JP4463716B2 - Programmable display, display control program, and recording medium recording the same - Google Patents

Description

  The present invention relates to a programmable display capable of easily displaying addresses associated with components provided on a screen, a display control program, and a recording medium on which the program is recorded.

  The programmable display has an interface with the host controller (PLC), displays the operating status of the device connected to the host controller, and accepts an operation input for giving a control instruction to the device from the screen. This is an operation-type display with a function. In general, since the programmable display has a graphic display function, it can display an operation panel, a switch, an indicator lamp, and the like, and serves as an operation terminal in the control system.

  The screen displayed on such a programmable display can be created by the user by using screen creation software (drawing software) according to the specifications of the control system. When creating a screen, a user configures a desired screen by using components, drawing functions, and the like provided by drawing software in a personal computer or the like.

  The above parts are images representing switches, numeric keys, meter displays, graph displays, etc., and are prepared in advance in drawing software in a library format so that they can be combined and handled as actual parts. In addition, the above-described component is used in combination with an image representing the component and setting data for expressing the dynamic change of the image at a designated position on the screen. The setting data is stored in the memory of the programmable display as part of the screen data.

  The created screen is transferred to the programmable display device as screen data and stored. When the host controller is in operation, output components such as a meter display on the screen displayed on the display unit of the programmable display dynamically change according to the state of the device connected to the host controller. Further, an input operation on the screen to an input component such as a switch is given to the device as a control instruction.

  In the drawing software, the address of the memory in the PLC that stores the device data is usually used to reflect the device status on the screen display and the input instruction via the component to the device status. Set to.

  There is a case where it is desired to confirm information regarding such a component on a programmable display. For this purpose, for example, Patent Literature 1 and Patent Literature 2 disclose displaying a list of information about objects including parts.

  In particular, when a problem such as a sudden stop of the system operation occurs, it is necessary to confirm the address in order to identify the device that caused the problem. Conventionally, address confirmation has been performed as follows.

  As shown to Fig.11 (a), in order to switch to the components 102-107 and the address display screen 111 (FIG.11 (b)) in the operation screen 101 displayed on a programmable display as a screen for normal driving | operations. Switch 108 is provided. In the operation screen 101, the changeover switch 108 displays a screen (“address” display screen in FIG. 11A) that can be switched when touched. When the operator touches the changeover switch 108 in this state, the address display screen 111 is switched and displayed as shown in FIG.

  The address display screen 111 is provided with components 112 to 117 in which addresses are described, corresponding to the components 102 to 107, and a changeover switch 118 for switching to the operation screen 101. On the address display screen 111, the changeover switch 118 displays a screen (“Operation” screen in FIG. 11B) that can be switched when touched. When the operator touches the changeover switch 118 in this state, the operation screen 101 is switched and displayed.

In addition, there is a method of starting the drawing software and confirming the set address in a personal computer (personal computer) in which the drawing software is installed.
JP 11-134158 A (published May 21, 1999) JP 2001-266171 A (published on September 28, 2001)

  However, in the address display method as described above, an address display screen 111 used only for address confirmation is required to be paired with the operation screen 101. For this reason, it is necessary to work for inputting the address for each of the parts 112 to 117 on the address display screen 111 in the same manner as inputting the nameplates added on the parts 102 to 107 on the operation screen 101. Work man-hours increase. In addition, in the programmable display, a memory area for storing the address display screen 111 is required in addition to storing the operation screen 101.

  Also, in order to display the address on a personal computer for confirmation, it is necessary to always carry the personal computer. Moreover, in a clean room or the like in a semiconductor production line, there is an inconvenience that a personal computer cannot be brought in to prevent intrusion of dust.

  The present invention has been made in view of the above-described problems, and an object thereof is to display an address set for a component on a programmable display without using a dedicated screen.

  A programmable display according to the present invention is a screen including at least one of a component for displaying the state of a device (for example, a lamp and a numerical display) and a component for changing the state of the device (for example, a switch). In a programmable display for displaying the screen stored in the storage unit, the storage unit stores a screen in which an address specifying an area in which the state of the device is written in the memory is set in the component. In order to solve the problem, an address display unit that acquires the address set from the displayed screen stored in the storage unit and displays the address on the displayed screen is provided. It is a feature.

