JP2010009497A - Display, control method for display, and control program for display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce preparation manhours for preparing a program for controlling control-objective equipment. <P>SOLUTION: This display 150 having a touch panel includes an operation input part 21 for receiving an input of a touch operation onto the touch panel, a data input part 22 for receiving an input of a data from an outside of the display 150, a control part 23 constituted to execute a command in response to the touch operation, based on a signal transmitted from the operation input part 21, a generation part 24 constituted to generate an operation log including the command executed in the control part 23, and including a time when the operation is executed onto the touch panel, a storage part 25 constituted to store the operation log generated by the generation part 24, and an output part 26 constituted to output the operation log stored in the storage part 25. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a display, and more particularly to a display having a touch panel.

  A control device called a programmable logic controller (PLC) is connected to an automatic assembly machine or other control target device (also referred to as a target device), performs sequence control or other control, and controls the device. Data representing the state is received. The control of the control target device or the display of the state is performed, for example, via a display having a function of displaying the state of the control target device and a function of controlling the operation of the device. In recent years, a display device having a control function of the control device has been introduced.

  Such a display device displays a state of a connected control target device or displays a screen for an operator to input an instruction. The screen displayed at this time is created in a programming language prepared in advance in an editor device for editing the screen.

  Also, a command for controlling the operation of the control target device by the display is created by a program editor that edits the command. The International Electrotechnical Commission (IEC) has established a programming language that can be executed as such an editor. This language includes SFC (Sequential Function Chart), LD (Ladder Diagram), IL (Instruction List), FBD (Function Block Diagram), and ST (Structured Text).

  The screen for accepting instructions from the operator is a specific process called a command (for example, switch opening / closing operation, logical operation, data transfer, etc.) in a ladder diagram or other function chart created in advance in the above language, for example. It is created by assigning the variable corresponding to. In this case, various attributes such as a bit attribute of “0” or “1”, an integer attribute, and an integer array are included in the attribute of the data referred to by the variable corresponding to the process. Therefore, it is necessary to individually assign variables that refer to appropriate attributes for each process.

  Until now, the assignment of variables and other data input have been usually performed by the user (the developer of the ladder program) through the keyboard. For this reason, there has been a problem that erroneous data is input due to a key operation error or the like, or it takes time to input data.

Therefore, for example, Japanese Patent Laying-Open No. 2005-141564 (Patent Document 1) discloses an editor device for preventing erroneous input of data. Moreover, the international publication 2005/091098 pamphlet is disclosing the indicator which can confirm the state at the time of abnormality of a control object apparatus.
JP 2005-141564 A International Publication No. 2005/091098 Pamphlet

  However, since the creation of the program still takes time, there is a problem that the flexible development of the execution program is not easy with the introduction of a new production line. In addition, it may be difficult to uniformly define the interval between a plurality of commands in the contents of equipment control, and adjustment by an expert may be required after installation. For example, the time interval between one touch operation and the next touch operation may vary depending on the operating state of the control target device, but such a time interval may not be apparent unless specific control is executed. is there. Then, in order to maintain the accuracy of control by the program within a certain range, adjustment by an expert may be necessary after executing the control. Therefore, there are cases where it is difficult to maintain the control accuracy of an existing program with a newly created program only by creating a program for controlling the device with an editor device. In the present specification, the “time interval” refers to an interval at which two operations are performed when two consecutive operations are given to the display, for example. The time interval is expressed, for example, as a unit of time such as milliseconds or other times, or by a count value measured by a processor or other arithmetic unit at a predetermined interval, but is not limited thereto.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a display capable of supporting creation of an execution program. Another object is to provide a display that can support the creation of a program that reduces the development man-hours.

  Another object is to provide a display control method that supports creation of an execution program. Another object is to provide a display control method that supports the creation of a program that reduces the development man-hours.

  Another object is to provide a display control program that can support creation of an execution program. Another object is to provide a display control program that can support the creation of a program that reduces the development man-hours.

  A display according to an aspect of the present invention is executed by a touch panel, a control unit configured to execute a command specified by the image based on an operation on the image displayed on the touch panel, and the control unit. And a generation unit configured to generate an operation log including time interval information on the operation of the command and the touch panel.

  Preferably, the touch panel accepts a start operation for an image indicating the start of operation log acquisition. The generation unit is configured to start generating an operation log based on an operation on the touch panel after the start operation.

  Preferably, the touch panel accepts an end operation for an image indicating the end of acquisition of the operation log. The generation unit is configured to generate an operation log based on an operation on the touch panel performed before the end operation.

