JPH07200037A - Production control equipment - Google Patents

Abstract

(57) [Summary] [Purpose] In a production line consisting of multiple production processes, one production management device is arranged for each production process, and any production management device can provide facility information for all production processes or desired facility information. It is to provide a production control device capable of selectively displaying. [Configuration] A monitor register information storage unit 17 is provided as a global area so as to share data in the PLC 1 used for the production control device, and all the facility information of each stage is stored in the monitor register information storage unit 17, and a display unit is provided. The screen selected by the monitor 37 in 3 and the facility information corresponding to the selected screen are combined by the screen information processing unit 33 and displayed on the monitor unit 37.

Description

Detailed Description of the Invention

[0001]

The present invention is installed in each production process,
The present invention relates to a production management device that displays facility information of the entire production process or desired facility information with an arbitrary production management device.

[0002]

2. Description of the Related Art Conventionally, production in a factory is often carried out consistently from the loading of materials before processing to the unloading of finished parts after processing. In a production line that consistently produces these parts, a single piece of production equipment is called a cell, some of these cells are combined into one production process, this one production process is called a stage, and several stages are combined. Is configured. A programmable controller (hereinafter referred to as PLC) is installed in each stage and directly controls each stage. The control of the production line, which is a combination of these stages, is centrally controlled by the main control operation panel.For example, if the production line fails and is restarted or the failure location is checked, the main control operation panel is used. Without this, the production line could not be restarted or the fault could not be confirmed. In addition, the information to be centrally displayed on this main control operation panel includes tool exchange of production equipment for each work, confirmation and restoration of workpiece machining accuracy, tool damage status confirmation and recovery, status confirmation and recovery when a failure occurs. is there.

However, in order to display the information in a more concentrated manner on the main control operation panel, an operator must move between the stage and the main control operation panel to check each time a problem occurs, and Due to the traveling time, it was a cause of lowering the operating rate of the entire production facility.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a production control device for displaying equipment information of all stages or equipment information of a desired stage.

[0005]

The present invention for achieving the above object provides a production management apparatus which is installed for each production process, controls the production process, and is connected by a plurality of networks. Information sharing means for storing information so that the information can be shared, screen display means for displaying equipment information of the production process and an external input terminal, and equipment information and a screen required for a screen externally input by the screen display means And screen display information, which is information for displaying, is combined with the screen display means for display by the screen display means.

[0006]

The production management apparatus of the present invention is provided with an information sharing means as a global area so that the register in the control apparatus can share the equipment information of the production process controlled by all the control apparatuses, and the information is shared by the information sharing means. Stores equipment information for all production processes. Further, the screen information processing means combines the equipment information necessary for the screen display and the screen display information for displaying the screen according to the screen selected from the outside by the screen display means, and the combined screen is displayed by the screen display means. Is displayed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A production control apparatus according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

The production control apparatus of the present invention includes a stage 5 which is a production process as shown in FIG. 1, a PLC 1 which is a control device for controlling the stage 5, facility information of the entire stage and a desired stage 5. There is a display device 3 which is an information display means for displaying the equipment information, and a plurality of these are connected. As shown in the conventional example, this equipment information includes the status information of the tools of the production equipment and the status confirmation and restoration at the time of equipment failure. And stage 5
Is, for example, welding, processing, or transportation. In addition, PLC
1, a remote I / O unit 19 that directly controls the stage 5 as shown in FIG. 2 and reads equipment information from the stage 5,
A sequence circuit unit 21 that controls the stage 5 according to a predetermined sequence according to the equipment information from the remote I / O unit 19, and equipment information from the sequence circuit 21 connected to another PLC and equipment information of all stages are displayed. A monitor register information storage unit 17 which is an information sharing means for storing, and a screen control parameter storage unit 15 for storing a parameter for identifying a screen related to the facility information from the monitor register information storage unit 17.
And a screen control unit 13 that reads a parameter from the screen control parameter storage unit 15 according to the designation of the screen from the display device 3 and selects and reads equipment information from the monitor register information storage unit 17 according to this parameter; There is a PLC communication processing unit 11 that transmits and receives facility information and parameters from the screen control unit 13. Then, on the display device 3, a screen display information storage unit 39 storing screen display information to be combined with the facility information as shown in FIG. 2 and displayed, and input or screen display of information from the outside. The monitor unit 37 and this monitor unit 37
A screen information parameter storage unit 35 for storing parameters for identifying a screen to be displayed on the screen, and external information input from the monitor unit 37 are processed to generate necessary equipment information.
There is a screen information processing unit 33 that reads from C1 and combines the facility information and screen display information, and a communication processing unit 31 that transmits and receives facility information and the like.

The production control device thus configured operates as follows.

