JP4878586B2 - Programmable display screen generation device and program thereof - Google Patents

Description

  The present invention relates to an apparatus for generating a screen for a programmable display.

  In the programmable controller (PLC) system, the programmable display is connected to the controller main body (PLC main body) and displays the operation status of various control target devices connected to the controller main body, or to each device. It is known as an operation type display having a function of displaying an input operation screen for giving a control instruction and receiving an input. In general, a programmable display has a graphic display function. Various parts such as switches, graphs, and meters are arranged on the screen to display graphically with these various parts, and accept input operations using a touch panel. ing.

  Among such graphical displays, especially for the display of parts such as graphs and meters, the above-mentioned data (measurement values by various sensors, etc.) indicating the operation status of various controlled devices are periodically transmitted from the controller body. (For example, every second). Each of these measured values is stored in a memory in the controller, for example, and is updated regularly (for example, every second). Therefore, each part arranged on such a screen for displaying a measured value or the like is associated with an address of the memory where the measured value displayed by the part is stored / updated. .

  Conventionally, when reusing such parts, or when changing the memory address assignments without changing the programmable display screen itself due to the update of the PLC body, etc., the batch address replacement function is used. In general, the address of each component is changed while the user confirms.

  The address batch replacement function is one of the functions of the screen drawing software in a support device (such as a personal computer) having screen drawing software for a programmable display. The user (programmer, etc.) operates the support device (computer, etc.) to create a desired screen, and when assigning memory addresses for each part on the created screen, Then, the above address batch replacement function is used.

  The created screen data is downloaded from a support device (such as a personal computer) to a programmable display. The screen data includes information on each component arranged on the screen and information on the memory address assigned to each component. Thus, the programmable display displays this screen, acquires sensor measurement data, for example, from the memory of the PLC main body (controller) according to the memory address allocation information, and displays the sensor measurement data, etc. on the corresponding parts. Etc. are executed.

  For example, the example shown in FIG. 7 shows an example in which the addresses of five components (graph, numerical value (current value), numerical value (maximum value), numerical value (minimum value), operating state) are collectively changed. In this example, when the address is changed, the user simply sets an arbitrary start address = D3000, and by referring to a table or the like that stores a setting rule (not shown), the above-described parts before the change are shown. Addresses D100, D100, D200, D300, and D150 are collectively changed to addresses D3000, D3000, D3100, D3200, and D3050, respectively.

With regard to such a conventional technique, for example, in the technique described in Patent Document 1, when the I / O address setting unit sets an address corresponding to one part position coordinate of the component placement unit as a head address, the remaining part positions Coordinate components are allocated in order from the address next to the start address and stored in the storage unit, and are allocated to the I / O address of the PLC storage unit via the communication unit as the addresses of the components arranged in the component arrangement unit. .
JP 2001-331206 A

When the address batch replacement function is used as in the conventional case, the following problems occur.
For example, if there is an address that does not need to be changed because it is used as a fixed address, such as the address corresponding to the “operating state” shown in FIG. There was a problem that work to correct the address indicated (return to a fixed address) occurred. In the example shown in FIG. 7, since the address corresponding to the operating state becomes D3050 by the batch conversion function, it is necessary for the user to manually return it to the original address D150.

  An object of the present invention relates to a screen display device for a programmable display, and in particular for a programmable display that can replace the allocation addresses of a plurality of components at once and eliminates the need for correction work by a user when changing the address allocation of components on the screen. It is to provide a screen generation device and the like.

  The screen display device for a programmable display according to the present invention includes an address allocation table for storing a memory address to be allocated for each component of the component group on the screen for the programmable display, and an address offset for each component of the arbitrary component group. A setting means for setting a value or a real address value and registering the setting contents in an address setting table; and when changing the memory address of each component of the component group, an arbitrary start address is input, and the address When the address offset value is registered for each component with reference to the setting table, a new memory address is obtained based on the head address and the address offset value, and the actual address value is registered. If the new memory address is used, the real address value is set as a new memory address. And an address block replacement means for updating the memory address allocation table.

  According to the apparatus having the above configuration, the address is automatically determined based on the start address only for the part for which the address offset value is registered, and the start address for the part that does not need to be changed (part whose address is fixed). Since a preset address value is always applied regardless of the user, there is no need for the user to correct the address.

  According to the programmable display screen generation apparatus and the like of the present invention, it is related to the programmable display screen generation apparatus, and in particular, when changing the address allocation of the parts on the screen, the allocation addresses of a plurality of parts can be collectively replaced by the user. No correction work is required.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a schematic configuration diagram of the entire PLC system according to the present method.
The PLC (programmable controller) system shown in FIG. 1 includes a programmable display 1, a PC (personal computer) 5, an external device 3, and the like. The programmable display 1 is connected to the PC 5 by an arbitrary communication line 2 and is connected to the external device 3 by an arbitrary communication line 6. The external device 3 is, for example, a controller main body (PLC main body).