  Preferably, the display further includes input means for receiving an input of data representing a state of the external environment of the display when an operation on the touch panel is performed. The generation means is configured to generate an operation log including the data in addition to the instruction and time information when the operation is performed. The “external environment state” does not mean only the environment around the display unit, but the PLC connected to the display unit, the state of the control target device connected to the PLC, or the PLC or control target. It also includes the environment around the equipment.

Preferably, the display device further includes conversion means for converting the operation log into a program.
When the other situation of this invention is followed, the control method of the display provided with the touch panel, the processor which performs a program, and memory is provided. In this control method, the processor executes each command specified by an image displayed on the touch panel when each operation is performed based on a program in response to each operation on the touch panel; A step of generating an operation log including each command specified by each operation and time interval information of two operations performed based on each operation on the touch panel, and an operation log generated in the step generated by the processor Storing.

  Preferably, the control method further includes a step in which the touch panel accepts a start operation for an image indicating the start of operation log acquisition. The step of generating includes a step of starting generation of an operation log based on an operation on the touch panel after the start operation.

  Preferably, the control method further includes a step in which the touch panel accepts an end operation for an image indicating the end of acquisition of the operation log. The step of generating includes a step of generating an operation log based on an operation on the touch panel performed before the end operation.

  Preferably, the control method further includes a step of receiving an input of data representing a state of an external environment of the display when the processor performs an operation on the touch panel. The step of generating includes a step of generating an operation log including data in addition to the instruction and the time when the operation is performed.

  According to still another aspect of the present invention, a control program for a display device including a touch panel, a processor, an application program, and a memory is provided. This control program executes each command specified by the image displayed on the touch panel when each operation is performed by the processor executing the application program based on each operation on the touch panel. The processor generates, based on the operation on the touch panel, a step in which the processor generates an operation log including each command specified by each operation and time interval information in which two consecutive operations are performed, and the processor generates Storing the operation log generated in the step in a memory.

  According to the present invention, it becomes easy to create an execution program and the development man-hour is reduced. Further, according to the present invention, it is possible to support the creation of a program that can maintain a constant control accuracy.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[Usage]
With reference to FIG. 1, the usage aspect of the indicator 150 which concerns on embodiment of this invention is demonstrated. FIG. 1 is a diagram illustrating the flow of data generated by the display device 150. In one embodiment, the display 150 is configured as a programmable programmable display (hereinafter referred to as “display”) having a touch panel. A program (for example, a ladder program) for operating the display device 150 is generated by the editor device 100. The editor device 100 has a function of generating screen data (project file) displayed on the display device 150. The ladder program and screen generated by the editor device 100 are sent to the display device 150 by a memory card or other data recording medium 10 or by wire or wireless. Usually, the editor device 100 is a general-purpose personal computer installed with an editor program.

  The display device 150 is connected to a control target device called a so-called target device. The display device 150 executes the ladder program, generates an instruction according to the execution, and sends the generated instruction to the control target device. Here, the user of the display device 150 can give a command in addition to the command defined by the ladder program by performing a touch operation on the touch panel.

  The display device 150 according to the present embodiment can receive such a touch operation and record a command generated based on the operation and a time interval between the commands as a log. Here, the time interval refers to, for example, the time between the times when each command is issued when two consecutive commands are issued. Specifically, the time interval information may be expressed as milliseconds or other units of time, or may be expressed as a count value based on the clock of the processor of the personal computer.

  The display 150 transmits the command to the control target device and sequentially accumulates log information of the command. Thus, log information is a collection of executed instructions and time interval information between instructions. In addition to the log information, ambient environment data may be accumulated. The ambient environment data can include, for example, temperature, atmospheric conditions, brightness, and the like.

  The log information generated by the display device 150 is sent to the computer 600 for simulation through the data recording medium 10 or a communication line. The computer 600 is realized as a computer device having a normal configuration.

  The computer 600 uses the input log information and the screen data (project file) generated by the editor device 100 to execute a screen display and command transmission simulation realized by the display device 150. Specifically, the computer 600 converts log information into a program, and in this embodiment, into a ladder program. Then, the computer 600 executes a simulation by using the ladder program and the screen data. When the program developer confirms that the execution result of the simulation is the same as the result realized by the display device 150, the program developer inputs the log information to the display device 1500. The display 1500 is a new display that is expected to execute the same control as the control executed by the display 150, for example. A user of the display device 1500 (for example, a ladder program developer) further inputs screen data (project file) generated by the editor device 100 into the display device 1500. This screen is the same as the screen used by the display device 150.

  With this configuration, the ladder program executed by the display device 150 is similarly executed by the display device 1500. As a result, it is not necessary to develop a program for operating the display 1500 from the beginning, and a program confirmed to be executed by the display 150 can be used in the form of log information. The same operation as that performed is reproduced by the display 1500. As a result, a program that realizes similar processing can be easily obtained. In the above embodiment, the computer 600 converts the log information into a program, but the display device 150 may convert the log information into a program.