The equipment information generated in the stage 5 is transmitted to the remote I / O unit 19 and then further transmitted to the sequence circuit unit 21 to control the stage according to the sequence of this circuit. The equipment information from the sequence circuit unit 21 is set so that the registers in the PLC 1 are shared as a monitor register information storage unit 17 which is a common global area so that the PLC 1 can share the equipment information, and the monitor register information storage unit 17 stores the facility information at regular intervals. Write equipment information. That is, the equipment information of the stages connected to each PLC1 is stored in the register of each PLC1, the equipment information of all the stages is read at regular intervals, and the latest equipment information is stored in the monitor register information storage unit 17 described above. Since it is always stored, the equipment information of the stages controlled by all the PLC1 can be displayed by one PLC1, and the equipment information of any stage can be displayed.

Then, the screen control unit 13 controls the screen control parameter storage unit 1 according to the information of the screen displayed on the display device 3.
Equipment information necessary for the screen displayed on the display device 3 is read from the monitor register information storage unit 17 in accordance with the parameter of No. 5. The read equipment information is transmitted to the display device 3 by the PLC communication processing unit 11.

Further, in the screen information processing unit 33, a screen to be displayed on the monitor unit 37 from the screen information display storage unit 39 according to the parameters of the screen information parameter storage unit 35 based on the screen display input from the monitor unit 37. The display information is read, the screen display information and the facility information received by the display communication processing unit 31 are combined, and the monitor unit 37
To display the screen.

The screens displayed on the monitor unit 37 are, for example, those shown in FIGS. 3, 4 and 5, and FIG. 3 shows the equipment information for each cell in each stage selected from the main screen. It is a sub-screen for selecting the display of the usage state, and the usage state of the tool of the desired cell in each stage can be selected and displayed on this screen. Figure 4
The usage state of the tool when L15 of the cell of stage 5 is selected is displayed. FIG. 5 is a screen in which only desired tools are further displayed from the displayed tools. In addition, the life of the tool can be set by inputting the ten keys displayed at this time.

FIG. 6 is a flow chart for explaining the control of the production control system of the present invention. The facility information of the stage to be displayed is selected on the monitor unit 37 and the screen number is input (S1). Next, the parameters of the screen selected by the screen information processing unit 33 are searched (S2). Then, the screen information processing unit 33 interprets the parameters and reads the corresponding screen display information from the screen display information storage unit (S3).
Furthermore, the equipment information necessary for the screen to be displayed selected by the monitor unit 37 is read from the monitor register information storage unit (S4). Finally, the screen information processing unit combines the facility information and the screen display information, and the monitor unit 37 displays the combined information (S5).

As described above, the production management apparatus of the present invention is installed for each stage, the facility information is stored in the monitor register information storage unit in common, and the screen information processing unit follows the screen selected by the monitor unit. Since the equipment information and the screen display information are combined and displayed, the equipment information of the entire stage or the equipment information of a desired stage can be selected and displayed.

[0016]

As described above, according to the present invention, by installing the present apparatus for each stage, the equipment information of each stage is stored in the monitor register information storage unit as a common global area, which is required. Depending on the screen display information and equipment information selected on the monitor section are combined and displayed by the screen information processing section, the equipment information of the entire stage or the equipment information of the desired stage can be displayed. Moreover, since the worker does not have to move between the stage and the main control operation panel, it is possible to improve the operation rate of the entire production facility.

[Brief description of drawings]

FIG. 1 is a drawing for explaining a configuration of a production management apparatus that is an embodiment of the present invention.

FIG. 2 is a drawing for explaining an internal configuration of a production management apparatus that is an embodiment of the present invention.

FIG. 3 is a diagram for explaining an example of data display by the production management apparatus that is an embodiment of the present invention.

FIG. 4 is a diagram for explaining an example of data display by the production management apparatus that is an embodiment of the present invention.

FIG. 5 is a diagram for explaining an example of data display by the production management apparatus according to the embodiment of the present invention.

FIG. 6 is a flow chart for explaining control of the production management apparatus that is an embodiment of the present invention.

[Explanation of symbols]

1 ... PLC (programmable controller), 3 ... Display device, 5 ... Stage, 11
... PLC communication processing unit, 13 ... Screen control unit, 15 ... Screen control parameter storage unit, 17 ...
Monitor register information storage unit, 19 ... remote I / O unit,
21 ... Sequence circuit unit, 31 ... Display communication processing unit, 33 ... Screen information processing unit, 35 ... Screen information parameter storage unit, 37 ...
Monitor unit, 39 ... Screen display information storage unit.

Claims (1)

[Claims] 1. A production management device which is installed for each production process, controls the production process, and is connected to a plurality of networks by an information sharing means for storing facility information of the production process so as to be shared, and the production process. Screen display means that is the external input terminal and displays the equipment information of, and the screen display information that is the information for displaying the necessary equipment information and the screen on the screen externally input by the screen display means. And a screen information processing unit that is combined for display by means.