JP2016126486A - Programmable display unit and plc display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a programmable display unit which allows a user to use a voice reproduction function simply.SOLUTION: A programmable display unit includes: a screen data acquisition section 101 which acquires screen data 5 for displaying a functional component indicating an internal state of a PLC 2 and an operation screen 9 with the functional component arranged therein to change the internal state of the PLC 2, and the screen data 5 including a component image, address information for specifying a device in the PLC 2, and character string information formed of character strings associated with the device in the PLC 2, from a screen data generation apparatus 20; an operation screen display section 103 which displays an operation screen 9, on the basis of the screen data 5; a PLC control section 107 which changes the internal state of the PLC 2, on the basis of a user operation on the functional component; a voice data generation section 112 which generates voice data 8, on the basis of the character string information of the screen data 5; and a voice output control section 110 which causes a speaker 13 to output voice, in association with the functional component, on the basis of the voice data 8.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a programmable display and a PLC display system, and more particularly to an improvement of a programmable display that displays the internal state of the PLC and changes the internal state of the PLC based on a user operation.

  A PLC (Programmable Logic Controller) is a control device for controlling input / output devices such as a sensor device and a drive device in an FA (Factory Automation) system. The programmable display is a display device that is connected to the PLC and displays the internal state of the PLC, and displays an operation screen on which various functional components associated with devices in the PLC are arranged. The operation screen is a user drawing screen created using a terminal device in which the drawing program is installed. The functional component includes a switch component that is associated with a bit device such as a relay circuit and changes the internal state of the PLC in accordance with a user operation.

  In such a programmable display, if the operation content and the content of the state change are notified by voice at the timing when the switch part in the operation screen is operated or the internal state of the PLC changes, erroneous operation is prevented. Further, the contents of the state change can be easily identified.

  For example, Patent Document 1 describes a display system 1 that causes a programmable display 3 to reproduce sound data created in a personal computer 2. The personal computer 2 is a terminal device that creates screen data for displaying an operation screen. The personal computer 2 converts text data 62 into sound data and transfers the sound data to the programmable display 3. The programmable display 3 reproduces and outputs sound from the speaker 16 based on the sound data.

JP 2008-139777 A

  In the conventional PLC display system as described above, the user has to create character data for voice output separately from the screen data. Further, in the conventional PLC display system, the user has to specify the timing for reproducing the audio data, and it is difficult to use even if the audio reproduction function is provided. For example, in the case of the display system described in Patent Document 1, the user himself / herself has to specify the character information itself that is the source of the voice data.

  This invention is made | formed in view of the said situation, and it aims at providing the programmable display which a user can utilize an audio | voice reproduction | regeneration function simply.

  It is another object of the present invention to provide a PLC display system that allows a user to easily use an audio reproduction function. In particular, it is not necessary for the user to create the character data for voice output separately from the screen data, and the voice data is played back at an appropriate timing even if the user does not specify the timing for playing the voice data. An object of the present invention is to provide a PLC display system capable of performing the above.

  The programmable display device according to the first aspect of the present invention is screen data for displaying an operation screen on which a functional component indicating the internal state of the PLC or a functional component that changes the internal state of the PLC in accordance with a user operation is arranged. From the screen data creation device, screen data composed of part images showing the functional parts, address information for specifying devices in the PLC, and character string information made up of character strings associated with the devices in the PLC Screen data acquisition means to be acquired, operation screen display means for displaying the operation screen based on the screen data, and a PLC that changes the internal state of the PLC based on a user operation on the functional component in the operation screen Control means, voice data generation means for generating voice data based on the character string information, and based on the voice data Te, and an audio output means for outputting a sound in correspondence with the functional components in the operating display.

  The PLC display system according to the second aspect of the present invention is screen data for displaying an operation screen on which functional parts indicating the internal state of the PLC or functional parts for changing the internal state of the PLC are arranged based on a user operation. Screen data for generating screen data composed of a part image indicating the functional part, address information for specifying a device in the PLC, and character string information including a character string associated with the device in the PLC Generation means, operation screen display means for displaying the operation screen based on the screen data, PLC control means for changing the internal state of the PLC based on a user operation on the functional component in the operation screen, Based on the character string information, voice data generating means for generating voice data, and on the driving screen based on the voice data And an audio output means for outputting a sound in correspondence with the functional parts.

  According to such a configuration, since voice output is performed in association with the functional components in the operation screen, the user can easily identify the internal state of the PLC and the contents of the state change. In addition, since the voice data is generated based on the character string information constituting the screen data, the user does not need to create the character data for voice output separately from the screen data. Furthermore, since the audio output based on the audio data is performed in association with the functional component, the audio data can be reproduced at an appropriate timing without the user specifying the timing for reproducing the audio data.

  In addition to the above configuration, the PLC display system according to the third aspect of the present invention is configured such that the audio output means outputs audio at a timing determined in advance according to the component type of the functional component. According to such a configuration, audio data can be reproduced in accordance with the operating conditions of the functional component.