[Function configuration]
With reference to FIG. 2, the structure of the indicator 150 which concerns on embodiment of this invention is demonstrated. FIG. 2 is a block diagram showing a configuration of functions realized by display device 150. The display device 150 includes an operation input unit 21, a data input unit 22, a control unit 23, a generation unit 24, a storage unit 25, and an output unit 26.

  The operation input unit 21 receives an input of a touch operation on the display device 150. The operation input unit 21 is configured as an analog touch panel, for example. In another aspect, the operation input unit 21 may be realized as a digital touch panel. The operation input unit 21 sends a signal corresponding to the touch operation to the control unit 23.

  The data input unit 22 receives data input from the outside of the display device 150. The data input to the data input unit 22 includes, for example, operating environment data of a control target device connected to the display device 150. The operating environment data includes, for example, temperature and other environmental conditions, and operating conditions of the control target device (for example, the rotational speed of the motor).

  The control unit 23 is configured to execute a command corresponding to the touch operation based on a signal sent from the operation input unit 21. The control unit 23 is realized, for example, as a central processing unit such as a processor or a combination of circuit elements configured in advance so as to execute the instruction.

  The control unit 23 generates a command corresponding to the touch operation using the ladder program and the screen data generated as the project file, and transmits the command to the control target device. In another aspect, the control unit 23 switches screen display on the touch panel instead of generating a command to be transmitted to the control target device.

  The control unit 23 sends, to the generation unit 24, data for specifying the screen, data for specifying the touch operation, and the time at which the touch operation was performed as an output corresponding to the touch operation.

  The generation unit 24 is configured to generate an operation log including an instruction executed by the control unit 23 and a time when an operation on the touch panel is performed. The configuration of the operation log generated by the generation unit 24 will be described later. The generation unit 24 is also realized by a central processing unit such as a processor that implements the control unit 23.

  The storage unit 25 is configured to store the operation log generated by the generation unit 24. The output unit 26 is configured to output an operation log stored in the storage unit 25. The output unit 26 is realized as, for example, a drive device for writing data to a removable data recording medium or a communication interface for transmitting an operation log to a communication line connected to the display device 150.

  In one aspect, the operation input unit 21 is configured to accept a start operation for an image indicating the start of operation log acquisition. The generation unit 24 is configured to start generating an operation log based on an operation on the touch panel performed after the start operation.

  In another aspect, the operation input unit 21 is configured to accept an end operation for an image indicating the end of acquisition of the operation log. The generation unit 24 is configured to generate an operation log based on an operation on the touch panel performed before the end operation. With this configuration, only specific operations can be extracted as operation logs.

  In another aspect, data input unit 22 accepts input of data representing the state of the external environment of display device 150 when an operation on the touch panel is performed. The generation unit 24 may be configured to generate an operation log including the data in addition to the command executed by the control unit 23 and the time when the operation is performed. In the embodiment described above, the time is recorded in the operation log as the time interval information, but the time elapsed from the first operation to be held in the operation log may be counted. . In this case, for example, the generation unit 24 can count based on the clock output by the control unit 23.

[Hardware configuration]
With reference to FIG. 3, the hardware configuration of display 150 according to the embodiment of the present invention will be described. FIG. 3 is a block diagram showing a hardware configuration of display 150 and editor device 100 that generates a program used by display 150.

  With reference to FIG. 3, configurations of editor device 100 and display device 150 according to the exemplary embodiment of the present invention will be described. FIG. 3 is a diagram for explaining the editor device 100 according to the present embodiment, a display device 150 that uses image data generated by the device, and a PLC (Programmable Logic Controller) 180. In general, the editor device 100 and the display device 150 are not always connected. For example, the image data generated by the editor device 100 is temporarily connected to the display device 150.

[Editor device configuration]
The editor device 100 mainly includes a control unit 110 that controls the operation of the editor device 100, a memory unit 112 that temporarily stores data, and a display unit 114 that displays a created image and the like. An input unit 116 for a user to input data, a drive unit 118 to which a recording medium 120 is mounted, a communication unit 122 for inputting / outputting data to / from the outside, and a large amount of data to be stored It includes a data storage unit 140 and an editor unit 130 for editing screens and other graphics. The editor unit 130 includes a drawing editor 132 and a variable management unit 134.

  The controller 110 is, for example, a CPU (Central Processing Unit), an MPU (Micro Processing Unit), or other arithmetic device. Based on an instruction given to the editor device 100, the control unit 110 reads a program or data stored in advance in the data storage unit 140 into the memory unit 112 and executes the program.

