JP2009181173A - Machine control panel screen display system, and display device having sequential control processing function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a machine control panel screen display system and a display device having a sequential control processing function. <P>SOLUTION: The machine control panel display system, which creates and displays machine control panel display screen data, includes the display device 1 and a screen creation device 3. The screen creation device 3 includes a screen editor for associatively creating screen component data on screen components of a machine control panel and sequential programs to operate the respective screen components. The screen editor is software stored in a FROM 35. The display device 1 has a SRAM 12 for storing the screen data, and displays graphic data on a display 14 according to the screen data and executes the sequential programs associated with the respective screen components in the display screen. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device having a function for a user to add and change a machine operation panel screen, such as a display device provided in a numerical control device for controlling a machine tool or an industrial machine.

  A display device having a function for a user to add or change a machine operation panel screen is called a programmable display. The programmable display is an electronic operation device provided with a program memory for controlling a display screen, an operation switch, an interface with a host computer, and a screen and input. On the user side, the display screen of the programmable display, the operation input, the communication function with the host controller, and the like can be set and operated according to the purpose. This programmable display is used as a man-machine interface of a programmable logic controller (PLC) (referred to as a programmable machine controller (PMC) in FANUC Corporation).

When adding or changing a screen to a programmable display, as shown in FIG. 6, a screen creation device 601 or a sequence program creation device 602 composed of a computer device such as a personal computer different from the display device 603 is used as follows. The screen creation operations described in the operations 1 and 2 are executed as different operations (see Patent Document 1).
Work 1: Creation and editing of screen data displayed on a display device in which screen parts such as buttons and lamps are arranged on the screen and input / output signals (addresses) of the screen parts are set.
Task 2: Creation and editing of a sequence program (also referred to as a ladder program) that is executed by a programmable logic controller necessary for screen operation according to the input / output signals set for the screen components in Task 1. In order to create a sequence program for a screen component, it is necessary to perform an operation in the sequence program creation device 602.

As shown in FIG. 6, the sequence data for the screen data of the work 1 and the screen parts of the work 2 created and edited are the display device 603 for performing screen display and the PLC device having the function of PLC. 604 is transferred to each device and executed.
The display device 603 stores the screen data transferred from the screen creation device 601 (603a), performs processing for displaying parts on the operation panel screen and signal input / output processing (603b), and displays on the display device 603. The machine operation panel screen is displayed on the screen (603c).
The PLC device 604 stores the sequence program transferred from the sequence program creation device 602 (604a). The stored sequence program is a sequence program in which a machine control sequence and a machine operation panel screen sequence are integrated. Then, the PLC device 604 executes a sequence program (604b), and inputs / outputs signals to / from the input / output device (604c).

JP 2001-75790 A

The technique described in the background art has the following problems.
First, the sequence program necessary for the screen operation is created as a sequence program integrated with the sequence program for machine control. Therefore, if the screen is not displayed, the part of the sequence program that does not need to be executed is also executed by the PLC device.
Secondly, when a screen is newly added or changed, work for the sequence program of work 2 is required at the same time in addition to the creation and editing work of the screen data of work 1. For this reason, the work for creating and changing the screen has been complicated.

These will be further described with reference to FIG. When there are a screen A (701) displayed and a screen B (702) not displayed as screens displayed on the display device, the sequence program executed by the PLC is the machine control sequence 703a, the button 1 sequence 703b, The button 2 sequence 703c, the lamp 1 sequence 703d, and the lamp 2 sequence 703e are executed, and the processing of the lamp 2 on the screen B (702) that is not displayed on the display device is also executed.
Further, when changing the input / output signal of the button 2, etc., it is necessary to change the screen data in the screen creation device 601 and the sequence program in the sequence program creation device 602.

  Accordingly, an object of the present invention is to operate a screen in a display device having a function for a user to add or change a machine operation panel screen, such as a display device of a numerical control device that controls a machine such as a machine tool or an industrial machine. It is to simplify the efficient execution of the necessary sequence program and the creation of screen data for it.

  The invention according to claim 1 of the present application is a machine operation panel display system for generating and displaying machine operation panel display screen data. In the machine operation panel display system, screen part data creation means for creating screen part data of screen parts of the machine operation panel, Screen data of a machine operation panel comprising a sequence program creating means for creating a sequence program for operating parts, a sequence program created by the sequence program creating means, and a storage means for storing the sequence program as screen data A screen creation device for creating and storing a screen, a transfer means for transferring screen data created by the screen creation device to a display device, a display means for displaying a screen based on the transferred screen data, and a display Sequence program that executes the sequence program associated with each screen component in the screen Execution means, a machine operation panel display system having a.