The PC 5 stores programmable display screen design software 4. Thus, the PC 5 may function as a programmable display screen generation device.
This method is related to the drawing software 4 for the programmable display. That is, by executing the programmable display screen design software 4, a screen for creating a screen for a programmable display (hereinafter referred to as a screen display screen) is displayed on a display (not shown) of the PC 5. A screen for a desired programmable display is created on the screen.

  As described above, this screen is formed by arranging a plurality of arbitrary components, and the programmable display drawing software 4 further has a function of allocating the address to each component. In the case of reusing an already existing component, this address assignment function has been the above-described batch replacement function in the past, but this method has the function described below.

  That is, the address assignment function of the programmable display screen design software 4 of this method generally replaces only addresses that need to be changed, and excludes the fixed addresses and the like from batch replacement. This avoids a situation where even a fixed address is changed by batch replacement, eliminates the need for the user to perform extra correction work, and reduces the user's trouble. Of course, since the address allocation according to a predetermined rule is performed from the head address, the address change can be facilitated. Hereinafter, a detailed description will be given with reference to a specific example shown in FIG.

  Note that, from the above description, the processing and functions described below are naturally realized by the PC (personal computer) 5. That is, it is realized by a CPU (not shown) included in the PC (personal computer) 5 reading and executing a predetermined application program stored in a storage device (hard disk or the like) not shown.

FIG. 2A is a display example of parts to be changed or reused.
The illustrated component includes a graph 11 that graphically displays a current value of an arbitrary measuring instrument, and areas 12 to 15 that numerically display various data related to the measuring instrument. There are four types of numerical displays: current value, maximum value, minimum value, and operating state. Hereinafter, a numerical value (current value) 13, a numerical value (maximum value) 14, a numerical value (minimum value) 15, and an operating state 12 are described.

  Since the graph 11 and the numerical value (current value) 13 are assigned addresses for storing the current values of the arbitrary measuring instruments, the same address (for example, the address D100 shown in the figure) is assigned to both. Similarly, the numerical value (maximum value) 14, the numerical value (minimum value) 15, and the operating state 12 are assigned addresses D200, D300, and D150, respectively. Here, the address D150 corresponding to the operating state 12 is the above-mentioned fixed address, and this address D150 should not be changed. These address assignments are managed by an address assignment table shown in FIG.

FIG. 2B is an address assignment table for each component shown in FIG.
The illustrated address allocation table 20 includes a component 21, an address 22, and the like (the “content” illustrated is shown for supplementary purposes and may be omitted).

  The component 21 stores information for identifying each component on the screen shown in FIG. This information may be the name of each component or the like, or may be a predetermined identification ID or the like of each component. The address 22 is an address assigned to each component. As described with reference to FIG. 2A, for example, the address D100 is assigned to the graph 11 and the numerical value (current value) 13.

  When the component shown in FIG. 2A is reused (or when the address assignment is changed by changing the PLC main body, etc.), the contents of the address assignment table 20 shown in FIG. 2B are changed. Become. The user is required to make in advance settings necessary to automatically execute this change process all at once. This setting will be described with reference to FIGS.

FIGS. 3A and 3B are examples of setting screens for allowing the user to input the above settings.
Each time the user designates a desired component, the user performs a desired setting on the setting screen for the designated component. As a method for specifying a setting target component, for example, the screen shown in FIG. 2A may be displayed, and a desired component may be selected and specified on this screen. For example, a component name list (not shown) may be displayed. May be selected, or another method may be used.

  On the illustrated setting screen, first, a setting type designation area 31 is displayed. In the setting type designation area 31, two choices of “memory table” and “PLC memory” are displayed by pull-down, and when “memory table” is selected in FIG. 3A, FIG. It shows a setting screen when “memory” is selected.

  First, when “memory table” is selected in the setting type designation area 31, as shown in FIG. The designation area 32 and the address offset designation area 33 are additionally displayed. The user then selects a desired memory table No. in each of the areas 32 and 33. Enter the address offset value.

  On the other hand, when “PLC memory” is selected in the setting type designation area 31, a PLC device name selection area 34 and an address input area 35 are additionally displayed as shown in FIG. Then, the user selects a desired device name (here, “D”) in the PLC device name selection area 34, and further inputs a desired address value in the address input area 34. Note that “device name + address value” is referred to as an actual address value.

The setting contents on the setting screen are registered in the address setting table 40 shown in FIG.
The address setting table 40 shown in FIG. 3C includes a component 41 and a designation method 42. The “content” shown in the figure is only shown for explaining the contents of the designation method 42 and does not exist in the actual data structure.