  The memory unit 112 is, for example, a RAM (Random Access Memory), a ROM (Read Only Memory), or other memory. The memory unit 112 stores fixed data such as initial data, or temporary processing results by the control unit 110 and other data. The storage of this data will be described later.

  The display unit 114 is, for example, a display device. The display unit 114 displays a screen based on the signal received from the control unit 110. The display device is, for example, a liquid crystal or an organic EL (Electro Luminescence), but may be another mode.

  The input unit 116 is a keyboard, mouse, or other input device. The user can input data for editing the screen, setting data associated with an image included in the screen, and the like via the input unit 116.

  The drive unit 118 can read data from the attached recording medium 120 or write data to the recording medium 120. The drive unit 118 includes a CD (Compact Disk) drive device, a memory card reader, and the like.

  The communication unit 122 is an interface for communicating with an external device via a communication line. The communication unit 122 is, for example, an interface such as USB (Universal Serial Bus) standard, RS (Recommendation Standard) -232C standard, RS-422 standard, etc., but is not limited thereto, and devices and data connected via a communication line. As long as it can communicate.

  The editor unit 130 realizes a function for editing a screen displayed on the display unit 150 by the user based on a program and data stored in advance. The drawing editor 132 includes data necessary for drawing (for example, parts such as switches, lamps, numeric keys, and various displays, a drawing function, and a text input function).

  The drawing editor 132 generates a screen desired by the user based on these data and programs prepared in advance. The drawing editor 132 can assign an input / output number (address) for each control target device of the component image (icon) arranged on the created screen. The user screen created by the drawing editor 132 is stored in the data storage unit 140. This user screen is transferred to the display 150 connected via the communication unit 122 based on a user instruction. The transferred screen data is uploaded to a FEPROM (Flash Erasable Programmable ROM) 164 via the maintenance port 154 of the display device 150 that is temporarily connected to the communication unit 122.

  The variable management unit 134 assigns the function (lamp, switch, counter, timer, etc.) represented by the symbol to the variable input from the drawing editor 132 as a function attribute, and causes the data storage unit 140 to store the variable.

  The function attribute is given by including a reserved word in the variable. In this case, for example, in the case of a lamp, “L” is a reserved word, and this reserved word is included at the beginning of the variable. For example, “LOOO” (O represents any letter or number) represents a lamp variable whose identification number is OOO. Variables can be set similarly for switches, counters, timers, and the like. The assignment of the function attribute is not limited to the above method.

  The program editor 136 creates a control program to be executed by the display device 150 based on the screen created by the drawing editor 132 and the variables stored in the data storage unit 140. This control program displays, for example, the status of an assembly machine (not shown) or other control target device connected via the PLC 180 connected to the display 150 or other control target devices. This is a program for outputting an instruction for performing the specified operation.

  The data storage unit 140 is, for example, a hard disk device, and can store a large amount of data. The control unit 110 controls data writing to the data storage unit 140 or data reading from the data storage unit 140.

[Configuration of display unit]
Referring again to FIG. 3, the display 150 includes a CPU 152, a maintenance port 154, a memory 160, a communication controller 166, a VRAM (Video RAM) 168 as main components connected to each other via a data bus. , A graphic controller 170, a display 172, a touch panel 174, a touch panel controller 176, an I / O (Input / Output) control I / F (Interface) 178, and an I / O unit 179.

  The memory 160 includes a DRAM (Dynamic RAM) 162 and a FEPROM (Flash Erasable and Programmable ROM) 164. The I / O unit 179 includes input / output terminals, input / output circuits, and the like for connecting control target devices 196, 198 and other devices. A plurality of input / output terminals may be provided. The I / O control I / F 178 is an interface circuit that mediates transmission / reception of signals between the CPU 152 and the I / O unit 179. The I / O control I / F 178 includes an input / output memory, a D / A (Digital to Analog) converter, an A / D (Analog to Digital) converter, and the like.

  The CPU 152 executes communication processing with the PLC 180, display processing of the display 172, and the like based on a program stored in the FEPROM 164. Further, the CPU 152 executes processing corresponding to the input based on the input on the touch panel 174.

  The maintenance port 154 is temporarily used when the display device 150 is maintained. New data is input from the maintenance port 154 when the screen to be displayed on the display 150 is changed or when the display control setting of the screen is changed. Thereby, the screen data can be updated without interfering with the communication between the display device 150 and the PLC 180.

  The DRAM 162 temporarily stores data mainly used for display control and other processing in the display 172. The FEPROM 164 is a flash memory capable of rewriting data. Since the flash memory does not have an operating part and is resistant to impact, it can operate stably even if the environment connected to the PLC 180 is poor.

