JP2871015B2 - Image display control device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an apparatus for displaying various image blocks such as figures, graphs, numbers, and characters at arbitrary coordinate positions on a screen such as a CRT and a plasma display. More particularly, the present invention relates to an image display device capable of quickly and easily changing the display of all or a part of each image block according to data sent from an external circuit.

(Prior Art) Such an image display device is usually connected to a host computer online to monitor the operating state of a plant including, for example, tanks, piping, valves, etc., and the progress of a process in a machine factory. (For example, see Japanese Patent Publication No. 52-6130).

However, the conventional image display device merely has a function of changing the display of a predetermined image block on the screen in accordance with a control command from the host computer, and the control command needs to be created by the user at the host computer. was there. In this case, the user has to be proficient in creating a program using a large number of control commands.

The applicant has proposed an image display control device in which the display of an image block is automatically changed according to binary data (state information MD) sent from a host computer (Japanese Patent Application No. 63-305414). ).

As shown in FIG. 19, the image display control device (10) includes graphic data GD for drawing each image block on a screen.
Graphic data storage means (62) in which is stored
State information storage means (68) in which the state information MD is to be stored as an array of binary data, and event data storage means (61) in which a display change processing word W 'is stored for each image block. And a system control means (67) for decoding the display change processing word W 'and executing a display change procedure for predetermined graphic data.

The display change processing word W ′ includes an event code TN for identifying an image block to be subjected to display change, address data AD indicating a storage position of state information corresponding to the image block in the state information storage means, and A file code FN for calling graphic data corresponding to an image block from the graphic data storage means, display change data ZD preset according to binary values of state information MD for the image block, And coordinate data HD representing a display position on the screen.

In the above device, the state information MD sent from the external circuit is sequentially written to a predetermined address of the state information storage means (68), and the value of the state information MD changes every moment.

The system control means (67) sequentially reads the display change processing word W 'stored in the event data storage means, decodes the read display change processing word, and executes the following procedure.

Based on the address data AD included in the display change processing word W ′, the state information MD corresponding to the address data is read from the state information storage means (68), and the file code FN included in the display change processing word is read out. Based on this, the corresponding graphic data GD is called from the graphic data storage means (62).

At this time, the system control means (67) defines the drawing position of the graphic data GD based on the coordinate data HD included in the display change processing word W '. Further, according to the value (“0” or “1”) of the state information MD, the meaning of the display change data ZD included in the display change processing word W ′ is interpreted, and based on this, the display data is displayed on the graphic data GD. Perform change processing.

As a result, the graphic control signal created by the system control means (67) is supplied to the image display section (63), whereby the display of all or a part of the predetermined image block on the screen is changed.

In the image display control device, the display of a predetermined image block can be automatically changed according to the binary data (state information MD) representing the content of the display device. A simple function of simply arranging and outputting the monitoring data sent from the instrumentation system to the binary state information MD can be provided, and it is not necessary to create a screen control command as in the related art.

(Problem to be Solved) However, also in the image display control device, a program for writing the state information MD at a predetermined address in the state information storage means (68) is created by the user on the host computer side. Since registration is required, there is still room for improvement in reducing the burden on the user.

Also, the display change processing word W 'is stored in the event data storage means (61).
If the file code FN, the coordinate data HD, etc., contain an error when registering a file, the correct display change operation cannot be realized in the online operation mode. ) Could not be verified unless it was actually connected to the host computer and operated, which was inconvenient.

An object of the present invention is to provide an image display control device that can further reduce the burden on the user and can easily verify whether registration of the display change processing word is correct or not offline.

(Means for Solving the Problems) An image display control device (1) according to the present invention employs a known programmable controller (2) as a supply source of state information MD as shown in FIG. , The status information can be directly taken in, and the conventional status information storage means is omitted.

Further, in order to realize a simulated operation in an off-line state separated from the programmable controller (2), that is, an operation confirmation mode for verifying a display change processing word, a simulated state information storage means (65) and a simulated operation control means (64) ) Equipped.

