JPH0468395A - Image display controller - Google Patents

Abstract

PURPOSE:To eliminate the need for a program for state information stored in the image display controller itself by setting a simple program for storing monitor data, sent from an instrumentation system to a programmable controller, in specific addresses as state information. CONSTITUTION:In operation mode wherein the controller 1 is connected to the programmable controller 2, a system control means 6 reads a display alteration processing word W out of an event data storage means 61 and reads the state information MD out of the programmable controller 2 according to the address data in the display alteration processing word W. At the same time, corresponding graphic data GD is read out of a graphic data storage means 62 according to the state information MD. Then the system control means 6 generates and supplies a graphic control signal to an image display part 63. Consequently, the state information is fetched directly from the programmable controller 2 and a state information storage means is omitted.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a device that displays various image blocks such as figures, graphs, numbers, and characters at arbitrary coordinate positions on the screen of a CRT, plasma display, etc. In particular, the present invention relates to an image display device that can quickly and easily change the display of all or part of each image block in accordance with data sent from an external circuit.

(Prior Art) This type of image display device is usually connected to a host computer online to monitor, for example, the operating status of a plant consisting of tanks, piping, valves, etc., and the progress status of processes in a machine shop. It is used as a display terminal for various purposes (for example, see Japanese Patent Publication No. 52-6130).

However, conventional image display devices only have the function of changing the display of predetermined image blocks on the screen according to control commands from the host computer, and the control commands are created by the user or the host computer. There was a need. In this case, the user has to become proficient in creating programs using a large number of control commands, which poses a problem of placing a heavy burden on the user.

Therefore, the applicant proposed an image display control device in which the display of image blocks is automatically changed according to binary data (status information MD) sent from a host computer (Japanese Patent Application No. 63-305414 issue).

As shown in FIG. 19, the image display control device (10) includes a graphic data storage means (6) in which graphic data GD for drawing each image block on the screen is stored.
2), a state information storage means (68) in which the state information MD is stored as an array of binary data, and an event data storage means (61) in which the display change processing word W' to be described later is stored for each image block. ), and a system control means (67) that decodes the display change processing word W' and executes a display change procedure for predetermined graphic data.

The display change processing word W' includes an event code TN for identifying the image block to which the display change is to be performed, and atto and response data AD representing the storage position of the state information corresponding to the image block in the state information storage means. , a file code FN for calling graphic data corresponding to the image block from the graphic data storage means, display change data ZD preset according to binary values of status information MD for the image block, and the image. It also includes coordinate data HD representing the display position of the block on the screen.

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

The system control means (67) sequentially reads out the display change processing words W' stored in the event data storage means, decodes the read display change processing words, 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 from the state information storage means (68). 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'. Also, according to the value of the status information MD (°゛O" or 1"), the meaning of the display change data ZD included in the display change processing word W' is interpreted, and based on this, the display is performed on the graphic data GD. Perform change processing.

As a result, the graphic control code created by the system control means (67) is supplied to the image display section (63), thereby changing the display of the entire or part of the predetermined image block on the screen. be.

In the above-mentioned image display control device, the display of a predetermined image block can be automatically changed according to the binary data (status information MD) representing the content of the display change. It is sufficient to simply provide a simple function of arranging and outputting the monitoring data sent from the instrumentation system into binary status information MD, and there is no need to create screen control commands as in the past.

(Problem to be Solved) However, even in the above image display control device, the program for writing the status information MD to a predetermined location in the status information storage means (68) is created by the user or the host computer. Since registration is required, there is still room for improvement in reducing the burden on users.

In addition, the display change processing word W' is stored in the event data storage means (61).
When registering, if there is an error in the file code FN, coordinate data HD, etc., the correct display change operation cannot be realized in online operation mode, but the correctness of the display change processing word is determined by the image display control device ( ) cannot be verified unless it is actually connected to a 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 that can easily verify off-line whether the registration of display change processing words is correct.

(Means for Solving the Problems) An image display control device (1) according to the present invention employs a well-known programmable controller (2) as a source of state information MD as shown in FIG. This makes it possible to directly import status information from the system, eliminating the need for conventional status information storage means.