  The communication controller 166 performs data communication with the PLC 180 under the control of the CPU 152. The data to be communicated includes data reported from the PLC 180 (for example, data indicating actual results or other operating conditions), setting data transmitted from the display device 150 to the PLC 180, or the like.

  The VRAM 168 temporarily stores screen display data under the control of the CPU 152. This data is read by the graphic controller 170 and output to the display 172. Thereby, the display 172 can display a predetermined screen.

  Since the display device 150 includes the I / O control I / F 178 and the I / O unit 179, the display device 150 can be connected to the control target device without going through the PLC 180. Therefore, the display device 150 can directly execute, for example, a display of the state of the control target devices 196 and 198 or an operation control instruction.

  The configuration of the display 150 is not limited to the above. For example, the programmable display has a function such as an operation panel, a switch, an indicator light, etc. for performing graphic display, as well as various monitors for management such as operation status and work instructions of devices and other controlled devices, It suffices to have a function as a terminal for inputting a setting value for a device.

  A control screen displayed on such a display can be created by a user by a screen creation program. When such a program is started on the computer, a screen for editing is displayed. The user can arbitrarily use the image blocks constituting the control screen on the screen, and set whether or not the operation can be performed. Here, the image block is, for example, a control screen itself, a component image (symbol) such as a lamp, switch, counter, meter display, or graph display displayed on the control screen, or added to the control screen or component image. An auxiliary image (for example, a pop-up window screen) or the like that is displayed automatically, but is not limited thereto. These images may all be designed by the user, or may be images prepared in advance as templates.

  Referring back to FIG. 3, the PLC 180 is connected to the display device 150 via the network 190. The PLC 180 is further connected to the control target devices 192 and 194. The PLC 180 controls the operations of the control target devices 192 and 194 by a control program stored in advance as a control function unit. The control target devices 192 and 194 are, for example, an automatic assembly machine and a belt conveyor, but are not limited to specific devices. Further, the number of control target devices connected to the PLC 180 is not limited to a specific number.

[data structure]
The data structure of the display device 150 will be described with reference to FIG. FIG. 4 is a diagram conceptually showing one mode of data storage in FEPROM 164 included in display device 150. The FEPROM 164 stores screen data (project file) 410, a ladder program 420, and firmware 430. The ladder program 420 is generated by the editor device 100. The screen data 410 is generated by the drawing editor 132.

  The ladder program 420 is generated by the program editor 136 of the editor device 100. More specifically, when the program developer designates a specific instruction to the editor device 100 and inputs a process corresponding to the instruction and a memory variable to which the instruction is applied, the program editor 136 A ladder program is generated based on these inputs.

  The firmware 430 controls the basic operation of the display device 150. The firmware 430 manages, for example, control of display on the display 172, control of display on the touch panel 172, control of communication with the control target device with which the display 150 communicates.

[Log Information]
With reference to FIG. 5, data generated by display device 150 according to the present embodiment will be described. FIG. 5 is a diagram conceptually showing one mode of storage of log information in FEPROM 164. The FEPROM 164 stores data temporarily held in the DRAM 162 based on a command from the CPU 152.

  As an example, the log information includes a number 510, an address 520, a setting value 530 before the change, a setting value 540 after the change, and a time 550. Number 510 identifies the log for each instruction. When the CPU 152 executes the ladder program, the number 510 is sequentially numbered with the start of the execution. In the example shown in FIG. 5, the CPU 152 assigns log numbers “001” to “100”, but the number of logs to be recorded is not limited to that shown in FIG.

  The address 520 specifies the location where data corresponding to the control target of the control target device is stored. The address 520 is embedded in the ladder program by the program editor 136 when the ladder program is created. The address 520 is designated by the program developer when developing the ladder program.

  The setting value 530 before the change is a value written in the address 520. The changed set value 540 is a value after changing the value written in the address by execution of the instruction. For example, for the log number “001”, the setting value 530 before the change is “0”, but the setting value 540 after the change is set to “10”. Therefore, when the instruction related to the log is executed, the value of the address “LS0000” is changed from “0” to “10”.

  The time 550 is defined in units of milliseconds, for example. The time 550 defines the time from when an instruction is given until the process corresponding to the instruction is executed. In the example of the number “001”, the setting value of the address “LS0000” is changed from “0” to “10” after 100 milliseconds have elapsed since the instruction was given.

  In another aspect, time 550 may be a count value given by CPU 152 instead of information based on milliseconds or other time.

[Configuration of computer for simulation]
With reference to FIG. 6, the configuration of a computer 600 that executes simulation based on log information according to the present embodiment will be described. FIG. 6 is a block diagram showing a hardware configuration of computer 600.