  In the above configuration, for the currently displayed screen, the address display unit acquires the address set for each component from the screen stored in the storage unit and displays it on the displayed screen. Thereby, the address set to the component can be easily confirmed.

  In the programmable display, it is preferable that the address display means displays the address set on the component. Thereby, the address corresponding to the component can be easily confirmed. Further, it is preferable that the address display means displays the address through the component. As a result, even if the part name (nameplate) etc. is written on the part, the address is displayed through the part, so even if the address is displayed on the part, the part name etc. can be easily confirmed. Can do.

  Alternatively, in the programmable display device, it is preferable that the address display means displays a window for displaying the address set for the designated part. As a result, a window is displayed for the specified component, so that when multiple types of addresses are set for one component, the address display space is greater than when multiple types of addresses are simultaneously displayed on the component. Thus, it is possible to display multiple types of addresses simultaneously more easily.

  Alternatively, in the programmable display device, it is preferable that the address display means continuously and repeatedly displays the address set for the designated part while moving the address on the screen. As a result, since the designated part is repeatedly displayed continuously while moving the address, as in the above configuration, when a plurality of types of addresses are set for one part, a plurality of types are designated on the part. Compared with the case where addresses are displayed at the same time, restrictions on the space for displaying addresses are relaxed, and a plurality of types of addresses can be displayed simultaneously more easily.

  The display control program of the present invention is a display control program for operating any of the aforementioned programmable displays, and is a program that causes a computer to function as the address display means. The display control program is recorded on a computer-readable recording medium. Thereby, the address display means by the programmable display can be realized by causing the computer to read and execute the display control program.

  As described above, the programmable display device according to the present invention acquires the set address from the displayed screen stored in the storage unit by the address display unit, and displays it on the displayed screen. . This eliminates the need for a dedicated screen for displaying the address, so that it is possible to reduce the number of work steps for creating the dedicated screen and the extra memory area for storing the dedicated screen. Play. In addition, it is not necessary to always carry a computer in which the drawing software is installed in order to display the address, and the address management can be facilitated.

  An embodiment of the present invention will be described with reference to FIGS. 1 to 10 as follows.

  As shown in FIG. 1, the control system 1 according to this embodiment includes a programmable display 3, a PLC 4, a serial cable 6, and a device 7.

  The programmable display 3 is connected to the personal computer 2 via the screen transfer cable 5. The screen transfer cable 5 is a cable for transferring screen data created by the personal computer 2 to the programmable display 3 as will be described later, and USB or the like is used. The personal computer 2 has the drawing software (drawing editor 23) installed therein, and is connected to the programmable display 3 via the screen transfer cable 5 when transferring screen data created as described later. Usually, the programmable display 3 and the PLC 4 are disconnected from the programmable display 3 when the control system 1 is in communication.

  On the other hand, the programmable display 3 and the PLC 4 are connected via a serial cable 6. The serial cable 6 is a cable that can perform communication using a communication protocol unique to the PLC 4. The communication protocol is often developed for each PLC 4 model, such as each manufacturer, or even a product of the same company, because the PLC 4 has been developed from a sequencer.

  The PLC 4 captures output data output from the input device 7 via the input unit according to a control program (ladder program) created by the user, and gives the control data to the output device 7. As the input device 7, devices such as sensors (temperature sensors, optical sensors, etc.) and switches (push button switches, limit switches, pressure switches, etc.) are used. As the output device 7, an actuator, a relay, a solenoid valve, a display, or the like is used. These devices 7 are arranged in required portions of various target systems such as a production line. Further, the device 7 may be a specific area in the memory unit 32 described later for storing data manually input from an input device such as a touch panel 33 described later. The device 7 may be a specific area in the PLC 4.

  The memory (device memory) in the PLC 4 stores data (word data and bit data) such as the state of the device 7 and the setting value of the device 7 in an area designated by the device address. In the memory, a word device is set as an area for storing word data such as numerical values as input / output data, and is designated by a word address (device address). The bit device is set as an area for storing bit data such as an on / off state, and is set by a bit address (device address). With such a setting, it is possible to control the devices 7 simply by accessing an arbitrary word device or bit device in the PLC 4, or to individually retrieve information relating to the state thereof.