That is, the image display control device (1) according to the present invention includes: a) a graphic data storage means (62) storing graphic data GD for drawing the plurality of image blocks; and b) a specific image block. Code TN for identifying the image block from other image blocks, address data indicating the storage position in the programmable controller (2) of the state information MD corresponding to the image block to be selected, and coordinates indicating the display position of the image block Display change processing word W including data HD
Event data storage means (61) stored for each image block; c) Decoding a display change processing word W in the event data storage means (61), and a programmable controller (61) based on the address data 2) Status information MD of the specified address in
And, based on the state information, create a graphic control signal for drawing graphic data GD of an image block to be subjected to a display change at a position corresponding to the coordinate data HD of the display change processing word W, Display (6
3) a system control means (6) to be sent to d), d) an event code TN for specifying an image block to be checked for operation in the operation check mode, and a simulated state serving as a basis for changing the display of the image block. An input unit (66) for inputting information; e) a simulated state information storage means (65) for storing simulated state information input from the input unit (66); and f) an operation check mode. Simulated display change according to the display change processing word W in the event data storage means (61) based on the event code TN input from the input unit (66) and the data in the simulated state information storage means (65). Simulation operation control means (64) for performing an operation.

(Operation) In the event data storage means (61), a display change processing word W is registered in advance for each image block at a different display position. Note that the display change processing word W is stored in the event data storage means (61).
Can be easily performed in an interactive manner as described later.

In the operation mode in which the image display control device (1) is connected to the programmable controller (2), the system control means (6) sequentially reads the display change processing words W stored in the event data storage means (61), The display change processing word is decoded, and the following procedure is executed based on the result.

The state information MD is read from the programmable controller (2) based on the address data included in the read display change processing word W, and the corresponding graphic data GD is read from the graphic data storage means (62) based on the state information MD. Call.

At this time, the system control means (6) defines the drawing position of the graphic data GD based on the coordinate data HD included in the display change processing word W.

As a result, a graphic control signal is created by the system control means (6) and supplied to the image display section (63). As a result, the display of all or a part of the predetermined image block on the screen is changed.

The event code TN included in the display change processing word W is
It can be displayed as needed at a position near the image block to be changed in display.

In the operation check mode in which the image display control device (1) is separated from the programmable controller (2), an event code TN for specifying an image block to be checked for operation is input by the input unit (66); Enter the simulated state information which is the basis of the display change for. The simulation state information is stored in the simulation state information storage means (65).

The simulated operation control means (64) performs the operation of the system control means (6) in the operation mode based on the event code TN input from the input unit (66) and the data in the simulated state information storage means (65). A substantially similar simulation display changing operation is performed.

That is, the event code TN is stored in the event data storage means (61).
Is read and the graphic data storage means (6) is read out based on the state information MD.
Call the corresponding graphic data GD from 2). At this time, the system control means (6) sets the display change processing word W
The drawing position of the graphic data GD is defined based on the coordinate data HD included in.

As a result, a graphic control signal is created by the system control means (6) and supplied to the image display section (63). As a result, the display of all or a part of the predetermined image block on the screen is changed.

If the display change processing word W of the event data storage means (61) is set correctly, the desired image display change is realized on the image display unit (63), but if there is an error, the desired image is changed. Display change cannot be realized.

As a result, the correctness of the display change processing word can be verified, and if there is an error, the display change processing word can be promptly corrected.

(Effect of the Invention) According to the image display control device of the present invention, a simple program for storing the monitoring data sent from the instrumentation system as the state information MD at a predetermined address is set in the programmable controller (2). A program for storing state information in the image display control device itself is not required, and the burden on the user is reduced.

Of course, the validity of the display change processing word can be verified in a state separated from the programmable controller (2), and if there is an error, it can be easily corrected.

(Example) The example is intended to illustrate the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof.

Hereinafter, an embodiment of an image display control device according to the present invention will be described in detail with reference to the drawings. The image display control device is
Although it also has a function as a conventional general graphic display device, illustration and description of these well-known configurations are omitted.

The applicant added new functions to the operation of the operation mode of the image display control device (10) shown in FIG. 19 in the process of completing the image display control device according to the present invention. explain.

In the image display control device (10) of FIG. 19, the number of file codes FN that can be included in one display change processing word W 'is one, so that an image block at a certain position on the screen is
In order to change the display to two or more forms, it is necessary to register in advance the display change processing words differing only in the file code by the number of the forms, and the procedure is complicated.