  The computer 600 includes, as main components, a CPU 610 that executes a program, a mouse 620 and a keyboard 630 that receive input of instructions from a user of the computer 600, data generated by executing a program by the CPU 610, or a mouse 620 or a keyboard. RAM 640 that stores data input via 630 in a volatile manner, hard disk 650 that stores data in a nonvolatile manner, optical disk drive 660, data stored in memory card 10, or data stored in memory card 10 includes a card driving device 670, a monitor 680, and a communication I / F 690. Each component is connected to each other by a data bus. CD-ROM 662 and other optical disks are mounted on the optical disk drive 660.

  Processing in the computer 600 is realized by each hardware and software executed by the CPU 610. Such software may be stored in the hard disk 650 in advance. The software may be stored in a CD-ROM 662 or other data recording medium and distributed as a program product. Alternatively, the software may be provided as a program product that can be downloaded by an information provider connected to the so-called Internet. Such software is read from the data recording medium by the optical disk drive 660 or other reading device, or downloaded via the communication I / F 690 and then temporarily stored in the hard disk 650. The software is read from the hard disk 650 by the CPU 610 and stored in the RAM 640 in the form of an executable program. CPU 610 executes the program.

  Each component constituting the computer 600 shown in FIG. 6 is a general component. Since the operation of the hardware of computer 600 is well known, detailed description will not be repeated.

  The data recording medium is not limited to a CD-ROM, FD (Flexible Disk), and hard disk, but is a magnetic tape, cassette tape, optical disk (MO (Magnetic Optical Disc) / MD (Mini Disc) / DVD (Digital Versatile Disc)). ), IC (Integrated Circuit) card (including memory card), optical card, mask ROM, EPROM (Electronically Programmable ROM), EEPROM (Electronically Erasable Programmable ROM), etc. Good.

  The program here includes not only a program directly executable by the CPU but also a program in a source program format, a compressed program, an encrypted program, and the like.

  In another aspect, the computer 600 for simulation may be realized by a computer system that implements the editor device 100. Alternatively, the computer 600 may be realized by a computer system configuring the display 150 or the display 1500.

[Control structure]
With reference to FIG. 7, a control structure of display 150 according to the embodiment of the present invention will be described. FIG. 7 is a flowchart showing a part of a series of processes executed by CPU 152 of display device 150.

  In step S <b> 710, CPU 152 of display device 150 detects that an operation indicating the start of log information generation is input based on an operation on touch panel 174. In step S720, CPU 152 secures a memory area for recording log information in DRAM 162. In step S730, CPU 152 outputs a command associated with the image to one of control target devices 192, 194, 196, 198 based on an operation on the image displayed on touch panel 174.

  In step S740, CPU 152 generates log information based on a command associated with the image. Specifically, the CPU 152 stores the log information including the operation, the time when the operation was performed, and the operating environment (for example, temperature) of the control target device in the memory area. In step S750, CPU 152 detects the next operation on touch panel 174 based on, for example, a signal sent from panel controller 175.

  In step S760, CPU 152 determines whether or not the operation is an operation indicating the end of generation of log information. The determination is made based on, for example, the coordinate value of the image displayed on touch panel 174 and the content of the command assigned to the coordinate value. When CPU 152 determines that the operation represents an end of log information generation (YES in step S760), CPU 152 switches control to step S770. If not (NO in step S760), CPU 152 returns control to step S730.

  In step S770, CPU 152 assigns a name to the generated log information and saves the log information in nonvolatile memory (eg, FEPROM 164). The name of the log information may be, for example, one indicated by the CPU 152 by default according to a predetermined standard, or one input by the user of the display device 150 via the touch panel 174.

[Simulation using log information]
With reference to FIG. 8, a control structure of computer 600 according to the present embodiment will be described. FIG. 8 is a flowchart showing processing executed by CPU 610 of computer 600.

  In step S810, CPU 610 accepts installation of the same screen data as the screen data used by the ladder program executed on display device 150. This screen data is generated by the editor device 100. When the installed screen data is repeatedly used, the screen data may be installed only once.

  In step S820, CPU 610 accepts input of log information generated by display 150. The log information is input by, for example, the CD-ROM 662, the memory card 10, and other data recording media. Alternatively, the log information is received by the communication I / F 690.

  In step S830, CPU 610 accepts an input of a simulation execution command using log information. The execution instruction is given by a user of the computer 600 using, for example, a mouse 620, a keyboard 630, or other user interface.