  In the following description, the device address is appropriately referred to as an address.

  The programmable display 3 includes an arithmetic processing unit such as a CPU, and realizes an operation function and a display function specific to the programmable display by executing a program (screen data) for input operation and display created by the user. It is a computer. The programmable display 3 suitably used as the HMI of the control system 1 is based on screen data determined by combining processing instructions (tags) to be described later, the operation when displaying the state of the device 7 on the screen, The operation for controlling the state of the device 7 in accordance with the operation on the screen is specified. This programmable display 3 acquires the state of each device 7 that displays the state on the display screen via the PLC 4 connected to the self-device through communication with the PLC 4 via the dedicated network 6. 34 has a function of displaying the status of each device 7. The programmable display 3 has a function of instructing the device 7 to control the state of the device in response to an operation on the touch panel 33 described later.

  The acquisition / change of the state of the device 7 may be instructed each time, or a cache is prepared in the programmable display 3, and the cache is accessed at the time of acquisition / change, and at predetermined time intervals or at predetermined intervals. Communication may be performed for each event to synchronize with the actual device address.

  The programmable display 3 includes an HMI processing unit 31, a memory unit 32, a touch panel 33, a display 34, and interface units (I / F in the figure) 35 and 36 in order to realize the above functions. Hereinafter, each main part of the programmable display 3 will be described in detail.

  The touch panel 33 is an input device provided for performing input on the display screen of the display 34. The display 34 is preferably a flat display such as a liquid crystal display or an EL display in order to make the programmable display device 3 thin.

  The interface unit 35 is a communication control unit for the programmable display 3 to perform communication between the screen transfer cable 5 and the personal computer 2, and is connected to the screen transfer cable 5. On the other hand, the interface unit 36 is a communication control unit for the programmable display 3 to communicate with the PLC 4, and is connected to the serial cable 6. Data is transmitted to and from the PLC 4 by communication via the serial cable 6.

  The HMI processing unit 31 performs various types of data processing in order to perform display control processing of the user screen described later. The display control process (display control function) will be described in detail later.

  The memory unit 32 includes memories such as a DRAM 32a, a FEPROM (Flash Erasable and Programmable ROM) 32b, and an SRAM 32c.

  The DRAM 32a is mainly used for work during arithmetic processing such as display control, and is also used for temporary storage of data exchanged with the PLC 4. In particular, the DRAM 32a has a state memory area for transferring the state (device address contents) of the device 7 stored in the input / output memory of the PLC 4 to / from the input / output memory.

  The SRAM 32 c is used for logging data obtained from the PLC 4 and storing setting value data (recipe data) to be given to the PLC 4.

  The FEPROM 32b is a rewritable read-only flash memory, and serves as a hard disk drive in a general personal computer. A flash memory does not have a movable part and is resistant to impacts, and thus operates stably even in a poor ambient environment.

  The FEPROM 32 (storage means) b has areas for storing a display control system program, a communication protocol, and screen data, respectively, as shown in FIG.

  The display control system program is a program for realizing a basic function for performing image display control. Functions realized by the display control system program in the HMI processing unit 31 will be described in detail later.

  The communication protocol (dedicated communication protocol) is a protocol used in communication processing with the PLC 4, and is uniquely determined according to the model (manufacturer) of the PLC 4. This communication protocol includes a command code that instructs reading of data to the PLC 4. By combining this command code with an address associated with the control function of the PLC 4, data about a desired control function can be transmitted to the PLC 4.

  The screen data is data of a screen displayed on the programmable display 3, and includes a base screen to be displayed on the display 34, data of components, a processing instruction word W assigned to each component, and the like.

  As shown in FIG. 3, the processing instruction word (tag) W included in the screen data is created for each event to be executed on the base screen. The processing instruction word W basically includes the file number F of the base screen on which the display control operation is to be executed, the event name T for specifying the operation content to be executed on the base screen, and the execution event for each execution event. A set of reference information I including one or a plurality of data to be referred to is provided.