Therefore, as shown in the event data storage means (61) in FIG. 1, a display change processing word W having a different configuration is newly set together with the display change processing word W 'in FIG.

The display change processing word W newly set as shown in FIG. 1 includes an event code TN for identifying a plurality of image blocks to be selectively displayed at the same display position from image blocks at other display positions, and a selection code. Indicates the storage position in the storage unit of the state information MD (the state information storage means (68) in the apparatus of FIG. 19, and the programmable controller (2) in the apparatus of the present invention) representing the file code FN corresponding to the image block to be processed. Address data FA and coordinate data HD indicating the display position of the image block on the screen are included.

In the apparatus shown in FIG. 19, the state information MD is set as bit data representing the content of the display change itself. However, the state information specified by the new display change processing word W in FIG. Is configured as word data representing the file code FN of the image block to be subjected to.

In the display change operation according to the new display change processing word, the system control means (6) executes the following procedure based on the decoding result of the display change processing word W read from the event data storage means (61). I do.

Based on the address data FA included in the read display change processing word W, state information MD having a predetermined bit length is read from the state information storage unit (programmable controller (2)), and graphic data is read out based on the state information MD. Graphic data corresponding to the storage means (62)
Call GD.

At this time, the system control means (6) defines the drawing position of the graphic data GD based on the coordinate data HD included in the display change processing word W.

As a result, a graphic control signal is created by the system control means (6) and supplied to the image display section (63). As a result, the display of all or a part of the predetermined image block on the screen is changed.

According to the configuration of the display change processing word W, the display change processing word may be registered for each image block at a different display position, and need not be registered for each image block to be switched and displayed at the same position. The registration means is simplified.

Regardless of whether the display change processing word is any of the two formats shown in FIG. 1, the system control means (6) repeatedly reads out the state information MD set in the state information storage unit, and reads the state information. The value is constantly monitored, and if there is a change in the state information MD of any address, the event data storage means (6
The display change processing words W and W 'of 1) are searched, and the address data FA and AD indicating the storage position of the changed state information are searched.
The same display change processing as described above can be performed by calling and decoding the display change processing words W and W 'including.

Hereinafter, a more specific configuration and operation of the image display control device (1) shown in FIG. 1 will be described in detail.

The image display control device (1) is connected online with a programmable controller (2) as shown in FIG. 2, and various kinds of monitoring data are supplied to the programmable controller (2) from an instrumentation system for monitoring the operation state. You.

The image display control device (1) includes a display (11) and a keyboard (12) as input / output devices and an RS-controller for receiving data from the programmable controller (2).
232C-compliant communication controller (13), I / O controller (14) for taking in input signals from keyboard (12), CPU (15), and drawing mode, operation mode and operation confirmation mode described later ROM in which the system program (Figs. 9, 10, and 11) for execution is registered
(4) and various RAMs described later (41) (42) (43) (44)
And a register (3) for controlling data read timing by the communication controller (13) and a graphic controller (5) for controlling a drawing operation of the display (11).

Of the four RAMs, the aggregated state information RAM (41) is used as the simulated state information storage means (65) in FIG. 1, the event RAM (42) is used as the event data storage means (61), and the graphic RAM (41). Four
3) corresponds to the graphic data storage means (62), respectively, and the system program stored in the ROM (4) corresponds to the system control means (6) and the simulation operation control means (64). The operation of these RAMs will be described later.

The video RAM (44) is used to develop the data of the graphic RAM (43) into a screen image when the graphic controller (5) controls the drawing operation of the display (11).

On the other hand, the programmable controller (2) includes an input unit (21), a CPU unit (22), and a memory unit (2).
3) A well-known configuration including a computer link unit (24) and an output unit (25). For example, when a programmable controller manufactured by OMRON is adopted, a CPU is provided for the base unit "C200H-BC051". Unit “C2
00H-CPU01 ", memory unit" C200H-MR431 ", upper link unit" C200H-LK201 ", etc. can be easily configured.

The computer link unit (24) of the programmable controller (2) is serially connected to the communication controller (13) of the image display controller (1).