  In step S840, CPU 610 executes processing based on the log information using the input screen data. In step S850, CPU 610 displays on monitor 680 the details of the process to be executed (screen display switching, change in blinking color of the lamp image, etc.). The program developer can confirm whether or not the touch operation performed on the display device 150 is accurately reproduced by confirming switching of the screen displayed on the monitor 680.

[Installation on other display units]
With reference to FIG. 9, the use of log information generated by the display device 150 according to the embodiment of the present invention will be described. FIG. 9 is a flowchart showing a procedure for installing log information in display 1500. Although the log information itself or a ladder program may be input, a case where log information is input will be described below.

  In step S <b> 910, the user of the new display device 1500 generates screen data to be displayed on the display device 1500 using the editor device 100, and installs the screen data in the display device 1500. In a certain aspect, when the developer intends that the same screen as the screen displayed on the display device 150 is used by the display device 1500, the screen used for the display device 150 is diverted as it is. May be.

  In step S 920, the developer inputs log information whose operation has been confirmed by computer 600 to display 1500.

  In step S930, the developer inputs a program execution command by touching display 150. The display device 1500 switches the screen display using the log information based on the execution command. Thereby, it is not necessary to create a ladder program for operating the display device 1500 on a zero basis.

[Concrete example]
With reference to FIG. 10, a specific example of log information generated by the display device 150 according to the present embodiment will be described. FIG. 10 is a diagram showing operation log information stored in the FEPROM 162 of the display device 150. Seven logs are recorded in the FEPROM 162.

  The first log indicates that a command for starting log recording has been input. This command is given in response to, for example, pressing an icon “start of log recording” (not shown) displayed on the touch panel, or pressing a key preset as a key for receiving the start command.

  The second log indicates that switch A (variable) is set to ON. The third log represents that lamp A (variable) is set on after 10 seconds based on the command. The fourth log represents that switch B (variable) is set to ON after 2 seconds. The fifth log represents that lamp B (variable) is set on after 3 seconds. The sixth log indicates that log collection is terminated based on an operation on the touch panel 174.

  The seventh log indicates that an instruction to end log recording has been input. This command is given, for example, in response to pressing of an icon “end of log recording” (not shown) displayed on the touch panel or pressing of a key preset as a key for receiving the start command. By including “start” and “end” in the log, each of the plurality of log information can be distinguished, and each log information can be extracted.

  FIG. 11 is a diagram conceptually illustrating an example of a ladder program created in advance to be executed by the display device 150. The ladder program includes a ladder that indicates the start of an instruction, a first ladder 1, a second ladder 2, and a third ladder 3 that define specific instructions, and a ladder that indicates the end of the instruction.

  The first ladder 1 includes a component image 1110 representing the switch A and a component image 1120 defining a command for the lamp A. The second ladder 2 includes a component image 1130 that defines a command for the lamp A and a component image 1140 that defines a command for the switch B. The third ladder 3 includes a component image 1150 that defines a command for the switch B and a component image 1160 that defines a command for the lamp B.

  The first ladder 1 defines the processing content in which the lamp A is turned on 10 seconds after the switch A is turned on (10,000 milliseconds). In the part image 1120, the symbol IN represents an input. The symbol Q defines the output destination. The value (10,000) for the symbol PT defines the time (10,000 milliseconds) until the next command is given based on the input signal.

  In the second ladder 2, the component image 1130 is configured to receive an output from the component image 1120 as an input. The second ladder 2 stipulates that the switch B is set to ON after 2 seconds (2,000 milliseconds) after the lamp A is turned ON. The command is given from the component image 1130 in the component image 1140. The output of the component image 1140 is given to the switch B of the component image 1150.

  In the third ladder 3, the switch B is set to ON based on a command from the component image 1140, and the lamp B is set to ON after 3 seconds (3000 milliseconds).

  Note that the interval between instructions does not need to be represented by time, but may be represented by a count value.

  The ladder program shown in FIG. 11 is executed on the display device 150. On the other hand, the display device 150 according to the present embodiment can generate the content of the command as log information and output the log information. The display device 1500 can reproduce the processing shown in FIG. 11 by taking in the output log information. The display device 150 may output a ladder program instead of the log information, and the display device 1500 may capture the output ladder program.

  As described above, the display device 150 according to the embodiment of the present invention sequentially records touch operations given by the user (for example, a skilled operator) to generate log information. This log information is a set of executable instructions. Therefore, when such log information is input to another display device using the same screen data, the other display device executes an instruction based on the log information, so that the display device 150 executes the command. The same processing as that to be performed can be realized. That is, since the display device 150 creates an executable program using the acquired log information, it is not necessary to consider creating the program on a zero basis.

  The log information includes the content of the touch operation and the time when the touch operation is performed, and the elapsed time between the touch operation and the touch operation is calculated as time interval information from this time. Alternatively, in another aspect, a count value between successive touch operations can also be used as time interval information. By using such time interval information, it is possible to create a program that reproduces the control contents with high accuracy. Accordingly, the log information may also include a subtle difference in processing by a user who is skilled in operating the display device 150 (for example, an interval between a certain touch operation and the next touch operation). As a result, even in other display devices that require similar instructions, it is possible to execute instructions that reflect the subtle differences. For example, equipment that has been operated manually by a skilled person can be easily and automatically operated using the program.

  Thus, a display device capable of generating log information for realizing the same processing on another display device without creating a program on a zero basis is provided. In the above-described embodiment, the case where one log information is generated as a file has been described. However, it is also possible to give a name to the file and generate a plurality of files.

  For example, as shown in FIG. 10 or FIG. 11, the range of log information is defined by “start” and “end”. Therefore, this range can be generated as one file. In this way, a part of log information in a series of instruction sequences can be extracted as a file, and can be combined with other log information files extracted from other instruction sequences. As a result, a new instruction sequence can be easily created by combining a plurality of files.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a figure showing the flow of the data produced | generated by the indicator 150 which concerns on embodiment of this invention. It is a block diagram showing the structure of the function implement | achieved by the indicator 150 which concerns on embodiment of this invention. It is a block diagram showing the hardware constitutions of the display apparatus 150 and the editor apparatus 100 which produces | generates the program which the display apparatus 150 uses. It is a figure which represents notionally the one aspect | mode of the data storage in FEPROM164 with which the indicator 150 is provided. It is a figure which represents notionally the one aspect | mode of storage of the log information in FEPROM164. It is a block diagram showing the hardware constitutions of the computer 600 which performs simulation. 7 is a flowchart showing a part of a series of processes executed by CPU 152 of display device 150. 10 is a flowchart showing processing executed by CPU 610 of computer 600. It is a flowchart showing the procedure for installing the log information produced | generated by the indicator 150 which concerns on embodiment of this invention in the indicator 1500. FIG. 6 is a diagram illustrating operation log information stored in FEPROM 162 of display device 150. It is a figure which represents notionally an example of the ladder program produced beforehand in order to make the indicator 150 perform.

Explanation of symbols

  10 Data recording medium, 662 CD-ROM, 1110, 1120, 1130, 1140, 1150, 1160 Parts image.

Claims (10)

A display equipped with a touch panel,
Control means configured to execute a command specified by the image based on an operation on the image displayed on the touch panel;
A display device comprising: a generation unit configured to generate an operation log including instructions executed by the control unit and time interval information on an operation and an operation performed on the touch panel. The touch panel accepts a start operation for an image representing the start of operation log acquisition,
The display device according to claim 1, wherein the generation unit is configured to start generation of the operation log based on an operation on the touch panel after the start operation. The touch panel accepts an end operation for an image indicating the end of acquisition of an operation log,
The display device according to claim 2, wherein the generation unit is configured to generate the operation log based on an operation on the touch panel performed before the end operation. Input means for receiving input of data representing the state of the external environment of the display when an operation is performed on the touch panel;
The display according to claim 1, wherein the generation unit is configured to generate an operation log including the data in addition to the command and time information when the operation is performed.   The display according to claim 1, further comprising conversion means for converting the operation log into a program. A display device control method comprising a touch panel, a processor for executing a program, and a memory,
The processor executing each instruction specified by an image displayed on the touch panel when each operation is performed based on the program in response to each operation on the touch panel;
The processor generates an operation log including each command specified by each operation and time interval information of two operations performed based on each operation on the touch panel;
The processor includes a step of storing the operation log generated in the generating step. The touch panel further includes a step of accepting a start operation for an image representing the start of operation log acquisition,
The control method according to claim 6, wherein the generating step includes a step of starting generation of the operation log based on an operation on the touch panel after the start operation. The touch panel further includes a step of accepting an end operation for an image indicating the end of acquisition of the operation log,
The control method according to claim 7, wherein the generating step includes a step of generating the operation log based on an operation on the touch panel performed before the end operation. The processor further includes a step of accepting input of data representing a state of an external environment of the display when an operation is performed on the touch panel;
The control method according to claim 6, wherein the generating step includes a step of generating an operation log including the data in addition to the command and the time when the operation is performed. A control program for a display device including a touch panel, a processor, an application program, and a memory.
Based on each operation on the touch panel, the processor executes each command specified by an image displayed on the touch panel when each operation is performed by executing the application program;
Based on an operation on the touch panel, the processor generates an operation log including each command specified by each operation and time interval information on two operations performed;
A control program for a display, wherein the processor executes a step of storing the operation log generated in the generating step in the memory.

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