  In the programmable display device 3 according to the present embodiment, as the above-described tag, a display tag indicating a correspondence between an area (display range) on the base screen and a device address of a device corresponding to display in the area, and on the screen An input tag indicating the correspondence between an area (input range) and an address corresponding to a touch input to the area is defined. Furthermore, in this embodiment, each tag can be associated with at least one of a plurality of unit screens.

  The display tag can display a predetermined graphic at a corresponding position on the base screen in conjunction with the operation of the touch panel 33. That is, the display tag includes the file number of the base screen as the file number F, includes the event name that specifies the display of the display target such as a graphic as the event name, and specifies the display coordinate range of the display target and the display target to be called It includes a number and an address for referencing the display target when displaying.

  Also, the input tag enables the bit device set at a predetermined address position in the state memory area provided in the DRAM 32a to be reversed in conjunction with, for example, a touch operation on the touch panel 33. That is, the input tag includes the file number of the unit screen as the file number F, the event name specifying the operation of the touch panel 33 as the event name T, and the input coordinates that validate the input operation from the touch panel 33 as the reference information I The range and the address to which data should be rewritten in conjunction with the touch operation on the touch panel 33 are included.

  The screen data is created by the drawing editor 23 described later and downloaded to the FEPROM 32b. As shown in FIG. 4, the screen data is stored in the FEPROM 32b as a screen file in the file format. As shown in FIG. 4, this screen file SF is composed of graphic data FD, address data AD, and address display setting AS. The graphic data FD includes graphic data such as a circle and a rectangle, part data, a character string, a processing instruction word W, and the like. The address data AD includes comments corresponding to the addresses and addresses set in the drawing editor 23 for data associated with addresses such as part data and processing instruction word W in the graphic data FD.

  The comment includes an event name such as an operation state of the device, a code corresponding to the device 7 such as SW corresponding to the switch and a lamp, and an operation instruction. Comments can also be handled as variables. The comment defined in this way is associated in advance with a desired input / output terminal number (the aforementioned device address) corresponding to the device 7.

  The address display setting AS is a setting for displaying an address corresponding to each component on the screen displayed on the programmable display 3. This setting is performed by the drawing editor 23 as will be described later.

  The display control function of the HMI processing unit 31 is configured to display screen data, set various data on the user screen, transmit the set data to the PLC 4, and display the data received from the PLC 4 on the user screen. This display control system program is realized by causing an arithmetic processing means such as a CPU included in the programmable display 3 to execute the display control system program. This display control function extracts the display tag related to the unit screen currently being displayed from the screen data, and reads the contents of the device address related to each display tag at a predetermined cycle for the display tag. The part of the expression format specified by the tag is displayed in the specified area on the screen in a form corresponding to the read value.

  On the other hand, when the display control function receives an input operation on the touch panel 33, the display control function searches the screen data for an input tag corresponding to the currently displayed unit screen and matches the input operation, and indicates the device address indicated by the input tag. (Data stored in the memory area specified by the device address) is rewritten according to the input result. Thereby, the programmable display 3 displays the state of the device 7 indicated by the screen data at a display position (parts, etc.) indicated by the screen data in an expression format indicated by the screen data, or allows an input operation by a part in the screen data. Can be controlled accordingly.

  The HMI processing unit 31 includes an address display processing unit 31a as part of the display control function. This address display processing unit 31a (address display means) is a form to be described later with respect to a component for which an address is set by operating a dedicated switch provided on the operating state screen based on the address display setting AS described above. To display the address on the operating status screen.

  The HMI control unit 31 is a functional block part realized by executing a display control system program (display control program) stored in the FEPROM 32b by an arithmetic processing unit such as a CPU. The display control system program can be recorded on a recording medium configured to be separable from the programmable display 3 and is installed in the programmable display 3 from the recording medium.

  The above recording media include tape systems such as magnetic tapes and cassette tapes, magnetic disk systems such as floppy disks and hard disks, optical disk systems such as CD-ROM, MO, MD, and DVD, IC cards (including memory cards), optical A card system such as a card is preferred. In addition, the program medium may be a medium that carries a fixed program including a semiconductor memory such as a mask ROM, EPROM, EEPROM, flash ROM, or the like.