Monitoring data from the instrumentation system is input to the input unit (21), and state information created through predetermined processing by the CPU unit (22) is stored in the memory unit (23). The status information in the memory unit (23) is sent to the image display control device (1) via the computer link unit (24).

FIGS. 3A and 3B show the address space of the memory unit (23) of the programmable controller and the address space of the integrated state information RAM (41) of the image display control device.

The memory unit (23) is provided with a 16-bit length storage unit composed of the 0th bit to the 15th bit, only for required addresses (addresses 0 to N). On the other hand, the aggregation state information RAM (41) stores the memory unit (2
3) It is used to collect and temporarily store only the status information corresponding to the image block on the fixed screen that is currently displayed, out of all the status information in the above. The 16-bit storage unit is a memory. Only the required addresses (addresses 0 to M) smaller than the unit (23) are provided. Aggregation status information RAM
(41) is used as the simulated state information storage means (65) in the operation confirmation mode, and functions as a buffer for temporarily storing the state information read from the memory unit (23) in the operation mode. To do. Therefore, in the operation mode, the aggregated state information RAM (4
1) is not always necessary, and the status information read from the programmable controller (2) is aggregated status information.
It is also possible to directly use the display change processing without writing to the RAM (41).

In the operation mode, the monitoring data supplied to the programmable controller (2) is stored in the CPU unit (22).
After being converted into a data string (state information MD) of “0” and “1” by a procedure set in advance, bit data (“ON” or “OFF”) for each bit is stored in the memory unit (23). It is stored at a predetermined bit address of a predetermined address (hereinafter, referred to as a bit device address). The word data of every 16 bits is stored in a predetermined address of the memory unit (23) (hereinafter, referred to as a word device address).

When a read control signal is sent from the image display control device (1) to the programmable controller (2), data of a bit device address or a word device address according to the control signal is stored in the aggregated state information of the image display control device (1). The data is sequentially stored in the RAM (41). Therefore, the storage address of each state information in the aggregated state information RAM (41) is defined in correspondence with the registration order of the display change processing words in the event RAM (42).

Then, by a processing procedure that proceeds in parallel with the registration processing in the aggregate state information RAM (41), the aggregate state information RAM
The data in (41) is read, and the image display change processing described later is executed.

In the following description of the operation mode, the procedure for temporarily storing the state information read from the memory unit (23) of the programmable controller (2) in the integrated state information RAM (41) will be omitted.

FIG. 4 shows an example of the display change processing word W stored in the event RAM (42).
The new format described above in FIG.
It has a basic configuration of TN, address data FA and coordinate data HD.

Hereinafter, in the example shown in FIGS. 5 to 7, the configuration of the display change processing word W when the display of the valve is changed will be described.
This will be specifically described.

The screen of FIG. 5 is composed of three image blocks showing the tank (7), the pipe (71) and the valve (72). As shown in FIG. 6, the tank (7) and the pipe (71) are created as fixed images of the display (11), and the graphic data thereof is stored in the graphic RAM (43) together with the file number F1. As shown in FIG. 7, the valve (72) is arbitrarily selected from three types of image blocks (72), (73), and (74) that can be called relative to the fixed image. The graphic data of the image block is stored in the graphic RAM (43) with file numbers F2 and F, respectively.
3, registered with F4. The file number is represented as 16-bit word data.

When the display change processing word W is registered in the event RAM (42) of FIG. 4, the apparatus is set to the drawing mode, and the registration procedure shown in FIG. 9 is performed by operating the keyboard (12).

By setting the file number F1 of the fixed image (here, No. 1) as a key, the file number is stored at the address 0 of the event RAM (42) shown in FIG.

Next, by inputting the bit device address A1 in the memory unit (23) where the state information (for example, "1") for calling the fixed image in FIG. 6 is to be stored, the input data is stored in the event RAM (42). Is stored at the first address.

Further, the status information stored in the bit device address A1 of the memory unit (23) is ON ("1") or OFF.
(“0”) ON indicating when to call the fixed image
Set / OFF data S. The data is stored at the second address of the event RAM (42).