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

That is, the image display control device (1) according to the present invention comprises: a) graphic data storage means (62) in which graphic data GD for drawing the plurality of image blocks is stored; and b) a specific image block. event code TN for distinguishing 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. A display change processing word W containing data HD is stored in the event data storage means (61) for each image block; C) decoding the display change processing word W in the event data storage means (61); Based on the address data, read the status information MD of a predetermined address in the programmable controller (2), and based on the status information, graphic data GD of the image block to be changed in display,
system control means (6) for creating a graphic control signal for drawing at a position corresponding to the coordinate data HD of the display change processing word W and sending it to the image display section (63);
) an input unit (66) for inputting an event code TN for specifying an image block to be checked for operation in the operation check mode, and simulated state information that is the basis for changing the display for the image block; ) a simulated state information storage means (65) for storing simulated state information inputted from the input section (66);
) to perform a simulated display change operation according to the display change processing word W in the event data storage means (61) based on the event code TN input from the event code TN and the data in the simulated state information storage means (65). and a simulated motion control means (64).

(Function) Display change processing words W are registered in advance in the event data storage means (61) for each image block at a different display position. Incidentally, the procedure for registering the display change processing word W in the event data storage means (61) can be easily carried out 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 out the display change processing words W stored in the event data storage means (61), decodes the display change processing words, and executes the following procedure based on the result.

Based on the address data included in the read display change processing word W, state information MD is read out from the programmable controller (2), and corresponding graphic data GD is read out 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 part of a predetermined image block on the screen is changed.

Incidentally, the event code TN included in the display change processing word W is
It can be displayed as necessary at a position near the image block that is the target of display change.

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

The simulated operation control means (64) receives the event code TN input from the input section (66) and the simulated state information storage means (65).
Based on the data, a simulated display changing operation is performed that is substantially the same as the operation of the system control means (6) in the operation mode.

That is, the event code T is stored from the event data storage means (61).
The display change processing word W containing the number N is read out, and the corresponding graphic data GD is called from the graphic data storage means (62) based on the state information MD. 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 part of a 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 will be realized on the image display section (63), but if there is an error, the desired image will not be displayed. Unable to change display.

This allows the correctness of the display change processing word to be verified, and if there is an error, the display change processing word can be promptly corrected.

(Effects of the Invention) According to the image display control device according to the present invention, a simple program can be set for the programmable controller (2) to store monitoring data sent from the instrumentation system in a predetermined location as status information MD. This eliminates the need for a program for storing status information in the image display control device itself, reducing the burden on the user.

However, 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.

(Examples) Examples are provided to explain the present invention, and should not be construed as limiting the invention described in the claims or reducing its scope.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an image display control device according to the present invention will be described in detail below with reference to the drawings. Incidentally, the image display control device is based on the conventional general graphics 1. However, illustrations and explanations of these well-known configurations will be omitted.

In the process of completing the image display control device according to the present invention, the applicant added a new function regarding the operation mode of the image display control device (lO) shown in FIG. 19. 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 an image block at a certain position on the screen can be In order to change the display to the format, it is necessary to register in advance display change processing words that differ only in file code as many as the number of the formats, and the procedure is complicated.

Therefore, as shown in the event data storage means (61) of FIG. 1, a display change processing word W having a different structure is newly set together with the display change processing word W' of FIG. 19.

The newly set display change processing word W as shown in FIG. Indicates the storage position in the storage section (in the device of FIG. 19, the state information storage means (68), in the device of the present invention, the programmable controller (2)) of the state information MD representing the file code FN corresponding to the image block to be processed. It includes address data FA and coordinate data HD indicating the display position of the image block on the screen.

Furthermore, in the device shown in FIG. 19, the status information MD is set as bit data representing the content of the display change itself;
The status information specified by the new display change processing word W in FIG. 1 is configured as word data representing the file code FN of the image block to be subjected to display change.

In the display change operation according to the new display change processing word, the system control means (6) stores the event data storage means (6).
Based on the result of decoding the display change processing word W extracted from 1), the following procedure is executed.