  In the PLC display system according to the fourth aspect of the present invention, in addition to the above configuration, the audio output means reproduces audio data corresponding to character string information associated with the functional component at a timing when the functional component is operated. Configured as follows. According to such a configuration, since the audio data is reproduced at the timing when the functional component is operated, an erroneous operation can be prevented.

  In the PLC display system according to the fifth aspect of the present invention, in addition to the above configuration, the voice output means reproduces voice data corresponding to character string information associated with the internal state at a timing when the internal state of the PLC changes. Configured as follows. According to such a configuration, it is possible to easily identify the contents of the change in the internal state.

  A PLC display system according to a sixth aspect of the present invention includes a character string processing unit that adds a character string for voice output to the character string of the character string information in addition to the above-described configuration. The added character string information is converted into voice data. According to such a configuration, since the character string for voice output is added to the character string information associated with the device in the PLC, the content of the voice data can be adjusted to an expression suitable for voice output.

  A PLC display system according to a seventh aspect of the present invention includes a term type switching unit that switches a type of a term used for the character string information in addition to the above configuration, and the screen data generation unit includes two or more characters having different term types. Screen data including functional parts associated with column information is generated, the operation screen display means displays character string information corresponding to the current term type in association with the functional parts, and the voice output means includes: The audio data corresponding to the character string information corresponding to the current term type is configured to be reproduced. According to such a configuration, the type of the term used for the voice data can be switched only by switching the type of the term used for the character string information.

  A PLC display system according to an eighth aspect of the present invention includes language type switching means for switching the type of language used for the character string information in addition to the above configuration, and the screen data generation means includes two or more characters having different language types. Screen data including functional parts associated with column information is generated, the operation screen display means displays character string information corresponding to the current language type in association with functional parts, and the voice output means includes: The audio data corresponding to the character string information corresponding to the current language type is reproduced. According to such a configuration, the language type used for the voice data can be switched by simply switching the language type used for the character string information.

  A PLC display system according to a ninth aspect of the present invention, in addition to the above configuration, a character string table that holds two or more character string information composed of different character strings and two or more character string information having different language types in association with each other. And a voice conversion database for each language type for converting the character string information into voice data, and the operation screen display means refers to the character string table to obtain character string information corresponding to the current language type. The voice data generating means is configured to convert the character string information in the character string table into voice data based on the voice conversion database corresponding to the current language type. According to such a configuration, it is not necessary to store font data of a plurality of characters having different language types for each functional component. Moreover, since the character string information is converted into voice data using the voice conversion database corresponding to the current language type, voice data corresponding to the language characteristics can be obtained.

  A PLC display system according to a tenth aspect of the present invention includes, in addition to the above configuration, a translation dictionary for converting character string information between different language types, and character string information of the first language type by referring to the translation dictionary. A character string table generating unit that generates the character string table by converting into two language types is provided. According to such a configuration, the user can easily create the character string table because the character string information of the second language type is automatically generated only by creating the character string information of the first language type. Can do.

  A PLC display system according to an eleventh aspect of the present invention includes, in addition to the above configuration, an error monitoring unit that displays an error message including a character string indicating the occurrence of an abnormality on the operation screen based on the internal state of the PLC. The generating means converts the error message into voice data, and the voice output means is configured to reproduce the voice data corresponding to the error message at a timing when the error message is displayed. According to such a configuration, since the audio data is reproduced in accordance with the display of the error message indicating the occurrence of abnormality, the user can easily recognize the occurrence of the error and the error content.

  According to the present invention, it is not necessary for a user to create character data for voice output separately from screen data, and even if the user does not specify the timing for reproducing the voice data, the voice data can be appropriately timed. Therefore, it is possible to provide a programmable display device and a PLC display system that allow the user to easily use the audio playback function.

It is the system figure which showed one structural example of the PLC display system 1 by Embodiment 1 of this invention. It is the block diagram which showed an example of the function structure in the screen data creation apparatus 20 of FIG. It is the figure which showed an example of operation | movement of the screen data creation apparatus 20 of FIG. 1, and the screen data 5 and the component setting information 5a are shown. It is the figure which showed an example of operation | movement of the screen data creation apparatus 20 of FIG. 1, and the system setting information 6, the error monitoring information 6a, and the device control information 6b are shown. It is the figure which showed an example of the character string table 7a which comprises the character string information. FIG. 3 is a block diagram illustrating a configuration example of an audio data generation unit 29 in FIG. 2. It is the block diagram which showed an example of the function structure in the programmable display 10 of FIG. It is the figure which showed an example of operation | movement of the programmable display 10 of FIG. 7, and the driving | operation screen 9 displayed on the touch panel 11 is shown. It is the figure which showed an example of operation | movement of the programmable display 10 of FIG. 7, and the mode of the audio | voice output at the time of operating the switch component 91 in the driving | operation screen 9 is shown. FIG. 6 is a block diagram showing another configuration example of the screen data creation device 20 of FIG. 2, in which a system setting unit 27 is shown. It is the block diagram which showed one structural example of the programmable display 10 by Embodiment 2 of this invention.