Next, the type of image block (event) to be changed in display, that is, whether a mark such as a valve is displayed, a library having a more complicated configuration than the mark, a time display, or the like is distinguished. (For example, “1” in the case of a mark display). The input data is the event RAM (4
It is stored in the third address of 2).

At the position near the valve (72) as shown in FIG.
To display the event name TN, enter the display start position of the event name on the screen, and then key in "Valve". These input data are stored at addresses 4 and 5 of the event RAM (42).

Next, by setting a bit device address A2 in the memory unit (23) in which state information for changing the display color of the image block of the valve in FIG. 7 is to be stored, this data is stored in the event RAM (42). At the sixth address.

Further, the word device address in the memory unit (23) of the status information indicating any of the registered file numbers F2, F3 and F4 of the image blocks of the three types of valves shown in FIG.
By setting A3 as a key, the address data
It is stored at the seventh address of the RAM (42).

Thereafter, the status information of the bit device address A2 is
When ON (“1”) and OFF (“0”), key-in ON / OFF color information ZD indicating which color each mark (bulb) is applied to. For example, a red designated key is operated when ON, and a green designated key is operated when OFF. The ON / OFF information ZD is the event RA
It is stored at the eighth address of M (42).

Finally, coordinate data HD (X and Y shown in FIG. 5) indicating the display position of the mark (valve) on the screen is input. The coordinate data is stored at the ninth address of the event RAM (42).

By repeating the above procedure for creating the display change processing word W for all events for which a display change is to be made,
Registration of RAM (42) is completed. This procedure is performed in an interactive manner between the display on the display (11) and the key operation by the user. Whether or not the display change processing word has been correctly created can be easily verified by an operation check mode described later.

Note that the registered file number storage word device address A3
And the display change processing word W 'including the registered file number itself, and the event RAM (42)
It is also possible to register in. In this case, when the former display change processing word W is decoded, the memory unit (23)
When the file number of the image block (mark or library) is indirectly specified via the data in the above, and the latter display change processing word W 'is decoded, the data included in the display change processing word is directly used. Will be specified the file number.

Next, the operation in the operation mode in which the image display control device (1) according to the present invention is connected to the host computer (2) will be described with reference to FIG.

When the apparatus is turned on, it is first determined whether or not the apparatus is online with the host computer. If NO, it is determined whether or not the drawing mode is designated.
When YES, the drawing mode is set, and when NO, the operation confirmation mode (simulation mode) is set.

Event RAM (42) when online (operating mode)
And sequentially read out the contents of a number of display change processing words W stored in the programmable controller (2).
A data communication process between the device and the image display control device (1) is started, and the following procedure is executed.

First, based on the screen call bit device address A1 included in the read display change processing word W, the value of the state information MD stored at the address (A1) in the memory unit (23) of the programmable controller is read and read. Value and the screen call ON / O included in the display change processing word
The value of the FF data S is compared (8). If they do not match,
It is determined that the programmable controller (2) has not instructed the display change, and the process returns to the data communication process.

When the state information MD matches the ON / OFF data S, a fixed image is called from the graphic RAM (43) based on the file number F1 included in the display change processing word W.

Next, the mode branches (81) in accordance with the type of the event included in the display change processing word W, and the process proceeds for each mode.

A display change processing word W including a registered file number storage word device address A3 in the event RAM (41), and an address A3
In the case where the display change processing word W 'including the registration file number is mixed and registered instead of the above, when the former display change processing word W is decoded, the data is stored in the memory unit (23) via the data in the memory unit (23). The file number of the mark or library is specified indirectly, and the mark or library is displayed (indirect display).

On the other hand, when the latter display change processing word W 'is decoded, the file number is directly specified by the data included in the display change processing word, and the mark or the library is displayed (direct display). .

For example, in the case of the indirect display of the mark (valve) as shown in FIG. 10, the event name is designated by the event name start position based on the event name start position and the event name TN included in the display change processing word W as necessary. The event name TN (“valve”) is displayed at the screen position (82).

Thereafter, based on the event display call bit device address A2 included in the display change processing word W, the state information data MD is read from the address (A2) of the memory unit (23), and the value of the read data MD is set to “ON”. Or "OFF" is determined (83).