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

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 part of a predetermined image block on the screen is changed.

According to the configuration of the display change processing word W, the display change processing word only needs to be registered for each image block at a different display position, and does not need to be registered for each image block to be switched and displayed at the same position. The registration procedure will be simplified.

Incidentally, regardless of whether the display change processing word is in either of the two formats shown in FIG. The value is constantly monitored, and if there is a change in the status information MD of any address, the event data storage means (
Search for the display change processing words w and w' in 61) to obtain address data FA representing the storage location of the changed state information.
, AD can also be called and decoded to perform display change processing similar to the above.

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 to the programmable controller (2) as shown in Fig. 2, and the programmable controller (2) is supplied with various monitoring data from the instrumentation system whose operating status is to be monitored. Ru.

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

Among the four RAMs, aggregate state information RAM (41
) or the event R is stored in the simulated state information storage means (65) in FIG.
A M (42) corresponds to the event data storage means (61), a graphic RAM (43) corresponds to the graphic data storage means (62), and a ROM (42) corresponds to the event data storage means (61).
) corresponds to the system control means (6) and the simulated operation control means (64). The operations of these RAMs will be described later.

The video RAM (44) is used to develop data in 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) has a well-known configuration including an input unit (21), a CPU unit (22), a memory unit (23), a computer link unit (24), and an output unit (25), For example, when adopting a programmable controller made by OMRON, you can easily combine the base unit "C200HBC051" with a CPU unit "C200H-CPUO1", a memory unit "C200HC200H-", a host link unit "C200H-LK201", etc. Can be configured.

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

Monitoring data from the instrumentation system is input to the input unit (21), and status 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. 3(a) and 3(b) show the address space of the memory unit (23) of the programmable controller and the address space of the aggregate state information RAM (41) of the image display control device.

The memory unit (23) contains O-th bit to 1-5th bit.
A 16-bit storage section consisting of bits is provided at the necessary addresses (from address 0 to address N). On the other hand, as will be described later, the aggregated state information RAM (41) aggregates only the state information corresponding to the image block on the currently displayed fixed screen out of all the state information in the memory unit (23). For primary storage, 16
The bit length storage section is provided at only the necessary addresses (0th address to Mth address) that are smaller than the memory unit (23) (
\ru. The aggregate state information RAM (41) is used as the simulated state information storage means (65) in the operation confirmation mode, and temporarily stores the state information read out from the memory unit (23) in the operation mode. It functions as a buffer. Therefore, in the operation mode, the aggregated state information RAM (41) is not necessarily necessary, and the programmable controller (
2) The state information read from the aggregated state information RAM
It is also possible to use it directly for display change processing without writing to (41).

In the operation mode, the programmable controller (2
) The monitoring data supplied to the CPU unit (22)
After being converted into a data string of "0" and "1" (state information MD) by a procedure preset in It is stored in a predetermined bit address of the address (hereinafter referred to as bit device address).
Word data for each bit is stored at a predetermined address (hereinafter referred to as word device address) of the memory unit (23).

When a read control signal is sent from the image display control device (1) to the programmable controller (2), the data of the bit device address or word device address according to the control signal or the aggregate state information of the image display control device (1) is sent. They are sequentially stored in 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, the data in the aggregate state information RAM (41) is read out by a processing procedure that proceeds in parallel with the registration process in the aggregate state information RAM (41), and the image display change process described below is executed. It will be done.

In the following explanation of the operation modes, the state information read from the memory unit (23) of the programmable controller (2) is temporarily stored as the aggregated state information RAM (
4i) The explanation of the procedure for storing in 4i) will be omitted.

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

Hereinafter, in the examples shown in FIGS. 5 to 7, the structure of the display change processing word W when changing the display of a valve will be specifically explained.

The screen of FIG. 5 is composed of three image blocks showing the tank (7), the piping (71) and the valve (72).