Embodiment 1 FIG.
<PLC display system 1>
FIG. 1 is a system diagram showing a configuration example of a PLC display system 1 according to Embodiment 1 of the present invention. In the figure, a programmable display 10 is shown that is connected to the PLC 2 via the communication cable 3 and is provided with a cable connection portion 12 on the front surface of the housing. A speaker 13 is detachably connected to the programmable display 10 via a transmission cable 13a.

  The PLC display system 1 includes a programmable display 10 and a screen data creation device 20 and is a display system that monitors the internal state of the PLC 2 using the programmable display 10.

  For example, the programmable display 10 is connected to the PLC 2 via a LAN (local area network) such as Ethernet (registered trademark), and the TCP / IP protocol is used for communication control. The PLC 2 is a control device that controls input / output devices such as a sensor device and a drive device based on a programmable control program.

  The screen data creation device 20 is a terminal device that creates screen data for displaying an operation screen based on a user operation, and is connected to the programmable display 10 via the communication cable 4. For example, the screen data creation device 20 is configured by a personal computer in which an application program for a display is installed, and includes a display unit 21, a keyboard 22, and a mouse 23.

  The screen data is a control program for controlling the programmable display 10. The screen data created by the screen data creation device 20 is transmitted to the programmable display 10.

  The programmable display 10 is a display device that is connected to the PLC 2 and displays the internal state of the PLC 2 based on the screen data acquired from the screen data creation device 20. Various functional components associated with the devices in the PLC 2 are provided. The arranged operation screen is displayed.

  The operation screen is a user drawing screen for displaying the internal state of the PLC 2 and changing the internal state of the PLC 2 according to a user operation. Devices in the PLC 2 include a bit device such as a relay circuit and a word device such as a data memory. For example, the operation screen includes a switch component and a lamp component associated with the bit device, and a meter component associated with the word device.

  Further, the programmable display 10 is provided with a touch panel 11 and a cable connection portion 12 on the front surface of a rectangular parallelepiped housing. The touch panel 11 includes a display device having a display screen and an operation detection device that detects a touch operation on the display screen. The display screen of the touch panel 11 has a horizontally long rectangular shape. For example, the display device is an LCD (liquid crystal display). The operation detection device is a touch pad sensor such as a capacitance type or a resistance film type.

  A communication cable 4 for transmitting screen data is detachably connected to the cable connection unit 12. For example, the screen data creation device 20 is connected to the programmable display 10 by connecting one end of the communication cable 4 to the cable connection unit 12. The communication cable 4 is a USB (Universal Serial Bus) cable. The speaker 13 is a sound output device that outputs sound by converting an electrical signal into sound wave vibration.

  In the PLC display system 1, the operation content and the content of the state change are notified by voice at the timing when the switch component in the operation screen is operated or when the internal state of the PLC 2 changes. In addition, voice data for notification is created using character string information constituting the screen data.

<Screen data creation device 20>
FIG. 2 is a block diagram showing an example of a functional configuration in the screen data creation device 20 of FIG. In the figure, a screen data creation device 20 including a voice data generation unit 29 that generates voice data for notification from character string information created as project data is shown. The screen data creation device 20 includes a display unit 21, an operation unit 24, an edit screen display unit 25, a screen data generation unit 26, a system setting unit 27, a project data storage unit 28, an audio data generation unit 29, and a character string processing unit 30. And the communication unit 31.

  The operation unit 24 generates an operation signal based on the operation of the keyboard 22 or the mouse 23 and outputs the operation signal to the edit screen display unit 25, the screen data generation unit 26, and the system setting unit 27. The edit screen display unit 25 displays an edit screen for creating screen data on the display unit 21 based on a user operation.

  The screen data generation unit 26 includes a component setting unit 261, a component image generation unit 262, and a character string information generation unit 263, and screen data 5 for displaying an operation screen on which functional components are arranged based on a user operation. Is generated and stored in the project data storage unit 28. The screen data 5 is composed of two or more component setting information each associated with a functional component.

  The component setting unit 261 specifies an operation condition that defines the operation of the functional component, address information for specifying a device in the PLC 2, and a position of the functional component in the operation screen. The operation condition includes a component type, an operation type, and various threshold values. The address information includes a memory address or device name for specifying a write bit or a reference bit. The component image generation unit 262 generates a component image to be displayed as a functional component. The component image is a display object composed of image data.

  The character string information generation unit 263 generates character string information including character strings associated with devices in the PLC 2. The character string information includes character information used in a control program of the PLC 2, for example, a ladder program, and character information used for display on the programmable display 10.