  Further, if the control system 1 is configured to be connectable to a communication network including the Internet, the control system 1 may be a medium that dynamically carries the program so as to download the program from the communication network.

  Next, the personal computer 2 will be described. The personal computer 2 includes a CPU, a memory (RAM, ROM, etc.), an external storage device (hard disk drive, MO drive, etc.), a display device, and an input device (keyboard, mouse, etc.). Further, as shown in FIG. 1, the personal computer 2 includes a control unit 21, an interface unit (I / F in the drawing) 22, a drawing editor 23, and a data storage unit 24.

  The interface unit 22 is a communication control unit for performing communication with the programmable display 3 and is connected to the screen transfer cable 5.

  The control unit 21 is a part that performs arithmetic processing including a CPU and a memory, and executes a drawing editor 23 that is an application program on the operating system. The personal computer 2 functions as a screen creation device by causing the control unit 21 to execute the drawing editor 23. The drawing editor 23 is recorded on a recording medium configured to be separable from the personal computer 2, and can be installed in the personal computer 2 from this recording medium.

  The drawing editor 23 includes a screen creation unit 23a and an address setting unit 23b.

  The screen creation unit 23a is capable of creating a user screen that is a user's own screen, such as switches, lamps, numeric keys, various displays (for example, numerical display, meter display, and graph display), It has a tag setting function, a drawing function, a text input function, and the like. As components, not only components having a single function but also components having a plurality of functions such as a composite switch, a counter, and a timer are prepared. Parts as display elements are registered in a library format so that the user can easily select them, and input tags, display tags, and the like corresponding to the functions of the parts are assigned in advance. The drawing function is used to draw line and curved line figures (display elements), to draw basic figures (display elements) such as circles, rectangles, and triangles, and to fill them with specified colors and patterns in the figure. It is a function.

  The address setting unit 23b sets (corresponds to) the above-described address and a comment (variable) set by the user for the word device or bit device specified by each address. Specifically, the address setting unit 23b provides a dialog box 8 for address setting as shown in FIG. 5 as a user interface, and sets the address input by the dialog box 8 as a component. Thereby, the component is associated with the address. The address setting unit 23b also cancels the address setting.

  The dialog box 8 includes a comment display field 81, a component display field 82, an operation bit address setting field 83, a monitor bit address setting field 84, a bit operation setting field 85, an address display setting check box 86, and an address transparency. Display check box 87.

  The comment display field 81 is provided for inputting and setting the comment described above. The component display field 82 is provided for displaying an image of the selected component. When a browser button (described as “buzzer” in the figure) provided below the part display field 82 is clicked, the address setting unit 23b displays a part library (parts browser) (not shown), and the user selects the part. When one is selected from the library, an image of the component (switch SW in FIG. 5) is displayed in the component display field 82.

  The operation bit address setting field 83 is provided for setting an address for an operation component such as a switch. When a pop-up keyboard icon (not shown) provided in the dialog box 81 is clicked, the address setting unit 23b displays a pop-up keyboard, and the address input by the user using the pop-up keyboard is displayed in the address display field 82. Set in association with the part.

  The monitor bit address setting field 84 is used to set the name plate or background color of the On state or Off state when the state of the operation bit address ("On" or "Off") set by touching the operation component changes. It is provided for setting and inputting the address. When another pop-up keyboard icon (not shown) provided in the dialog box 81 is clicked, the address setting unit 23b displays a pop-up keyboard and displays an address input by the user using the pop-up keyboard in the address display field 82. The monitor bit address is set in association with the selected component. Note that the above-described On state or Off state is selected in a “state” column provided above the component display column 82.

  The bit operation setting column 85 has a radio button for selecting any one of “set”, “reset”, “momentary”, and “inverted” prepared for components such as a switch for performing a bit operation. .

  The address display check box 86 is provided for setting whether or not to display an address on the screen for the component displayed in the component display field 82 in which the address is set. This setting is included in the screen data as the address display setting AS described above.

  The address transparent display check box 87 is provided for setting whether or not to transparently display addresses in a second display pattern described later. This setting is included in the screen data together with the address display setting AS described above.