The tank (7) and piping (71) are created as fixed images on the display (11) as shown in FIG. 6, and the graphic data thereof is stored in the graphic RAM (43) with the file number F1. Also, valve (72
) are three types of image blocks (72) (73) that can be recalled relative to the fixed image, as shown in FIG.
(74), and the graphic data of these image blocks is the graphic RA
M (43) with file numbers F2, F3, and F4, respectively. The file number is expressed as 16-bit word data.

When registering the display change processing word W 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 keying the file number Fl (number 1 in this case) of the fixed image mentioned above, the file number is stored at address 0 of the event RAM (42) shown in FIG.

Next, state information for calling the fixed image in Figure 6 (e.g.
By inputting the Novit device address A1 in the memory unit (23) to store the data (1"), the input data is stored in the first address of the event RAM (42).

Furthermore, the state information stored in the bit device address A1 of the memory unit (23) is ON (“1”) or 0.
FF (“0”) Sets 0N10FF data S indicating when a fixed image is called up.

The data is stored in the second address of the event RAM (42).

Next, the type of image block (event) whose display should be changed,
In other words, data that distinguishes whether the display is a mark such as a valve, a library with a more complex structure than a mark, a time display, etc. (for example, "1" in the case of a mark display) is required. input.

The input data is stored at the third address of the event RAM (42).

If the event name TN "Valve" is to be displayed at a position near the valve (72) as shown in FIG. 5, after inputting the display start position of the event name on the screen, key in "Valve".

These input data are stored at the fourth and fifth addresses of the event RAM (42).

Next, by setting the bit device address A2 in the memory unit (23) in which state information for changing the display color of the valve image block shown in FIG. 7 is to be stored,
This data is stored at address 6 of the event RAM (42).

Furthermore, by keying the word device address A3 in the memory unit (23) of the status information representing any of the registered file numbers F2, F3, and F4 of the image blocks of the three types of valves shown in FIG. Address data is stored at address 7 of event RAM (42).

After that, when the status information of the pit device address A2 is ON (“1”) and 0FF (“0”), ON10 indicates which color the mark (bulb) is to be painted.
FF Key in color information ZD. For example, when it is ON, operate the red specified key, and when it is OFF, operate the green specified key. The 0N10FF information ZD is stored at the 8th address of the event RAM (42).

Finally, coordinate data HD (X and Y shown in FIG. 5) indicating the display position of the mark (bulb) on the screen is input. The coordinate data is stored at address 9 of the event RAM (42).

By repeating the above procedure for creating the display change processing word W for all the events that should be changed,
Registration of A M (42) is completed. This procedure is carried out in an interactive manner between the display (11) and the user's key operations. Whether or not the display change processing word has been created correctly can be easily verified using the operation confirmation mode described later.

In addition, the registered file number storage word device, address A
3 and the display change processing word W' containing the registered file number itself, the event RAM
It is also possible to register in (42). In this case, when the former display change processing word W is decoded, the file number of the image block (mark or library) is indirectly designated via the data in the memory unit (23), and the latter display change processing word W is decoded. When the processing word W' is decoded, the file number is directly designated by the data included in the display change processing word.

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 explained with reference to FIG.

When the device is powered on, it is first determined whether or not it is online with the host computer, and if No, it is determined whether or not a drawing mode has been designated.

When YES, the drawing mode is set, and when No, the operation confirmation mode (simulation mode) is set.

In the case of online (operation mode), the event RAM (42
) is stored in the programmable controller (2).
) and the image display control device (1) is started, and the following procedures are executed.

First, based on the screen call bit device address A1 included in the read display change processing word W, (A1
) reads the value of the state information MD stored at the address,
The read value is compared with the value of the screen call ON10FF data S included in the display change processing word (8).

If they do not match, it is determined that the programmable controller (2) has not instructed to change the display, and the process returns to the data communication process.

When the state information MD and the 0N10FF data S match, the file number F included in the display change processing word W
1, a fixed image is called from the graphic RAM (43).

Next, the mode is branched (81) according to the type of event included in the display change processing word W, and processing is advanced for each mode.

In the event RAM (41), a display change processing word W that includes a registered file number storage word device address A3 and a display change processing word W' that includes a registered file number instead of address A3 are registered in a mixed manner. In this case, when the former display change processing word W is decoded, the memory unit (2
The file number of the mark or library is indirectly specified through the data in 3), and the mark or library is displayed (indirectly displayed).

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

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

After that, based on the event display call bit device address A2 included in the display change processing word W, the status information data MD is read from address (A2) of the memory unit (23), and the value of the read data MD is "ON". It is determined whether it is "OFF" (83).

If the above judgment result is “ON”, the display change processing word W
Based on the registered file number storage word device address A3 contained in the memory unit (23), the 16-bit status information MD stored in the address A3 of the memory unit (23) is read out, and the status information is used as a file number to be stored in the graphic RAM (43). ) is registered in the image block (
Read out the graphic data GD of the valve. Furthermore, 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 0N10FF color information is "ON".

Further, if the above judgment result is "OFF", the 16-bit data stored at the address A3 of the memory unit (23) is Status information M
D is read out, and the graphic data GD of the image block (bulb) registered in the graphic RAM (43) is read out using the state information MD as a file number. Furthermore, the coordinate data HD included in the display change processing word W
The 0N10FF color information is displayed at the screen position specified by
The image block (bulb) is displayed in the color (green) for “F”.

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

Through 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 confirmation mode (simulation mode) will be explained along FIG. 11.

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

For example, if we take indirect display of a mark (valve) as an example, the display change processing word W including the event name TN is
M (42) and its contents are displayed on the guide menu as shown in FIG. Also, at this time, the test data (simulated state information) of the state information to be specified by the event display call bit device address A2 and the test data of the state information to be specified by the registered file number storage word device address A3 are input. Prompted.

When these test data are input (93), operations substantially similar to those in the operating mode shown in FIG. 10 are thereafter executed. That is, as shown in FIG. 11, the mode is branched depending on the type of event. For example, in the case of indirect display of a mark, the value of the state information data MD indicating the event display call bit condition input as test data or " ON” or “OF”
F” (94).

If the above judgment result is "ON", the graphic data GD of the image block (bulb) registered in the graphic RAM (43) is read out using the registered file number storage data input as test data as the file number. Furthermore, 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 ON10FF color information is "ON".

Also, if the above judgment result is "OFF", the graphic data GD of the image block (bulb) registered in the graphic RAM (43) using the registered file number storage data input as test data as the file number.
Read out. Further, an image block (bulb) is displayed at the position specified by the coordinate data HD included in the display change processing word W in the color (green) when the 0N10FF color information is "OFF".

For example, if the two types of marks (72) and (75) shown in FIGS. 18(a) and (b) are registered in the graphic RAM (43) as file numbers "700" and "701" respectively, As shown in the figure, “1” is used as the event display call condition and “7” is used as the registered file number storage data.
00", the screen will display the valve (7) as shown in the figure.
2) will be drawn correctly.

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 Figure 16, then the valve (75) is displayed in a shifted position as shown in the figure. It turns out that there is an error in the coordinate data HD (X, Y) representing the event display position in the display change processing word.

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

In the example shown in 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 commanded (96). If YES, the next fixed image specified by the fixed image switching operation is called (9);
The operation of various image blocks to be displayed on the fixed image is checked. If the judgment (96) is NO, the display returns to the guide menu while maintaining the same fixed image, and the operation of other image blocks on the same fixed image is checked.

The operation confirmation mode is not limited to the offline state mentioned above.
It can also be executed in an online state where the image display control device (1) and the programmable controller (2) are connected, and in this case, the state set in the memory unit (23) of the programmable controller (2) Based on the information, the same operation check as above is performed.

According to the online operation check, it is possible to verify the display change processing words in the same way as offline, and at the same time, it is possible to verify the program for creating and registering status information set in the programmable controller (2). It is possible.

For example, if there is a shift in the display position of the valve (75) as shown in Figure 16, if the coordinate data of the display change processing word is correct, the registered file number storage data sent from the programmable controller (2) It is discovered that there is an error. 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 as shown in FIG. 17 can be obtained.