  The character information used in the PLC2 control program consists of character strings assigned to the PLC2 bit device and word device. When the bit device or word device is used in the PLC2 control program, these devices are assigned device numbers. This is not only for identifying by the function, but also for expressing the function to be assigned to the device. Such character information can be arbitrarily specified by the user, and is called a device comment in the PLC-related field.

  On the other hand, the character information used for display on the programmable display 10 is composed of a character string for screen display in association with a bit device or a word device of the PLC 2 and can be arbitrarily designated by the user. The component setting information is composed of operating conditions, arrangement information indicating a position in the operation screen, a component image, and the character string information described above.

  The system setting unit 27 generates system setting information 6 for defining the operation of the programmable display 10 and character string information 7 including a character string to be displayed on the operation screen based on a user operation, and the project The data is stored in the data storage unit 28.

  The audio data generation unit 29 reads the screen data 5 from the project data storage unit 28, generates audio data 8 for reproduction based on the character string information associated with the screen data 5, and stores the data in the project data storage unit 28. To store. The voice data generation unit 29 reads the character string information 7 from the project data storage unit 28, converts the character string constituting the character string information 7 into the voice data 8, and stores it in the project data storage unit 28.

  The project data storage unit 28 stores one or more screen data 5, system setting information 6, character string information 7, and audio data 8. Here, a group of data composed of screen data 5, system setting information 6, character string information 7, and audio data 8 associated with each other is referred to as project data.

  The character string processing unit 30 reads the screen data 5 from the project data storage unit 28, and adjusts the notification content to a character string of character string information associated with the screen data 5 in order to adjust the notification content to an expression suitable for voice output. Appends a character string for output. Further, the character string processing unit 30 reads the character string information 7 from the project data storage unit 28 and adds a character string for voice output to the character string constituting the character string information 7.

  Specifically, a voice output character string is added to the beginning or end of the character string. For example, the character string “I will start” is added to the character string “start operation”, and “start operation” is held as character string information for voice output.

  Such a character string for voice output is added to all display character strings held as project data in the project data storage unit 28. Further, the character string to be added is individually set for each functional component. Alternatively, the character string processing unit 30 may be configured to generate a voice output character string by editing the display character string based on a user operation.

  The voice data generation unit 29 converts the character string information to which the voice output character string is added into the voice data 8. The communication unit 31 communicates with the programmable display 10 and transmits the project data in the project data storage unit 28 to the programmable display 10.

<Screen data 5>
FIG. 3 is a diagram showing an example of the operation of the screen data creation device 20 of FIG. 1. In FIG. 3, (a) shows screen data 5, and (b) shows component setting information 5a. It is shown. Further, (c) shows component setting information 5a for the switch component and the lamp component, respectively.

  The screen data 5 is composed of two or more component setting information 5a. When the operation screen is composed of “functional component 1”, “functional component 2”, “functional component 3”,..., Component setting information 5 a for each functional component is held as one screen data 5.

  The component setting information 5a includes operation conditions, address information, component images, arrangement information, and character string information. For example, in the case of a switch component, the component type “switch”, the operation type “bit set”, the write bit “relay 100”, the display figure “component 001”, the display coordinates (x, y), the nameplate type “direct designation”, the nameplate The character string “operation start”, the nameplate font “Gothic”, and the voice data “voice 001” are held as one component setting information 5a.

  This switch component is a switch for setting a bit of “relay 100”, and a component image associated with “component 001” is arranged at (x, y) in the operation screen. In addition, the nameplate character string “start operation” is displayed superimposed on the component image. The font of the nameplate character string “start operation” is Gothic. The voice data 8 of “voice 001” is created based on the nameplate character string “start of operation”, and is held in association with the component setting information 5a. The operation types of the switch parts include a word set for setting a word, screen switching for switching the operation screen, and window display for displaying a window screen on the operation screen.

  In the case of a lamp component, the component type “lamp”, function name “lamp”, reference bit “relay 90”, display figure “component 002”, display coordinates (x, y), nameplate type “table”, nameplate character string “No. 4”, nameplate font “Mincho” and voice data “voice 002” are held as one component setting information 5a.

  This lamp component is a lamp that is turned on based on the bit state of “relay 90”, and a component image associated with “component 002” is arranged at (x, y) in the operation screen. In the character string table described later, the character string ID No. Predetermined character string information is held in association with 4. This character string information is displayed superimposed on the component image. The font of the character string information is Mincho. The voice data 8 of “voice 002” is created based on the character string information and is held in association with the component setting information 5a.

  In this manner, the character string information may be held as component setting information 5a constituting the screen data 5 or may be held as a character string table. The audio data 8 is created based on such character string information, and is held in association with the component setting information 5a constituting the screen data 5.

<System setting information 6>
FIG. 4 is a diagram showing an example of the operation of the screen data creation device 20 of FIG. 1. In FIG. 4, (a) shows system setting information 6 and (b) shows error monitoring information 6a. In addition, device control information 6b is shown. Further, (c) shows a language setting table 6e.

  The system setting information 6 includes two or more error monitoring information 6a, device control information 6b, language setting information 6c, and term setting information 6d. The error monitoring information 6a is setting information for providing an error monitoring function of monitoring the internal state of the PLC 2 and notifying the user of the occurrence of an abnormality.

  The device control information 6b is setting information for providing a device control function of monitoring a device in the PLC 2 and performing output control according to a change in the state of the device. The language setting information 6c is setting information for designating the type of language used for the character string information. The term setting information 6d is setting information for designating the type of term used for the character string information.

  For example, the error monitoring information 6a includes the function name “error monitoring”, the comment “system 1”, the error ID “001”, the monitoring device “data memory 10”, the number of monitoring points “32”, the sound reproduction “Yes”, and the reproduction method “ Consists of individual monitoring points. This error monitoring information 6a is identified by the error ID “001”, and 32 data memories starting from “data memory 10” are monitored as devices to be monitored. When an abnormality occurs, a comment “system 1” consisting of a character string is displayed as an error message on the operation screen, and voice data 8 automatically generated from the comment “system 1” is reproduced. The audio data 8 is reproduced individually for each monitoring point.

  The device control information 6b includes a function name “device control”, a control ID “No. 2”, a monitoring device “relay 3”, a trigger type “rise”, an operation type “audio playback”, and audio data “audio 003”. The This device control information 6b is identified by the control ID “No. 2”, and “relay 3” is monitored as a monitoring target device. If the rise of “relay 3” is detected, the audio data 8 of “audio 003” is reproduced. In addition to sound reproduction, device control operation types include screen switching for switching the operation screen, window display for displaying the window screen on the operation screen, and bit set for setting the monitoring target bit.

  The language setting table 6e is a table that holds a language ID in association with a language type. In the language setting table 6e, the language IDs 0 to ID2 are associated with the language types “Japanese”, “English”, and “Chinese”, respectively. In the language setting information 6c, the language type is specified by designating any one of the language IDs 0 to ID2.

  Each component setting information 5a of the screen data 5 includes or is associated with two or more pieces of character string information having different language types and term types. That is, depending on the functional component, two or more pieces of character string information having different language types and term types are associated. For example, character strings “start operation” and “start” having different term types are associated with the same switch component. Each screen data 5 of the project data is associated with two or more voice data 8 automatically generated from character string information having different language types and term types.

  The error monitoring information 6a of the system setting information 6 includes two or more error messages having different language types and term types, and two or more audio data 8 automatically generated from these error messages are associated with each other.

<Character string table 7a>
FIG. 5 is a diagram showing an example of a character string table 7 a constituting the character string information 7. In this figure, the character string information of the language ID 2 is omitted. The character string table 7a is a common character string database used for displaying functional parts and monitoring errors, and includes two or more character string information composed of different character strings and two or more character string information having different language types. Hold in association with each other.

  In this character string table 7a, the character string ID No. 0-No. 5, “operation start”, “operation abnormality”, “compression”, “air cooling”, “during operation”, and “temperature overheating” are associated with the character string information of language ID 0 of the language type. The character string ID No. 0-No. 5, “Start”, “Error”, “Pressure”, “Air Cooling”, “In operation”, and “Overheating” are associated with the character string information of language ID 1 of the language type.

  The character string information 7 includes such a character string table 7a, an error message associated with the error monitoring information 6a of the system setting information 6, and character string information associated with the device control information 6b. The error message of the error monitoring information 6a and the character string information of the device control information 6b are also configured in the same manner as the character string table 7a, and are managed by the character string ID and the language ID.

<Audio data generation unit 29>
FIG. 6 is a block diagram illustrating a configuration example of the audio data generation unit 29 of FIG. The voice data generation unit 29 includes a Japanese voice DB (database) 291, an English voice DB 292, a Chinese voice DB 293, and a voice synthesis unit 294.

  The Japanese voice DB 291 is a voice conversion database for converting a Japanese character string into Japanese voice. For example, a character string is divided into phrases, words, syllables, etc., and speech segments are held in association with these character segments.

  The English speech DB 292 is a speech conversion database for converting a character string in English notation (spelling) into English speech (pronunciation). The Chinese voice DB 293 is a voice conversion database for converting a Chinese character string into a Chinese voice.

  The speech synthesis unit 294 converts the target character string into speech data by performing speech synthesis processing using the speech conversion database of the language type specified by the language setting information 6c. The voice synthesis process is a process for synthesizing a human voice to generate a synthesized voice, and is performed based on voice setting information including various voice synthesis parameters. The speech synthesis parameters include sound pitch, intonation, volume, sound quality, number of quantization bits, sampling rate, and accent position.