If the determination result is “ON”, the display change processing word W
Based on the registered file number storage word device address A3 included in the memory unit (23).
Read the 16-bit state information MD stored in the
The graphic RAM (4
Read the graphic data GD of the image block (valve) registered in 3). Further, an ON / OFF is set at the screen position specified by the coordinate data HD included in the display change processing word W.
The image block (bulb) is displayed in the color (red) when the color information is “ON”.

If the determination result is “OFF”, the 16-bit data stored in the address A3 of the memory unit (23) is based on the registered file number storage word device address A3 included in the display change processing word W. The state information MD is read out, and the state information MD is used as a file number as a graphic RA.
The graphic data GD of the image block (valve) registered in M (43) is read. Further, at the screen position specified by the coordinate data HD included in the display change processing word W,
The image block (bulb) is displayed in the color (green) when the ON / OFF color information is “OFF”.

Thereafter, the process returns to the data communication process, and continues the display change based on the next display change processing word W.

By the above procedure, the screen of the display (11) changes every moment according to the data sent from the programmable controller (2).

Next, the operation in the operation check mode (simulation mode) will be described with reference to FIG.

First, the first fixed picture set in advance is called (9) and displayed on the screen as shown in FIG. At this time, a guide menu is displayed at the bottom of the screen. When the event name TN is input (91) in response to the prompt for "event name search" displayed on the guide menu, the mode is branched (92) in accordance with the type of the event, and the process proceeds for each mode. .

For example, taking the indirect display of a mark (valve) as an example, the display change processing word W including the event name TN is stored in the event RAM (4
The contents are read out from 2), and the contents are displayed in the guide menu as shown in FIG. At this time, the test data of the status information to be specified by the event display call bit device address A2 (simulated status information) and the test data of the status information to be specified by the registered file number storage word device address A3 are input. Be prompted.

When these test data are input (93), substantially the same operation as in the operation mode shown in FIG. 10 is performed thereafter. That is, as shown in FIG. 11, the mode is branched according to the type of the event. For example, in the case of the indirect display of the mark, the value of the state information data MD indicating the event display call bit condition input as test data is set to “ It is determined whether it is "ON" or "OFF" (94).

If the determination result is "ON", the graphic data GD of the image block (valve) registered in the graphic RAM (43) is read using the registered file number storage data input as test data as the file number.
Further, an image block (bulb) is displayed at the screen position specified by the coordinate data HD included in the display change processing word W in the color (red) when the ON / OFF color information is “ON”.

If the result of the determination is "OFF", the graphic data GD of the image block (valve) registered in the graphic RAM (43) is read using the registered file number storage data input as the test data as the file number. Further, the coordinate data HD included in the display change processing word W
The image block (bulb) is displayed at the position specified by the color (green) when the ON / OFF color information is “OFF”.

For example, two types of marks (7
2) If (75) is registered in the graphic RAM (43) as file numbers “700” and “701”, respectively,
When "1" is input as the event display calling condition and "700" is input as the registration file number storage data as shown in the figure, the valve (72) is correctly drawn on the screen as shown. This verifies that the display change processing word W is correct.

On the other hand, if "701" is input as the registered file number storage data as shown in FIG. 16, and if the valve (75) is displayed at a shifted position as shown in FIG. It is found that the displayed display change processing word has an error in the coordinate data HD (X, Y) representing the event display position.

In the procedure of FIG. 11, after the image is displayed based on the test data as described above, the operation of the end key is determined (95).
When the end key is operated, the drawing mode is set.

In the example of FIG. 16, the coordinate data (X, Y) included in the display change processing word W is corrected in the drawing mode set by operating the end key.

If there is no operation of the end key, it is determined whether or not fixed image switching has been instructed (96). If YES, the next fixed image specified by the fixed image switching operation is called (9), and Operations of various image blocks to be displayed on the fixed image are checked. If the determination (96) is NO, the display returns to the guide menu while maintaining the same fixed image, and the operation of another image block on the same fixed image is checked.

The operation check mode can be executed not only in the above-mentioned offline state but also in an online state in which the image display control device (1) and the programmable controller (2) are connected. In this case, the programmable controller (2) Based on the state information set in the memory unit (23), the same operation check as described above is executed.