The component 41 stores information (name, identification ID, etc.) for identifying each component described above.
The designation method 42 stores the setting contents set on the setting screen. When the setting is made on the setting screen shown in FIG. And the address offset value are stored in the designation method 42. On the other hand, when the setting is made on the setting screen shown in FIG. 3B, the real address value is stored in the designation method 42.

  In the illustrated example, the graph, numerical value (current value), numerical value (maximum value), and numerical value (minimum value) are set on the setting screen shown in FIG. Are set on the setting screen shown in FIG.

Therefore, the graph, numerical value (current value), numerical value (maximum value), and numerical value (minimum value) designation method 42 are all shown in the memory table no. And the address offset value are stored. It should be noted that the graph and numerical value (current value) are assumed to have an address offset value of “0”. In this case, as shown in FIG. (Conversely speaking, when performing the process of determining the address with reference to the address setting table 40 later, if only the memory table No. is stored, the address offset value is' Interpreted as 0 ').

  The “content” shown in FIG. 3C indicates an address that is determined according to the content of the above-described specifying method 42 when processing for determining the address with reference to the address setting table 40 is performed later. It is. In this determination process, as will be described later, the user designates a desired start address. Since the address offset value of the graph and the numerical value (current value) is “0”, the start address is determined as these addresses as they are. Will be. Similarly, since the numerical value (maximum value) and numerical value (minimum value) address offset values are “100” and “200”, respectively, “start address + 100” and “start address + 200” are determined as these addresses. become.

  On the other hand, regarding the “operating state”, the actual address value (D150 in the illustrated example) input on the screen of FIG. 3B is determined as an address assigned to the “operating state” as it is. Become.

  Note that once the above setting is made at the beginning, the address of each component is automatically determined by simply inputting the top address every time it is necessary to change the address. .

Hereinafter, the address determination process using the address setting table 40 described above will be described.
In this process, as described above, the user designates a desired head address. In the example shown in FIG. 4A, the head address is set to D100 in the previous address assignment. Is set with the head address = D3000. The head address is also used to input the real address.

  For example, the head address input screen shown in FIG. 4B is displayed, and the user is allowed to input a desired head address on the head address input screen. Although the figure shows a state in which the previously set head address = D100 is displayed, this time the user sets the head address = D3000 as described above. Thereafter, when the user instructs execution of the automatic address determination process, the process shown in FIG. 5 is executed, so that the address allocation table 20 changes from the state shown in FIG. 2B to the state shown in FIG. It will be changed automatically.

In the automatic address determination process, each record in the address setting table 40 is sequentially referred to, and the process shown in FIG. 5 is executed for each record.
First, referring to the processing target designation method 42, the memory table No. Is stored (step S1). In the example shown in FIG. 3C, the memory table No. Is stored. Therefore, if the processing target record is a record related to a component other than the “operating state”, the determination in step S1 is YES, so the process proceeds to step S2. If the processing target record is “operating state”, the determination in step S1 is NO. Therefore, the process is terminated as it is, and the process moves to the process of the next record (although there is no next record in the example shown in FIG. 3C).

  As a result, the “operating state” address in the address allocation table 20 remains in the state shown in FIG. 2B and is not changed. Note that the present invention is not limited to this example. If the determination in step S1 is NO, the data of the processing target designation method 42 may be copied to the address 22 of the corresponding record in the address allocation table 20. Even in this case, the “operation state” address 22 remains D150 and is not changed.

On the other hand, when the process proceeds to step S2, the first address set in FIG. 4B is first acquired (step S2), and the address offset value in the processing target record specifying method 42 is added to the first address. Is added, and the calculated address is stored in the address 22 of the corresponding record in the address assignment table 20 (part name etc. is the same record as the process target record) (step S3).

  For example, taking a numerical value (minimum value) as an example, the address offset value is “200”, and the start address is D3000 as described above. Therefore, D3000 + 200 = D3200 is stored as shown in FIG. become.

  Note that the table 40 shown in FIG. The table is registered as a table No. 0. Although not particularly shown, the user can select any table No. Is input, the top address input screen of FIG. 4B is displayed. The process shown in FIG. 5 is executed for all records in the address setting table 40 of FIG.

  Note that in the setting process described with reference to FIG. Is not set. For example, the memory table No. (In this example, it is assumed that the table is a memory table No. 0 inputted with respect to a numerical value (minimum value)), so that the setting data relating to the “operating state” is also stored in the memory table as shown in FIG. No. It is stored in the 0 table.