The invention according to claim 2 is characterized in that the screen part data and the sequence program stored in association with each other add, edit, and delete for each screen part. Device.
According to a third aspect of the present invention, in the display device according to the first aspect, when the screen of the machine operation panel displayed on the display device is composed of a plurality of screens, only the screen component currently displayed is displayed. A display device having a sequence control processing function characterized by executing a sequence program.

  According to the present invention, it is possible to efficiently execute a sequence program (ladder program) necessary for the operation of the display screen, and the creation of screen data for that purpose can be simplified.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic block diagram showing an embodiment of the present invention. The display device 1 is a display device (programmable display device) having a sequence processing function, and includes a CPU 11, SRAM 12, FROM 13, display 14, touch switch 15, communication interface 16, and bus 17. The CPU 11 is connected to the SRAM 12, the FROM 13, the display 14, and the communication interface 16 via a bus 17. The SRAM 12 is a static RAM and is a temporary storage memory. The stored information can be retained by performing power backup. The SRAM 12 stores screen data (graphic data and sequence program) described later. The FROM 13 is a flash ROM and is a kind of memory that can electrically write and erase data. This FROM 13 does not lose its data even when the power is turned off. Then, the CPU 11 reads a system program stored in the FROM 13 via the bus 17 and controls the entire display device 1 according to the system program.

  The PLC device 2 includes a CPU 21, SRAM 22, FROM 23, a communication interface 24, and an I / O unit 25. The CPU 21 is connected to the SRAM 22, the FROM 23, the communication interface 24, and the I / O unit 25 via the bus 26.

  The SRAM 22 provides a temporary data storage location for the PLC device 2. The SRAM 22 can also hold the stored information by performing power backup. The SRAM 22 stores a machine control sequence program. The FROM 23 stores a management program for controlling the PLC device 2 and a machine control sequence program for controlling the machine 27 connected to the PLC device 2 via the I / O unit 25.

  The CPU 21 is a processor that controls the entire PLC device 2 based on the management program and executes the sequence program for machine control.

  The screen creation device 3 includes a CPU 31, an SRAM 32, a display 33, an external storage device IF 34, a FROM 35 storing a screen editor unit having a graphic editor unit and a sequence editor unit, and a screen data storage unit 36. The SRAM 32 can also hold the stored information by performing power backup. As the screen data storage unit 36, for example, a large-capacity hard disk can be used. The CPU 31 is connected to the SRAM 32, the display 33, the external storage device IF 34, the FROM 35, and the screen data storage unit 36 via the bus 37. The graphic editor of the screen editor unit stored in the FROM 35 has a function as a terminal for the display device 1 to input the operating status of the PLC device 2, various monitors for management such as work instructions, and setting values for the devices. It is screen software for making it prepare. The sequence editor stored in the FROM 35 is software for creating a sequence program necessary for the display device 1 to operate the screen components.

  In the screen editor unit which is software, the graphic data and the sequence program are configured as screen data associated with each other and stored in the screen data storage unit 36. The associated screen data will be described later.

  Table 1 shows the screen components stored in the screen data storage unit 36 and the contents of the screen data. The screen parts are parts constituting the machine operation panel, and specifically, lamps, buttons, meters, and the like. The data of each screen component is composed of the data shown in Table 1. Numbers 7 and 8 are the contents of data added according to the present invention.

  The display device 1 stores the screen data in the FROM 13 using the storage medium 38 that is connected to the external storage IF 34 and stores the screen data. As the storage medium 38, an appropriate means such as a flexible disk, a USB memory, or a flash memory can be adopted. Further, the means for storing the screen data in the SRAM 12 of the display device 1 is not limited to the storage medium 38 and may be via a communication line.

  FIG. 2 is a diagram for explaining data creation and execution of data for a screen according to the present invention. The screen data created or edited by the screen creation device 3 (see FIG. 1) and the sequence for the operation panel are displayed on the display device 1 (see FIG. 1) as screen data in which the graphics of the screen parts and the sequence program are in a data format. It is transferred and stored as screen data (1a). Then, processing for sequence control of the screen components and display of the screen components is executed (1b), and the machine operation panel is displayed on the screen (1c).

The PLC device 2 has a sequence program storage unit 2a for storing a sequence program for only a machine control sequence, executes the sequence program (2b), and an input / output device storage in which input / output signals are controlled based on the sequence program Part 2c.
FIG. 2 shows that the sequence program creation device does not need to create a sequence program for screen parts. Since the sequence program work (new addition or change work) for the screen parts in the sequence program creation device is no longer necessary, the display data of the parts and the sequence program can be added and edited at the same time for each screen part. As a result, the creation of the display screen is simplified. Note that the “unnecessary” mark in the sequence program creation device shown in FIG. 2 means that the sequence program work for the screen parts is unnecessary, and the sequence program work for machine control is the same as the prior art. To be done.