According to the online operation check, it is possible to verify the display change processing word as well as the offline, and at the same time, verify the state information creation and registration program set in the programmable controller (2). It is possible.

For example, when the display position of the valve (75) shifts as shown in FIG. 16, if the coordinate data of the display change processing word is correct, the registration file number storage data sent from the programmable controller (2) is used. An error is discovered. For example, if the correct registered file number storage data is "702", the program of the programmable controller (2) is modified so that the correct image display shown in FIG. 17 is obtained.

FIG. 12 shows a flow of an overall processing procedure for shifting from the above-described drawing mode to the online operation mode via the operation confirmation mode.

By this procedure, the event RA of the image display controller (1) is performed.
The display change processing word registered in M (42) and the program set in the programmable controller (2) can be easily verified interactively, and the software errors found can be quickly corrected. .

According to the image display control device (1), the program to be set in the programmable controller (2) includes a process of transferring monitoring data from the instrumentation system as it is as status information to a predetermined address of the memory unit (23), RA
It is simple to execute processing to create 16-bit state information that specifies the file code in M (43), and its creation is far less than that of a conventional program containing complicated control commands. Easy.

In the image display control device (1), the event name TN is written in the event RAM (42) of FIG. 4 for each event to be changed in display.
When it is desired to correct the registration in 2), the event RAM (42) can be cross-searched using the event name as a keyword. The result is edited into a chart as shown in FIG. 8 and output. Therefore, the user can easily rewrite the event RAM (42) while referring to this table, which is convenient.

The drawings and description of the above embodiments are intended to illustrate the present invention and should not be construed as limiting the invention described in the claims or reducing the scope thereof.

Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of an image display control device according to the present invention, FIG. 2 is a block diagram showing a specific configuration of the image display control device and a programmable controller, and FIG. FIG. 4 is a diagram for explaining an address space of an integrated state information RAM of a memory unit and an image display control device, FIG. 4 is a diagram for explaining a configuration of a display change processing word stored in an event RAM, and FIG. , FIG. 6 is a diagram showing a fixed image portion constituting the screen, FIG. 7 is a diagram showing an image block to be displayed, and FIG. 8 is a diagram showing a result of a cross search using an event name as a keyword. FIG. 9 is a flowchart showing the operation in the drawing mode, FIG. 10 is a flowchart showing the operation in the operation mode, and FIG. 11 shows the operation in the operation check mode. FIG. 12 is an overall flowchart showing a flow of shifting from the drawing mode to the operation mode via the operation confirmation mode, and FIGS. 13 to
FIG. 17 is a diagram showing a screen in the operation check mode, respectively.
The figure shows an image block used for explaining the operation check mode. FIG. 19 is a block diagram showing the structure of the image display control device proposed by the applicant earlier. (1) Image display control device (2) Programmable controller (11) Display MD State information

Claims (1)

(57) [Claims] An image display unit (63) that can be connected to a programmable controller (2) and selectively selects a plurality of pre-registered image blocks based on state information MD sent from the programmable controller. In the image display control device for drawing at a predetermined position, a) graphic data storage means (62) storing graphic data GD for drawing the plurality of image blocks; and b) identifying a specific image block. Code TN, address data indicating a storage position in the programmable controller (2) of the state information MD corresponding to the image block,
And an event data storage means (61) in which a display change processing word W including coordinate data HD indicating a display position of the image block is stored for each image block; c) in the event data storage means (61) , And decodes the state change information MD of a predetermined address in the programmable controller (2) based on the address data.
And, based on the state information, create a graphic control signal for drawing graphic data GD of an image block to be subjected to a display change at a position corresponding to the coordinate data HD of the display change processing word W, Display (6
3) a system control means (6) for sending to the d), d) an event code TN for specifying an image block to be checked for operation in the operation check mode, and a simulated state serving as a basis for changing the display of the image block. An input unit (66) for inputting information; e) a simulated state information storage means (65) for storing the input simulated state information; and f) an event code input in the operation check mode. Simulation operation control means (64) for performing a simulation operation in accordance with the display change processing word W in the event data storage means (61) based on the TN and the data in the simulation state information storage means (65). An image display processing device comprising: