JP3203927B2 - Production management device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates, is installed in each production process
The present invention also relates to a production management device capable of displaying equipment information of the entire production process or desired equipment information with an arbitrary production management device.

[0002]

2. Description of the Related Art Conventionally, production in a factory is often performed 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 production facility is called a cell, a number of these cells are combined into one production process, and this one production process is called a stage. It is configured. Each stage is provided with a programmable controller (hereinafter, referred to as a PLC) 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, when the production line is stopped due to a failure, the main control operation panel is used to restart or check the failure location. Otherwise, the production line could not be restarted or the faulty location could not be confirmed. In addition, information to be centrally displayed by this main control operation panel includes tool change of production equipment for each work, confirmation and restoration of work processing accuracy, confirmation and restoration of tool breakage, confirmation and restoration of failure status, etc. is there.

However, displaying the information in a concentrated manner on the main control operation panel requires that an operator move between the stage and the main control operation panel every time a trouble occurs and check the information. The travel time caused a reduction in the operation rate of the entire production facility.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a production management apparatus capable of displaying equipment information of all stages or equipment information of a desired stage.

[0005]

The present invention SUMMARY OF THE INVENTION To achieve the above object, respectively installed in each production step, is directly connected to each other by a network, the production control device for controlling the corresponding production processes, self Production controlled by
Along with the equipment information of
And information sharing means for <br/> store facility information for all other production obtained by contacting received, stored in the information sharing means
The facility information for each production step are thereby selectively displaying a plurality of screens to be displayed in a predetermined format, and the screen display unit capable of inputting the selection information from the outside of the screen to be displayed, the image
Screen selection information input from outside through screen display means
Facility information and the selection needed to screen selected on the basis of
And a screen information processing means for generating a display screen by combining screen display information for displaying the selected screen, and outputting the generated screen to the screen display means.

[0006]

In the production management apparatus of the present invention, the information sharing means stores, as a global area, equipment information of all the production processes including the production process controlled by another production management device . Here, by another production management device,
Equipment information of production processes controlled by other production management devices
From each other. Screen information processing unit, facility information and a required screen selected based on an external input screen selection information through the screen display unit
A screen for display is generated by synthesizing screen display information for displaying the selected screen, and output to the screen display means.
The screen display means displays the synthesized display screen (a screen for displaying equipment information of each production process in a predetermined format ) on the display unit.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a production control apparatus according to an embodiment of the present invention.

FIG. 1 shows a production management apparatus according to the present invention .
Is installed on each stage 5 as a production process
A PLC 1 which is a control device for controlling the corresponding stage 5, and a display device 3 which displays equipment information of all the stages 5 or desired stage 5.
Having . Such a production management device is connected to a network.
A plurality of them are interconnected. Note that the facility information, as also shown in the conventional example, status information of the production facilities of tools
In addition, there is status confirmation and recovery at the time of equipment failure. Ma
In addition , the stage 5 includes, for example , a welding process, a processing process,
Process . As shown in FIG. 2, the PLC 1 directly controls the stage 5 and reads equipment information from the stage 5, and the remote I / O unit 19.
Sequence circuit 21 for controlling the stage 5 according to a predetermined sequence according to the equipment information from
When connected to another PLC, monitor register information storage section 17 as a facility information and stores facility information of all stages saved to <br/> Ru information sharing unit from the sequence circuit 21
When stores parameters for identifying screens that are relevant and equipment information from the monitor register information storage section 17
The screen control parameter storage unit 15 to be stored and the display device 3
A screen control unit 13 reads parameters from the screen control parameter storage unit 15 in accordance with designation of a screen from the user, selects and reads equipment information from the monitor register information storage unit 17 in accordance with the parameters , and a screen control unit 13 performing sending and receiving a facility information and parameters from the consisting of the communication processing unit 11 Metropolitan for PLC. Also ,
The display device 3 includes, as shown in FIG. 2, a screen display information storage unit 39 for storing and storing screen display information to be displayed in combination with the equipment information, and a screen for externally inputting information and displaying the screen. A monitor section 37 as display means, a screen information parameter storage section 35 for storing and storing parameters for identifying a screen to be displayed on the monitor section 37, and processing external input information inputted from the monitor section 37 , Loading equipment necessary information from the PLC1, and <br/> screen information processing unit 33 as the screen information processing unit for performing such synthesis of the facility information and the screen display information, a communication processing unit 31 that transmits and receives Guaranteed information Consists of

[0009] The production management apparatus thus configured operates as follows.

After the equipment information generated in the stage 5 is transmitted to the remote I / O unit 19, it is further transmitted to the sequence circuit unit 21 and the stage is controlled according to the sequence of this circuit. Registers in the PLC 1 are set as a monitor register information storage unit 17 which is a common global area so that the equipment information from the sequence circuit unit 21 can be shared by each PLC 1. Write the equipment information. That is, the equipment information of the stage connected to each PLC 1 is stored in the register of each PLC 1, the equipment information of all the stages is read at regular intervals, and the latest equipment information is stored in the aforementioned monitor register information storage unit 17. Since the information is always stored, the equipment information of the stages controlled by all the PLCs 1 can be displayed by one PLC 1, and the equipment information of an arbitrary stage can be displayed.

Then, the screen control section 13 stores the screen control parameter storage section 1 in accordance with the information of the screen displayed on the display device 3.
The 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 No. 5. The read equipment information is transmitted to the display device 3 by the PLC communication processing unit 11.

In the screen information processing section 33, a screen for displaying on the monitor section 37 from the screen information display storage section 39 in accordance with the parameters of the screen information parameter storage section 35 based on the screen display input from the monitor section 37. The display information is read, the screen display information and the equipment information received by the display communication processing section 31 are combined, and the monitor section 37 is combined.
To display the screen.

The screen displayed on the monitor unit 37 is, for example, a screen as shown in FIGS. 3, 4, and 5, and FIG. 3 is a view of a machining tool which is equipment information for each cell at each stage selected from the main screen. This is a child screen for selecting the display of the use state. With this screen, the use state of the tool of the desired cell in each stage can be selected and displayed. FIG.
The use 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 numeric keys displayed at this time.

FIG. 6 is a flowchart for explaining the control of the production management apparatus according to the present invention. The equipment information of the stage to be displayed is selected on the monitor 37, and the screen number is input (S1). Next, a search for the parameters of the screen selected by the screen information processing unit 33 is performed (S2). Then, the parameters are interpreted by the screen information processing section 33, and the corresponding screen display information is read from the screen display information storage section (S3).
Further, equipment information necessary for the display screen selected by the monitor unit 37 is read from the monitor register information storage unit (S4). Finally, the equipment information and the screen display information are combined by the screen information processing unit, and the monitor unit 37 displays the information based on the combined information (S5).

As described above, the production control apparatus of the present invention is installed for each stage, and the equipment information is stored in the monitor register information storage section in common, and the screen information processing section according to the screen selected by the monitor section. Since the information is displayed by synthesizing the equipment information and the screen display information, the equipment information of the entire stage or the equipment information of a desired stage can be selected and displayed.

[0016]

Effect of the Invention] According to the present invention As stated, in the production control device connected directly to each other by a network is installed in each production step, each and all of the raw
The equipment information of the production process is saved , and if necessary, the equipment information required for the selected screen and the screen display information are combined to generate and display the display screen, so that higher-level management is performed.
Equipment information of the entire production process or equipment information of the desired production process can be displayed on any production management device on the network without the device. Since it is not necessary to move to and from the control operation panel, a decrease in the operation rate of the entire production equipment due to the movement time is prevented, and the operation rate of the entire production equipment can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining a configuration of a production management device according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an internal configuration of a production management device according to an embodiment of the present invention.

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

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

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

FIG. 6 is a flowchart illustrating control of a production management device according to an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION 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: each screen information parameter storage unit, 37 ...
Monitor 39, screen display information storage.

Claims (1)

(57) [Claims] 1. A respectively installed in each production step, directly connected to each other by a network, the production control device for controlling the corresponding production process, together with the facility information of the production process itself to control, other production tubing
All other devices directly received from the
And information sharing means for storing facility information of the production process, while selectively displaying a plurality of screens to be displayed in the information sharing means conserved in the production process equipment information a predetermined format, the screen displayed Screen display means capable of externally inputting selection information, and screen selection input externally through the screen display means
Equipment information required for the screen selected based on the information and
Screen display information for displaying the selected screen combining to generate a screen for display, production control apparatus characterized by having a screen information processing unit for outputting to said image display means.