  The data storage unit 24 is a storage device that stores a user screen (screen data) created by the drawing editor 23 as a screen file SF. The data storage unit 24 includes a storage element such as a memory or a large capacity storage device such as a hard disk device. The screen file SF stored in the data storage unit 24 is transferred to the programmable display 3 and stored in the FEPROM 32b for downloading to the execution environment.

  Here, an address display operation in the control system 1 configured as described above will be described.

  First, as shown in FIG. 6, an operation screen 11 used for operation is displayed on the programmable display 3. The operation screen 11 includes lamps 12 and 13 and numerical indicators 16 and 17 as display parts, and includes switches 14 and 15 as operation parts.

  The switch 14 is provided, for example, to stop the operation of the motor as the device 7, and has a “motor” nameplate (set by the drawing editor 23). The switch 15 is provided, for example, to stop the operation of the pump as the device 7 and is labeled with a “pump” nameplate. The lamp 12 is provided to display the operation state of the motor and is labeled with a “stop” nameplate. When the motor operation is stopped, the lamp 12 changes from an unlit state to a lit state. The lamp 13 is provided to display the operation state of the pump and is labeled with a “stop” nameplate. When the pump operation is stopped, the lamp 13 changes from the off state to the on state. The numerical indicators 16 and 17 are provided for displaying the numerical value of the measurement target measured by the counter, the physical quantity detected by the sensor, and the like.

  The display changeover switch 18 is provided for switching to the address display mode or the operation mode. In the operation mode, as shown in FIG. 6, switching to the address display mode when touched is indicated by “address” on the changeover switch 18.

  Next, four address display patterns displayed by the address display processing unit 31a will be described.

  When the changeover switch 18 is touched, the address display processing unit 31a displays addresses on the lamps 12 and 13, the switches 14 and 15 and the numerical indicators 16 and 17, respectively, in the first display pattern shown in FIG. . At this time, the address display processing unit 31a identifies the corresponding screen file SF in the FEPROM 32b from the screen number of the currently displayed screen, and confirms that the address display setting AS is included in the screen file SF. The address data AD is read out, and the address indicated by the address data AD is displayed on each component.

  When the changeover switch 18 is touched, the address display processing unit 31 corresponds to the lamps 12 and 13, the switches 14 and 15, and the numerical indicators 16 and 17, respectively, in the second display pattern shown in FIG. The addresses are displayed as transparent address images 92 to 96 that pass through each component. At this time, as in the case of the first display pattern, the address display processing unit 31a identifies the screen file SF, and the screen file SF includes the transparent display setting together with the address display setting AS. Upon confirmation, the address data AD is read out, and the address indicated by the address data AD is displayed as transparent address images 92 to 96 on each of the above components.

  In the above first and second display patterns, the operation state of the system is maintained even when the mode is switched to the address display mode, so that the touch operation to the switches 14 and 15 is effective. In the first and second display patterns, the lamps 12 and 13 are also turned on or off, and in the second display pattern, the numerical displays on the numerical indicators 16 and 17 are also effective. In the first and second display patterns, switching to the operation mode when touched in the address display mode is indicated on the changeover switch 18 as “operation”.

  The address display processing unit 31 shifts to the maintenance mode when the changeover switch 18 is touched. In this maintenance mode, the operating state is maintained, but unlike the first and second display patterns, the touch operation to the switches 14 and 15 is invalid, the lamps 12 and 13 are turned on or off, and the numerical indicators 16 and 16 are displayed. The numerical display of 17 is also invalid.

  When a part is touched in the maintenance mode (switch 14 in FIG. 9), the address display processing unit 31 changes the display state of the part in the third display pattern shown in FIG. An address display window 19 in which the address is described is displayed on the operation screen 11. In the address display window 19, comments set in the dialog box 8 are displayed together with various addresses set in the dialog box 8.

  The address display window 19 has a scroll button 19a and a close button 19b. When the scroll button 19a is touched, the address display processing unit 31a scrolls the display content of the address display window 19 downward. Thereby, even when the display content cannot be displayed in the display area of the address display window 19, it can be displayed by scrolling. Further, when the close button 19b is touched, the address display processing unit 31a closes the address display window 19 and stands by in a state where the touch of components can be received.