  Note that the data in FIG. 3C and the processing in FIG. 5 described above are examples, and the present invention is not limited to this example. Basically, any method may be used as long as it can be identified whether the data stored in the designation method 42 of the address setting table 40 is an offset value or a memory address itself (real address). For example, in the example shown in FIG. 3C, the address offset value is only a numerical value such as '100' or '200', whereas the address itself is preceded by a numerical value such as 'D100'. 'Is present and can be identified by this.

  In addition, when the address assignment of each component is completed, the screen data including the address assignment information (address assignment table 20) is downloaded from the PC 5 to the programmable display 1 as described in the prior art.

FIG. 6 shows a hardware configuration of the PC 5 (computer).
7 includes a CPU 51, a memory 52, an input unit 53, an output unit 54, a storage unit 55, a recording medium driving unit 56, and a network connection unit 57, which are connected to a bus 58. It has become.

The CPU 51 is a central processing unit that controls the entire computer 50.
The memory 52 is a memory such as a RAM that temporarily stores a program or data stored in the storage unit 55 (or the portable recording medium 59) when executing arbitrary processing. The CPU 51 executes various processes using the program / data read out to the memory 52.

The output unit 54 is, for example, a display, and the input unit 53 is, for example, a keyboard, a mouse, or the like.
The network connection unit 57 is connected to an arbitrary network (for example, the communication line 2) and performs communication (command / data transmission / reception, etc.) with other information processing devices (programmable display 1 and other arbitrary computers). It is a structure for.

The storage unit 55 is, for example, a hard disk or the like, and stores an application program for causing the CPU 51 to execute the processing functions of the above-described programmable display drawing software 4 (the above-described various processes (including the process of the flowchart of FIG. 5)). ing. Data such as the address setting table 40 is also stored.

  The CPU 51 reads out and executes various programs stored in the storage unit 55, thereby realizing the various functions and processing of the above-described programmable display screen design software 4.

  Alternatively, the various programs / data stored in the storage unit 55 may be stored in the portable recording medium 59. In this case, the program / data stored in the portable recording medium 59 is read by the recording medium driving unit 56. The portable recording medium 59 is, for example, an FD (flexible disk) 59a, a CD-ROM 59b, a DVD, a magneto-optical disk, or the like.

  Alternatively, the program / data may be downloaded from another device via a network connected by the network connection unit 57. Or you may download further what was memorize | stored in the other external apparatus via the internet.

  In addition, the present invention can be configured not only as a portable storage medium recording a program for realizing the various processes of the present invention on a computer, but also as the program itself.

It is a schematic block diagram of the whole PLC system which concerns on this method. (A) is a display example of a component to be changed or reused, and (b) is an example of an address allocation table. (A), (b) is an example on a setting screen, (c) is an example of an address setting table. (A) is an address before / after change, (b) is an address setting screen, and (c) is an example of an address allocation table after change. It is a flowchart figure of an address automatic determination process. It is a computer hardware block diagram. It is a figure for demonstrating the conventional memory batch change function.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Programmable display device 2,6 Communication line 3 External device 4 Screen display software for programmable display device 5 PC (PC)
11 Graph 12 Operating state 13 Numerical value (current value)
14 Numerical value (maximum value)
15 Numerical value (minimum value)
20 Address allocation table 21 Component 22 Address 31 Setting type specification area 32 Specification area 33 Address offset specification area 34 Address input area 40 Address setting table 41 Parts 42 Specification method 50 Computer 51 CPU
52 memory 53 input unit 54 output unit 55 storage unit 56 recording medium drive unit 57 network connection unit 58 bus 59 portable recording medium 59a FD (flexible disk)
59b CD-ROM

Claims (2)

An address allocation table for storing a memory address to be allocated for each component of the component group on the screen for the programmable display;
A setting for setting an address offset value or a real address value for each component of the arbitrary component group, and setting a real address for a fixed address component and registering the setting contents in the address setting table. Means,
When changing the memory address of each component of the component group, if an arbitrary start address is input and the address offset value is registered for each component with reference to the address setting table, A new memory address is obtained based on the head address and the address offset value. When the real address value is registered, the real address value is set as a new memory address, and the address is determined by each new memory address. Address batch replacement means for updating the memory address of the allocation table;
A screen display device for a programmable display, comprising: Computer
An address assignment storage means for storing a memory address assigned to each part of a part group on a screen for a programmable display;
A setting for setting an address offset value or a real address value for each component of the arbitrary component group, and setting a real address for a fixed address component and registering the setting contents in the address setting table. Means,
When changing the memory address of each component of the component group, if an arbitrary start address is input and the address offset value is registered for each component with reference to the address setting table, A new memory address is obtained based on the head address and the address offset value. When the real address value is registered, the real address value is set as a new memory address, and the address is determined by each new memory address. Address batch replacement means for updating the memory address of the allocation table,
Program to function as.