  For example, the voice data generated by the voice synthesizer 294 includes a voice data ID for identifying voice data, waveform data indicating a voice waveform, a restoration character string, and a voice synthesis parameter value. The

  The conversion to audio data will be described with a specific example. For example, when the character string “15” is converted into Japanese speech, the speech is pronounced “jogo”. On the other hand, when the character string “15” is converted into English speech, “Fifteen” is pronounced. Further, when the character string “king” is converted into Japanese speech, the speech is pronounced as “KEI NG”. On the other hand, when the character string “king” is converted into English speech, “king” is pronounced. In this way, since there is a language characteristic in the conversion to voice data, a voice conversion database corresponding to the language type is prepared, and the voice conversion database is switched according to the current language type, so that it corresponds to the language characteristic. Audio data can be obtained.

<Programmable display 10>
FIG. 7 is a block diagram showing an example of a functional configuration in the programmable display 10 of FIG. The programmable display 10 includes a screen data acquisition unit 101, a project data storage unit 102, an operation screen display unit 103, an operation unit 104, a term type switching unit 105, a language type switching unit 106, a PLC control unit 107, and a PLC communication unit 108. The voice output control unit 110 and the error monitoring unit 111 are configured.

  The screen data acquisition unit 101 acquires screen data 5 including the component setting information 5 a from the screen data creation device 20. The screen data acquisition unit 101 communicates with the screen data creation device 20 to obtain project data including a plurality of screen data 5, system setting information 6, character string information 7, and audio data 8 from the screen data creation device 20. And stored in the project data storage unit 102.

  The operation screen display unit 103 displays an operation screen on which functional parts such as switch parts are arranged on the touch panel 11 based on the screen data 5 in the project data storage unit 102. The operation unit 104 generates an operation signal based on the touch operation on the touch panel 11 and outputs the operation signal to the PLC control unit 107. The PLC communication unit 108 performs communication with the PLC 2.

  The PLC control unit 107 changes the internal state of the PLC 2 based on a user operation on the functional component in the operation screen. Specifically, a control command for changing the internal state of the PLC 2 is generated based on a touch operation on the switch component, and is transmitted to the PLC 2 via the PLC communication unit 108.

  Further, the PLC control unit 107 acquires a device state from the PLC 2 based on the screen data 5 in the project data storage unit 102. On the lamp part or meter part in the operation screen, the device state acquired from the PLC 2 via the PLC communication unit 108 is displayed.

  The audio output control unit 110 outputs audio from the speaker 13 in association with the functional components in the operation screen based on the audio data 8 in the project data storage unit 102. The audio output control unit 110 outputs audio at a timing determined in advance according to the component type of the functional component.

  For example, the audio output control unit 110 reproduces the audio data 8 corresponding to the character string information associated with the switch component at the timing when the switch component is operated. Also, the voice output control unit 110 reproduces the voice data 8 corresponding to the character string information associated with the internal state at the timing when the internal state of the PLC 2 changes.

  The term type switching unit 105 switches the term type used for the character string information, and updates the term setting information 6 d of the system setting information 6. For example, the term type is switched by the device state of the PLC 2 or the operation of the switch component. The operation screen display unit 103 displays character string information corresponding to the current term type in association with the functional component. Further, the audio output control unit 110 reproduces the audio data 8 corresponding to the character string information corresponding to the current term type.

  The language type switching unit 106 switches the language type used for the character string information and updates the language setting information 6c of the system setting information 6. For example, the language type is switched by the device state of the PLC 2 or the operation of the switch component. The operation screen display unit 103 displays character string information corresponding to the current language type in association with the functional component. Further, the voice output control unit 110 plays back the voice data 8 corresponding to the character string information corresponding to the current language type.

  The error monitoring unit 111 displays an error message including a character string indicating the occurrence of an abnormality on the operation screen based on the internal state of the PLC 2. Specifically, the device status is acquired from the PLC 2 based on the error monitoring information 6a of the system setting information 6, and an operation of displaying an error message on the operation screen is performed based on the device status. The audio output control unit 110 reproduces the audio data 8 corresponding to the error message at the timing when the error message is displayed.

<Operation screen 9>
8 and 9 are diagrams showing an example of the operation of the programmable display 10 of FIG. FIG. 8 shows an operation screen 9 displayed on the touch panel 11. FIG. 9 shows a state in which the audio data 8 corresponding to the character string “start operation” is reproduced from the speaker 13 of the programmable display 10 when the switch component 91 in the operation screen 9 is operated.

  On the operation screen 9, one switch component 91 that changes the internal state of the PLC 2 according to a user operation and two lamp components 92 that display the internal state of the PLC 2 are arranged.

  By touching the switch part component 91 with a finger, the internal state of the PLC 2 is rewritten, and the audio data 8 corresponding to the character string “operation start” is reproduced from the speaker 13. That is, at the timing when the switch component 91 is operated, the character string “start operation” is read out by synthesized speech.

  Character strings “operation start” and “activation” having different term types are associated with the switch component 91, term ID = 0 for identifying the term type is associated with “operation start”, and term ID = 1 is associated with “activation”. Is associated with the switch component 91 in the state of the term ID = 0, and the character string “operation start” is read out by operating the switch component 91.

  On the other hand, if the term type is switched to the term ID = 1, the character string “activation” is displayed in association with the switch component 91, and the character string “activation” is read out by operating the switch component 91. By configuring in this way, the type of the term used for the audio data 8 can be switched only by switching the type of the term used for the character string information.

  When the character strings “operation start” and “Start” having different language types are associated with the switch component 91, the character string “operation start” is displayed in association with the switch component 91 in the state of language ID = 0. By operating the switch component 91, the character string “start operation” is read out.

  On the other hand, if the language type is switched to language ID = 1, the character string “Start” is displayed in association with the switch component 91, and the character string “Start” is read out by operating the switch component 91. With this configuration, it is possible to switch the language type used for the audio data 8 only by switching the language type used for the character string information.

  According to the present embodiment, since voice output is performed in association with the functional components in the operation screen 9, the user can easily identify the internal state of the PLC 2 and the contents of the state change. Further, since the voice data 8 is generated based on the character string information constituting the screen data 5, the user does not need to create the character data for voice output separately from the screen data 5. Furthermore, since the audio output based on the audio data 8 is performed in association with the functional components, the audio data 8 can be reproduced at an appropriate timing without the user specifying the timing for reproducing the audio data 8.

  In the present embodiment, the screen data creation device 20 has a character string table 7a in which two or more character string information composed of different character strings and two or more character string information having different language types are stored in association with each other. However, the present invention can also be applied to an apparatus that automatically generates such a character string table 7a.

<System setting unit 27>
FIG. 10 is a block diagram showing another configuration example of the screen data creation device 20 of FIG. 2, and shows an example of the system setting unit 27. The system setting unit 27 includes a translation dictionary DB 271 and a character string table generating unit 272, and completes the character string table 7a by converting the character string information of the first language type into the second language type.

  The translation dictionary DB 271 is a language database for converting character string information between different language types. The character string table generation unit 272 generates the character string table 7a by referring to the translation dictionary DB 271 and converting the target character string of the first language type into the second language type.

  For example, the character string table 7a is associated with the language ID = 0 (Japanese), and the character strings “operation start”, “operation abnormality”, “compression”, “air cooling”, “during operation”, and “temperature overheating”. No character string is set for language ID = 1 (English) or language ID = 2 (Chinese). In this state, the character string table generation unit 272 converts each Japanese target character string into English or Chinese based on the translation dictionary DB 271 corresponding to the language setting information 6c, and completes the character string table 7a.

  With this configuration, the user can easily create the character string table 7a because the character string information of the second language type is automatically generated only by creating the character string information of the first language type. be able to.

Embodiment 2. FIG.
In the first embodiment, an example in which the screen data creation device 20 includes the audio data generation unit 29 has been described. On the other hand, this Embodiment demonstrates the case where the programmable display 10 is provided with an audio | voice data production | generation part.

  FIG. 11 is a block diagram showing a configuration example of the programmable display 10 according to the second embodiment of the present invention. The programmable display 10 is different from the programmable display 10 of FIG. 7 in that an audio data generation unit 112 is provided.

  The audio data generation unit 112 reads the screen data 5 from the project data storage unit 102, generates audio data 8 for reproduction based on the character string information associated with the screen data 5, and stores in the project data storage unit 102. To store. The voice data generation unit 112 reads the character string information 7 from the project data storage unit 102, converts the character string constituting the character string information 7 into the voice data 8, and stores the voice data 8 in the project data storage unit 102.

  The project data storage unit 102 holds the audio data 8 generated by the audio data generation unit 112 in association with the screen data 5 and the system setting information 6. According to the present embodiment, since the audio data 8 is not included in the project data transmitted from the screen data creation device 20 to the programmable display device 10, an increase in communication load can be suppressed. In addition, by configuring the audio data generation unit 112 to generate the audio data 8 at the timing when the functional component is operated or when the internal state of the PLC 2 changes, it is not necessary to hold the audio data 8, and the programmable display An increase in the memory capacity of the container 10 can be suppressed.

  In Embodiments 1 and 2, an example in which the programmable display 10 and the screen data creation device 20 are connected by a USB cable has been described. However, the present invention is applicable to the programmable display 10 and the screen data creation device 20. However, the connection form is not limited to this. For example, the programmable display 10 may be configured to communicate with the screen data creation device 20 via a communication network shared with the PLC 2.

  Moreover, Embodiment 1 demonstrated the example in the case of performing a user alert | report by carrying out the voice synthesis | combination of the character string for a display for displaying on the driving | operation screen 9. FIG. In the case where the programmable display 10 has a history function of storing an error occurrence time and the contents thereof, the present invention can also be applied to a device that performs user notification using a character string for history display.