FIG. 12 shows the flow of the overall processing procedure from the above-described drawing mode to the operation confirmation mode and then to the online operation mode.

Through this procedure, the event RA of the image display control device (1)
The display change processing words registered in M (42) and the programmable program set in the programmable controller (2) can be easily verified in an interactive manner, and errors found in the software can be quickly corrected.

According to the above-mentioned image display control device (1), the program to be set in the programmable controller (2) includes processing for transferring monitoring data from the instrumentation system as status information to a predetermined location in the memory unit (23), and graphic processing. R
It is a simple program that executes processes such as creating 16-bit status information that specifies the file code in A M (43), and is much easier to create than conventional programs that include complex control commands. Easy to use.

Furthermore, in the image display control device (1), an event base TN is written for each event for which a display change is to be made for the event RAM (42) in FIG. When it is desired to modify the registration of (42), it is possible to cross-search event RAM (42) using the event group as a keyword. This result is, for example, the 8th
The data will be edited and output as a diagram as shown in the figure. Therefore, the user can easily analyze the event RA while referring to this chart.
M (42) can be rewritten, which is convenient.

The drawings and the description of the above embodiments are for illustrating the present invention, and do not limit the invention described in the claims.
Nor should it be construed as limiting the scope.

Further, the configuration of each part of the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made within the technical scope of the claims.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the basic configuration of the image display control device according to the present invention, FIG. 2 is a block diagram showing the specific configuration of the image display control device and the programmable controller, and FIG. 3 is the inside of the programmable controller. 4 is a diagram illustrating the structure of the display change processing word stored in the event RAM, and FIG. 5 is an example of a display screen. FIG. 6 is a diagram showing the fixed image part that makes up the screen, FIG. 7 is a diagram showing image blocks whose display should be changed, and FIG. 8 is a diagram showing the results of a cross search using the event name as a keyword. Figure 9 is a flowchart showing the operation in the drawing mode, Figure 10 is a flowchart showing the operation in the driving mode, Figure 11 is a flowchart showing the operation in the operation confirmation mode, and Figure 12 is the drawing mode. 1 is an overall flowchart showing the flow of transition from 1 to operation confirmation mode to operation mode, 1st
3 to 17 are diagrams showing screens in the operation confirmation mode, FIG. 18 is a diagram showing image blocks used to explain the operation confirmation mode, and FIG. 19 is an image display control device previously proposed by the applicant. FIG. 2 is a block diagram showing the configuration of FIG. (1)...Image display control device (2)...Programmable controller (11)...
・Display MD...Status information 1; Elephant F is here Figure 18 Condition 0 input reminder Figure 147 2 Evening input reminder (a) (b) Figure 18

Claims (1)

[Claims] (1) Connectable to the programmable controller (2), and selectively moves a plurality of pre-registered image blocks to a predetermined position on the image display section (63) based on status information MD sent from the programmable controller. In the image display control device for drawing the plurality of image blocks, the image display control device includes: a) a graphic data storage means (62) storing graphic data GD for drawing the plurality of image blocks; and b) for identifying a specific image block. event code TN,
A display change processing word W including address data indicating the storage position in the programmable controller (2) of the status information MD corresponding to the image block and coordinate data HD indicating the display position of the image block is stored for each image block. c) decodes the display change processing word W in the event data storage means (61) and stores a predetermined address in the programmable controller (2) based on the address data; While reading the status information MD, based on the status information, graphic data GD of the image block to be changed in display,
a system control means (6) for creating a graphic control signal for drawing at a position according to the coordinate data HD of the display change processing word W and sending it to the image display section (63); d) in an operation confirmation mode; an input section (66) for inputting an event code TN for specifying an image block to be subjected to operation confirmation and simulated state information that becomes the basis for changing the display for the image block; a simulated state information storage means (65) for storing state information; and f) in the operation confirmation mode, based on the input event code TN and data in the simulated state information storage means (65),
Display change processing word W in the event data storage means (61)
A simulated motion control means (6) for performing a simulated motion according to
4) An image display processing device comprising: