIG. This logical operation table is a table showing what logic is applied to a target signal and what signal name is used as the result. For example, the illustrated logical operation table indicates that the operation result of the OR logic of the signals Er-1 to Er-3 is a signal of Er-A.

The logical operation interpreting process 24 performs an interpreting process of the logical operation with reference to the logical table and the logical operation table shown in FIG. 4 and FIG. The interpretation of this logical operation is performed as shown in the flowchart of FIG.

First, the logical operation table is read (S1).
0), the assignment of the target PLC is read from the logical table (S11). Next, assign the read PLC
Creating an allocation table shown in FIG. 7 on the basis of only (S12). The allocation table of FIG. 7 means that, for example, the eighth target PLC calculates the OR logic of the signals at addresses 100 and 102.

Part 2 having a function of generating a program
Reference numeral 5 denotes a part for performing processing as shown in the flowchart of FIG. 8 to automatically generate a ladder program.

First, the allocation table shown in FIG. 7 is read (S20), and a ladder program as shown in FIG. 9 is automatically generated based on this table (S2).
1) The generated ladder program is sent to an external PLC by the communication processing function 26. The PLC receiving the ladder program inserts the ladder program into the ladder program of the PLC itself (S22),
Register the trigger signal in the above-mentioned allocation table (S2
3). In this example, the trigger of the PLC 8 is 110
In addition, the trigger of the PLC 9 is registered at 90. After this registration is performed,
State information relating to C itself will be processed in this PLC.

The table updating section 27 updates the table. The operation of this section is performed as shown in the flowchart of FIG. Since the logical operation table has been considerably rewritten when the logical operation interpretation processing is performed, it is necessary to replace the logical operation table with the rewritten table.

First, the corresponding logical operation table, that is, the logical operation table shown in FIG. 5 is deleted, and ER-10 and ER-11 newly created at the time of generating the program are deleted.
And then add this newly created E to the logical table.
Add R-10 and ER-11 (S30-S3
3).

By performing such processing, the monitor device extracts all the signals listed in the name column of the logical table as shown in FIG. 11 one by one and performs only a small logical operation. The state of the equipment can be grasped, and a monitor display near real time can be performed. The present invention is summarized as follows.

That is, conventionally, all the signals listed in the logical table of FIG. 4 are collected, and all the logical operations listed in the logical operation table shown in FIG. Since the process of displaying the result on the monitor is performed by the monitor device itself, it took a considerable amount of time to display the signal. However, according to the processing method of the present invention, the signal that must be collected based on the logical table Although the logical operation with the largest load is dispersed in the program of each PLC, the processing load as a whole increases slightly, but the load that the monitor device itself has to process is small. As a result, the display can be displayed in real time.

[0026]

As described above, according to the present invention, each component
When performing logical operations on computers,
Create an allocation table based on the
Program is based on the attached table
In advance, set the content of arithmetic processing in each computer in advance.
It is not necessary to keep
Computers, programs are properly allocated, more efficient
By performing a basic calculation process, the state of the production equipment can be displayed.
In addition, the load of the logical operation is divided among the computers, and the workstation only has to perform the logical operation on the result of the logical operation by these computers. Calculation load can be considerably reduced, and real-time status display of production equipment can be performed.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a workstation on which a method of the present invention is performed.

FIG. 2 is a diagram showing a specific internal configuration of each component of the apparatus shown in FIG.

FIG. 3 is a diagram showing a logical operation distribution function in which the method of the present invention is actually processed.

FIG. 4 is a diagram illustrating an example of a logical table illustrated in FIG. 3;

FIG. 5 is a diagram showing an example of a logical operation table shown in FIG. 3;

FIG. 6 is a flowchart showing a logical operation interpretation process shown in FIG. 3;

FIG. 7 is a diagram showing an example of an allocation table used in generating the program shown in FIG. 3;

FIG. 8 is a flowchart showing a process of generating the program shown in FIG. 3;

FIG. 9 is a diagram illustrating an example of a ladder program generated in a program generation process.

FIG. 10 is a flowchart showing a process of updating the table shown in FIG. 3;

FIG. 11 is a diagram illustrating an example of a logical table after an update process has been performed;

FIG. 12 is a diagram illustrating an example of a logical operation table after an update process has been performed;

Claims (1)

(57) [Claims] 1. A computer provided for each production facility, and status information about the production facility output from each of the computers is collected.
A workstation for collecting, constituted by a processing method of the production facilities information that applies to production equipment monitoring device, and logic for processing the name and information of the state information
Reads the logical operation table associated with the name of the state information and the computer that should handle the information.
Data is associated with the location where the information is stored
The state table to be collected by the workstation is referred to by referring to the logical table.
Allocation table showing which computers
A status table based on the allocation table.
A computer program for collecting
And sends the generated program to each computer, and performs a logical operation on the computer based on the program.
Calculation was subjected to the treatment method of production equipment information only calculation result of the logical operation by each of the computer the workstation, characterized in that the aggregate.