  Further, in the conventional technology described in the background art, even if a certain screen component is deleted, an operation error such as forgetting to delete the sequence program for the screen component has occurred. According to the present invention, it is possible to eliminate work errors that have occurred in the prior art.

FIG. 3 shows the structure of screen data in the present invention. As described above, as shown in FIG. 3, this screen data is created in a data format of a pair in which a button graphic and this button sequence program are associated with each other. The screen data structure of screen A includes a button 1 figure and a button 1 sequence program, a button 2 figure and a button 2 sequence program, and a lamp 1 figure and a lamp 1 sequence program. The screen data structure of screen B includes a button 2 graphic and a sequence program for button 2, and a lamp 2 graphic and a sequence program for lamp 2.
In the display device 1, according to this screen data, execution of the screen component sequence program and graphic display of only the screen A in the display of the screen A, and execution of graphic program and graphic display of the screen component only of the screen B in the display of the screen B Can be performed sequentially.

  FIG. 4 shows the execution of the sequence and the component display on the display device. By describing a sequence program necessary for the operation of the screen components in each screen component data such as buttons and lamps, the screen data associated with the display of the screen components and the sequence program is stored in the screen editor unit (FROM 35 in FIG. 1). (See the screen editor section).

  In FIG. 4, the sequence program is displayed overlaid on the figure. However, this is described for explanation, and this sequence program is not displayed on a display device having an actual sequence processing function. That is, FIG. 4 shows the sequence program and display necessary for operating this screen component in the respective screen component data such as buttons and lamps stored as screen data to be displayed when the display screen is created on the personal computer. This is a schematic representation of embedding data directly.

  With this screen data, the sequence program described in the screen parts and the display of the screen parts can be sequentially executed by the display device. Furthermore, if the screen is not displayed, a sequence program that does not need to be executed is not executed, so that efficient sequence execution can be performed. In addition, the sequence program required for the operation of each screen can be created / edited separately for each screen part data, and can be added / changed / deleted, and separated from the sequence program for machine control. This simplifies the screen data creation work on a computer device such as a personal computer.

FIG. 5 is a flowchart showing a sequence program execution process of the display device. Hereinafter, it demonstrates according to each step.
The screen data to be displayed is read from the storage medium (step S100), and the first screen component data is retrieved from the screen data of the screen to be displayed (step S101). Next, it is determined whether or not there is a sequence program in the screen component data. If there is, the process proceeds to step S103, and if not, the process proceeds to step S104.

  The execution of the sequence program, the display of screen parts, and the next screen part data are searched (steps S103 to S105). Then, it is determined whether or not there is the next screen component data (step S106). If there is, the process returns to step S102 to continue the process. (Step S107), if it occurs, return to Step S100 and continue the process. If not, return to Step S101 and continue the process.

It is a schematic block diagram of one embodiment of the present invention. It is a figure explaining the data creation for the screen by this invention, and execution of the data. It is a figure explaining the structure of the screen data in this invention. It is a figure explaining describing the sequence program required for screen component operation | movement in screen component data. It is a flowchart which shows the sequence program execution process of a display apparatus. In the prior art, it is a figure explaining that a screen data creation apparatus and a sequence program creation apparatus are required for addition / editing of a screen. It is a figure explaining that the sequence program part which execution is unnecessary in a prior art is also performed on PLC.

Explanation of symbols

1 Display device 11 CPU
12 SRAM
13 FROM
14 Display 15 Touch Switch 16 Communication Interface 17 Bus 2 PLC Device 21 CPU
22 SRAM
23 FROM
24 Communication Interface 25 I / O Unit 26 Bus 27 Machine 3 Screen Creation Device 31 CPU
32 SRAM
33 Display 34 Interface for external storage 35 FROM
36 Screen data storage unit 37 Bus 38 Storage medium

Claims (3)

In the machine operation panel display system that creates and displays the machine operation panel display screen data,
Screen part data creation means for creating screen part data of screen parts of the machine operation panel;
A sequence program creating means for creating a sequence program for operating each screen component;
A sequence program created by the sequence program creation means and a storage means for storing the sequence program as screen data;
A screen creation device for creating and storing screen data of a machine operation panel equipped with
Transfer means for transferring screen data created by the screen creation device to a display device;
Display means for displaying a screen based on the transferred screen data;
Sequence program execution means for executing a sequence program associated with each screen component in the display screen;
A machine operation panel display system.   The screen creation apparatus according to claim 1, wherein the screen part data and the sequence program stored in association with each other are added, edited, and deleted for each screen part.   The display device according to claim 1, when the screen of the machine operation panel displayed on the display device is composed of a plurality of screens, executes a sequence program for only the currently displayed screen parts. A display device having a sequence control processing function.

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