  Moreover, although Embodiment 1 demonstrated the example in case the speaker 13 is connected to the programmable display 10 via the transmission cable 13a, this invention is applicable also when the programmable display 10 incorporates the speaker 13. FIG. Can be applied.

1 PLC display system 2 PLC
3,4 Communication cable 10 Programmable display 11 Touch panel 12 Cable connection unit 13 Speaker 101 Screen data acquisition unit 102 Project data storage unit 103 Operation screen display unit 104 Operation unit 105 Term type switching unit 106 Language type switching unit 107 PLC control unit 108 PLC communication unit 110 Audio output control unit 111 Error monitoring unit 112 Audio data generation unit 20 Screen data creation device 21 Display unit 22 Keyboard 23 Mouse 24 Operation unit 25 Edit screen display unit 26 Screen data generation unit 27 System setting unit 271 Translation dictionary DB
272 Character string table generation unit 28 Project data storage unit 29 Voice data generation unit 291 Japanese voice DB
292 English Voice DB
293 Chinese Voice DB
294 Speech synthesis unit 30 Character string processing unit 31 Communication unit 5 Screen data 5a Component setting information 6 System setting information 6a Error monitoring information 6b Device control information 6c Language setting information 6d Term setting information 6e Language setting table 7 Character string information 7a Character string Table 8 Audio data 9 Operation screen 91 Switch part 92 Lamp part

Claims (11)

Screen data for displaying an operation screen on which a functional component that indicates the internal state of the PLC or a functional component that changes the internal state of the PLC in accordance with a user operation is arranged, and is a component image that indicates the functional component, in the PLC Screen data acquisition means for acquiring, from the screen data creation device, screen data composed of address information for specifying the device and character string information composed of character strings associated with devices in the PLC;
An operation screen display means for displaying the operation screen based on the screen data;
PLC control means for changing the internal state of the PLC based on a user operation on the functional component in the operation screen;
Voice data generation means for generating voice data based on the character string information;
A programmable display comprising: audio output means for outputting audio in association with the functional components in the operation screen based on the audio data. Screen data for displaying an operation screen on which a functional component indicating the internal state of the PLC or a functional component that changes the internal state of the PLC is arranged based on a user operation, the component image indicating the functional component, PLC Screen data generating means for generating screen data composed of address information for specifying a device in the device and character string information made up of a character string associated with the device in the PLC;
An operation screen display means for displaying the operation screen based on the screen data;
PLC control means for changing the internal state of the PLC based on a user operation on the functional component in the operation screen;
Voice data generation means for generating voice data based on the character string information;
A PLC display system comprising: audio output means for outputting audio in association with the functional parts in the operation screen based on the audio data.   3. The PLC display system according to claim 2, wherein the audio output means outputs audio at a timing determined in advance according to a component type of the functional component.   4. The PLC display system according to claim 3, wherein the voice output unit reproduces voice data corresponding to character string information associated with the functional component at a timing when the functional component is operated.   4. The PLC display system according to claim 3, wherein the voice output means reproduces voice data corresponding to character string information associated with the internal state at a timing when the internal state of the PLC changes. Character string processing means for adding a character string for voice output to the character string of the character string information,
6. The PLC display system according to claim 2, wherein the voice data generation unit converts character string information to which a character string is added into voice data. Comprising term type switching means for switching the type of term used for the character string information;
The screen data generating means generates screen data including functional parts associated with two or more character string information having different term types,
The operation screen display means displays the character string information corresponding to the current term type in association with the functional component,
7. The PLC display system according to claim 2, wherein the voice output unit reproduces voice data corresponding to character string information corresponding to a current term type. Language type switching means for switching the type of language used for the character string information;
The screen data generation means generates screen data including a functional component associated with two or more character string information of different language types,
The operation screen display means displays the character string information corresponding to the current language type in association with the functional component,
7. The PLC display system according to claim 2, wherein the voice output unit reproduces voice data corresponding to character string information corresponding to a current language type. A character string table that holds two or more pieces of character string information composed of different character strings and two or more pieces of character string information having different language types in association with each other;
A voice conversion database for each language type for converting character string information into voice data;
The operation screen display means displays character string information corresponding to the current language type with reference to the character string table,
9. The PLC display according to claim 8, wherein the voice data generation means converts character string information in the character string table into voice data based on the voice conversion database corresponding to a current language type. system. A translation dictionary for converting string information between different language types;
The character string table generating means for generating the character string table by converting the character string information of the first language type into the second language type with reference to the translation dictionary. PLC display system described in 1. Based on the internal state of the PLC, it comprises an error monitoring means for displaying an error message consisting of a character string indicating the occurrence of an abnormality on the operation screen,
The voice data generation means converts the error message into voice data,
11. The PLC display system according to claim 2, wherein the voice output unit reproduces voice data corresponding to the error message at a timing when the error message is displayed.

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