  In the first and second display patterns, only one address can often be displayed due to the limitation of the area where the address can be displayed on the component. On the other hand, according to the third display pattern, since a plurality of addresses set for one designated component are displayed simultaneously, these addresses can be easily confirmed.

  When the part is touched in the maintenance mode or in the maintenance mode (switch 14 in FIG. 10), the address display processing unit 31 changes the display state of the part in the fourth display pattern shown in FIG. The above comment and address are repeatedly displayed on the lower end of the operation screen 11 from the right side to the left side. In this display pattern, a comment and a plurality of set addresses are continuously displayed for one specified component, so that these addresses can be easily confirmed.

  In the above third and fourth display patterns, switching to the operation mode when touched in the maintenance mode is indicated on the changeover switch 18 as “operation”.

  Since the address is displayed as described above, the user can specify the device 7 that caused the problem from the displayed address when a problem occurs in the operation of the system. Take measures such as program modification (debugging).

  As described above, in the programmable display 3, the address display processing unit 31 reads the address data AD from the screen file SF by touching the changeover switch 18 from the operation mode, and addresses the components on the operation screen 11. Is displayed. This eliminates the need for a dedicated screen for displaying addresses, and reduces the number of work steps for creating the dedicated screen and the extra memory area for storing the dedicated screen. Further, it is not necessary to always carry the personal computer 2 in which the drawing editor 23 is installed in order to display the address.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

  The programmable display of the present invention displays the address (address specifying the area where the device status is written) set on the displayed screen without using a dedicated address display screen. Therefore, it can be suitably used to identify a malfunction or the like of a control system including a programmable display.

It is a block diagram which shows the structure of the control system which concerns on embodiment of this invention. It is explanatory drawing which shows the program structure stored in FEPROM of the programmable display in the said control system. It is explanatory drawing which shows the basic format of the instruction | indication processing word contained in the screen data of the user screen displayed with the said programmable display. It is a block diagram which shows the structure of the principal part containing the HMI process part which is the center part of the control of the said programmable display. It is a figure which shows the dialog box for the address setting which the drawing editor of the said control system provides. It is a figure which shows the driving | running screen displayed by the driving | running state in the said programmable display. It is a figure which shows the 1st display pattern which displays an address on the said driving | operation screen. It is a figure which shows the 2nd display pattern which displays an address on the said driving | operation screen. It is a figure which shows the 3rd display pattern which displays an address on the said driving | operation screen. It is a figure which shows the 4th display pattern which displays an address on the said driving | operation screen. (A) is a figure which shows an operation screen, (b) is a figure which shows the address display screen switched and displayed from the operation screen of (a) by the conventional address display method.

Explanation of symbols

3 Programmable display 11 Operation screen (screen)
12,13 Lamp (parts)
14,15 Switch (parts)
16, 17 Numerical display (parts)
19 Address display window 31 HMI processing section 31a Address display processing section (address display means)
32 Memory unit 32a FEPROM (storage means)
AD address data AS address setting SF screen file

Claims (7)

A screen including at least one of a component for displaying the state of the device and a component for changing the state of the device, and an address for specifying an area in which the state of the device is written in the memory is set in the component Rutotomoni, comprising storage means for storing a screen including a display setting for displaying the addresses displayed the screen, a programmable display for displaying the screen stored in the storage means,
Upon receiving a display instruction of the address, before recognizes said display setting on the screen being displayed is stored in the device憶means is included to obtain the address set from the screen Address display processing means for displaying on the displayed screen ,
A programmable display device comprising: an address non-display processing unit that does not display the address on the screen when receiving an instruction to hide the address . The programmable display according to claim 1, wherein the address display processing means displays the address set on the component. The programmable display device according to claim 2, wherein the address display processing means displays the address through the component. The programmable display according to claim 1, wherein the address display processing means displays a window for displaying the address set for the designated part. 2. The programmable display device according to claim 1, wherein the address display processing means repeatedly displays the address set for the designated part continuously while moving on the screen. A display control program for operating the programmable display device according to any one of claims 1 to 5, wherein the display control program causes a computer to function as the address display processing means.   A computer-readable recording medium on which the display control program according to claim 6 is recorded.

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