JP2003067009A - Monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitoring system which makes it easy to correct and develop a plurality of monitor programs and can display much monitoring information. SOLUTION: This system is equipped with one monitoring operation execution means (table contents processing program) 1 which operates on a multitask OS and is capable of multiple actuation and operation tables 2a, 3a and 4a in which display and operation contents data prepared to perform desired monitoring operation by being applied to the monitoring operation execution means 1 are described. The display and operation contents data of those operation tables 2a, 3a, and 4a are applied to the monitoring operation execution means 1 in multiple operation to generate a plurality of monitor means 2, 3K and 4, A new monitor means (monitor program) can be obtained without development from a program source nor correction by altering and editing the display and operation contents data of the operation tables.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring system for monitoring various operation data of a controlled device via a programmable controller (target system) for controlling the controlled device.

[0002]

2. Description of the Related Art A plurality of monitor devices are realized on a multitasking OS and communicate with a target system (programmable controller) so that a large amount of operation data relating to a control target device controlled by a program controller can be monitored. There is a monitoring system (for example,
JP-A-11-327612).

[0003]

However, in such a conventional monitor device, each monitor device (monitor program) has been developed or changed for each control target device. Since development or modification / modification of this program was performed from the source of each monitor program, a great deal of effort was required for development / modification, such as recompiling the modified and modified program and verifying its operation. It is an object of the present invention to provide a monitoring system in which a plurality of monitor programs can be easily modified and developed and a large amount of monitoring information can be displayed. Next, in the conventional monitor program, a plurality of operations are described in a sequence formula, and in order to realize the monitor operation, even if processing is performed from the beginning to the end of the program, it does not stop there, and the processing from the beginning is repeated. As described above, once activated, the programs are constantly scanned to monitor and operate. Therefore, when operating a plurality of monitor programs on a multitasking OS as in the conventional case, a plurality of monitor programs are There is also a problem that such a monitoring system cannot be adopted because the processing capacity is insufficient unless the computer system has a high processing capacity in order to process the periodic scan in parallel. The present invention is to construct a monitoring system that can be adopted even in a computer system with a low processing capacity by operating these monitoring programs only when necessary. Further, another object of the present invention is to provide a monitoring system that can specify various display methods when displaying by using the referred data. Furthermore, it is an object of the present application to provide the above-mentioned monitoring system that can more easily change the access target of data regarding the monitor operation.

[0004]

According to the monitoring system of the present application, a plurality of monitor means are operated on a multitasking OS, and data is exchanged with a target system to display a screen or the like. A monitor operation executing means operating on a multi-task OS and capable of multiple activation, which is a display given by an operation table, a display according to operation content data,
The monitor operation executing means for performing an operation and the plurality of operation tables describing the display and operation content data applied to the monitor operation executing means are provided, and the display of the plurality of operation tables and the operation content data are operated in a multiplexed manner. It is characterized in that a plurality of monitor means can be configured by applying each to the monitor operation executing means, and the monitor means and the target system are connected by a communication means for exchanging data.

According to this, the monitor operation executing means becomes the monitor means for executing the monitor operation in accordance with the series of display and operation content data described in the operation table by applying the operation table. Display of,
By changing or editing the operation content data, a new monitor means (monitor program) can be obtained without developing or modifying it from the program source.
Development and modification work of multiple monitor programs becomes extremely easy. Further, since a plurality of different monitor means operate on the multitasking OS and a plurality of different operation tables are applied to one monitor operation execution means that can be activated multiple times, the communication means is used. It is possible to display a lot of monitor information that is collected. Multitask O
As S, it is desirable to adopt WINDOWS (registered trademark), which is highly popular.

The operation table is a logic table in which all the operations of the monitor means realized by the monitor operation executing means are described in sequence, and a function in which display and operation content data are described by referring to the logic table. A table and an object table that is referred to by a function table and has access target information of data used for a monitor operation, and the logic table includes an operation that includes the logic table only when a predetermined event occurs. The event condition may be defined in advance so that the monitor operation based on the table is executed only for one scan. According to this, in the case where the monitor operation is described in the logic table in a sequence manner, a specific event (event from the OS) is constantly compared with the case where the scan is continuously performed from the beginning to the end of the sequence without stopping. However, it may be an event from a specific program), and after executing one scan, it will wait for event notification again, so unnecessary processing will not be repeated, so a computer system with low processing capability Also in this, the present monitoring system can be adopted.

The reference drawing function, which is described in the function table and is used to display a screen by referring to the object table, uses or processes the data specified in the referenced object table to display on the screen. The display method can be specified in various ways, and the monitor operation executing means is provided with display control means for interpreting the display method and performing display control according to the interpretation. According to this, the attribute of data is converted from a numerical value into a character string and displayed, the numerical value is converted into a graphic display (such as a bar graph) and displayed, or the content of a certain data is used as a condition. It is possible to control output of various state data to the screen, such as controlling display and non-display of data, and displaying as different figures.

Further, in the object table, the access target information of the data is indirectly described, and the indirect description data is specified separately outside the object table, so that the access target of the data specified in the object table is made variable. preferable. According to this
When using a large number of object tables in which the specified access targets are fixed and described, if you want to apply an access target different from the access target to those object tables, you need to modify these many object tables themselves. On the other hand, when the access target is indirectly described, only the indirectly described data that has been indirectly described needs to be changed separately, so that the object table itself does not need to be modified or changed.

In the monitoring system of the present application, a plurality of monitor means are operated on the multitasking OS, and data is exchanged with the target system to display a screen or the like.
One monitor operation executing means that operates on the multitasking OS and can be activated multiple times, and a display that is applied to the monitor operation executing means and is prepared to perform a desired monitor operation,
A plurality of monitor means having a plurality of operation tables describing the operation content data, and a plurality of monitor means constituted by applying the display of the plurality of operation tables and the monitor operation executing means operating the operation content data in a multiplexed manner, respectively; Abnormality information collecting means provided separately from the monitoring means for collecting abnormal data of the target system in real time, data recording means for constantly collecting various data from the target system and writing it in a recording file, the various monitoring means, abnormality The monitoring means includes an information collecting means, a data recording means, and a communication means for connecting the target system. After the first activation, each monitor means performs a monitor operation for one cycle at a preset event and waits for the next event. It is characterized in that

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A description will be given below of an example in which various machine tools such as a large number of machining centers are arranged in a line and applied to a transfer machining line for machining a workpiece while conveying it. The monitoring system of the present application is installed in a personal computer PC for use, and
One monitor operation executing means (table content processing program) 1 that operates on a multitasking OS such as NDOWNS (registered trademark) and can be multi-started, and is applied to the monitor operation executing means 1 to perform a desired monitor operation. A plurality of operation tables 2a, 3a, 4a describing display and operation content data prepared for this purpose are provided. The display of the plurality of operation tables 2a, 3a and 4a and the operation content data are applied to the monitor operation executing means 1 that operates in a multiple manner, respectively, so that the plurality of monitor means 2, 3 and 4 (in this case, abnormality display means, tool Information display means, production information display means).

In addition to the monitoring means 2, 3 and 4, the abnormality information collecting means 5 for collecting abnormality data of the target system in real time and the machining center M.
./C1, M / C2 ... and a programmable controller (PLC1, PLC2) that monitors various operating states of the machining centers M / C1, M / C2.
Data recording means 7 which constantly collects various data from the target system and writes the data in the recording file 6.
And the above-mentioned various monitor means 2 to 4, abnormality information collecting means 5, communication means 8 for connecting the data recording means 7 and a large number of PLCs 1, PLC 2 ..., Monitor means 2 to 4, abnormality information collecting means 5, data The recording means 7 and the communication means 8 are provided with a task management means 9 for managing activation and termination. Reference numeral 10 is a CRT for displaying monitor contents, and 11 is an input means such as a mouse or a keyboard.

First, a plurality of operation tables 2a, 3a, 4
a is here for real-time abnormality display 2
a, a tool information display 2b, and a production information display 2c by the recording file 6 recording the production information are prepared. Each operation table 2a, 3a, 4a is a logic table in which a plurality of operations performed by the monitor units 2, 3, 4 are described in sequence, and a screen configuration of a monitoring screen called by the logic table and its screen configuration. Function table that describes the group of commands related to data display in text, logic table,
Alternatively, it is composed of a combination of object tables that describe data access information such as data output destinations and reference destinations that are referred to in the function table.

The case of displaying tool information will be described below. In the operation table 3a for displaying tool information, an initialization unit 20a is provided at the beginning of the logic table 20. Here, for example, an event condition is described, such as where on the screen the mouse is clicked to activate the event. In the example of FIG. 3, first, an identifier for setting the event valid mouse area is described, and subsequently, for the event A, the event B ...
Each setting area data (on the screen) is described. By this, several mouse click effective areas are set on the screen, and when the mouse is clicked on that part, the event set on that part is effective. Has been set. In addition to this, as the event condition, it is possible to set an event that occurs at a predetermined time (for example, every second), an event that occurs from another application, etc., treat the event occurrence as a flag, and combine those flags. It is also possible to set event conditions by using the above.

In the case of the screen of FIG. 2 showing the tool information display screen, several rectangular areas (first page, previous page,
The following page, production information, and end) are set. Here, the events A, B, and C are "first page", "previous page", and "respectively".
It is also assumed that a rectangular area "correction" corresponding to the event "D" is set in the upper right part of the screen corresponding to "the subsequent page". The same applies to the case where each screen of the other monitor means 2 and 4 is configured. 8 (abnormality display screen in FIG. 8 and production information display screen in FIG. 9). The screen display of the rectangular area itself is drawn by a simple drawing command of the function table 21 which will be described later. Function table 21 and object table 2 for displaying the initial screen (first page)
Each identifier for calling 2 and table name data for calling 2 are described.

The logic table 20 includes an initialization unit 20.
A main processing unit 20b is provided subsequent to a. The main processing unit 20b is a part surrounded by an identifier "MAIN START" indicating the beginning of the main processing unit 20b and an identifier "MAINEND" indicating the end of the main processing unit 20b. In the main processing section 20b, the processing performed when the event notification by the mouse is used as a determination condition is described in text following the condition identifier, and all processing performed by the tool information display means 3 is performed. The operation of is described in sequence in order.

In the case of tool information display, all screen configurations (line frames or title characters) are the same, and the data displayed there are different. Therefore, the record number reference destination table 2 indirectly specified by the object table 22 described later.
3 (FIG. 7) is performed to read data corresponding to the screen to be displayed from the reference file DAT1. Five pieces of tool information are displayed here, and since one record in the reference file DAT1 corresponds to each tool in order as described later (FIG. 6), the head information in the main processing unit 20b is set. In the page display process, the record number in the record number reference table 23 is set to the initial value (1
Is set to 5), and in the previous page display processing, the record numbers in the record number reference table 23 are decremented by "5" each, and "5" is added to the five record numbers currently displayed. In the subsequent page display process, the record numbers in the record number reference table 23 are incremented by "5" each, and "5" is added to each of the five record numbers currently displayed. The process of setting the record numbers that are larger by one is performed. These calculation processes are described after the condition identifier for discriminating each event, and are executed when there is a corresponding event.
Similarly, when "Modify" on the screen is clicked after the event discrimination identifier of the input process as the process D,
As shown in the lower figure of Fig. 2, another window prompting for input is displayed on the screen, the display data to be modified is selected on the screen, and when the correction data is input for that data, the selected display data is recorded. It describes a process of rewriting the contents of the reference file DAT1 with new and corrected data.

Following the main processing section 20b, a macro description section 20c is provided. In the macro description unit 20c, some common processes commonly used in each process of the main processing unit 20b are described. During the process described in the main processing unit 20b, common processing of the macro description unit 20c is performed. The process is called.

Next, the function table 21 for displaying the tool information is shown in FIG. 4, and the simple drawing function "DRA which does not refer to the object table 22 is used.
After "W", the title "Tool information", the "Current value" in the data display table, the "Tool number", the "Station used, the machining location", the "First page" in the mouse click area, etc. Character string drawing command (TE) for drawing a character string
XT), or a frame line drawing command (BOX (rectangle drawing), LINE (line drawing)) for drawing the frame line of the data display table.
Is described together with display position data, character size, and other information necessary for drawing.

Further, in the function table 21,
A reference drawing function "TEMPLATE" is described. In the reference drawing function, the object table number to be referred to, the drawing command, the information necessary for drawing, and the display method are designated after the function "TEMPLATE". For example, when it is desired to display the binary data referenced by a certain object table number as a decimal value, the drawing command "TEXT" is combined with "VALUE" which specifies the display system as a numerical value, and after that, a "decimal display Transformation. When the character string data designated by the object table number is output as a character string on the screen as it is, the drawing command "TEX
"STR" and "STRIN" to specify the display method as a character string
It is described in combination with "G".

Not limited to conversion between character string data and numerical values, the present invention further specifies graphic drawing "circle: CIRCLE" or "line: LINE" as a drawing command.
It is also possible to describe conditions for display in the display format. For example, if "Circle" is specified as a drawing command, and during the display method, it is simply "Circle" until the data indicated by the referenced object table number reaches a certain value, but if it exceeds a certain value When a condition such as "paint a circle in yellow" is designated, the display control unit 63, which will be described later, interprets the described condition, and the screen is displayed as if the lamp was lit. In addition, the "line" as a drawing command is specified, and the end point data of the line drawing start point and end point position data, which is necessary when displaying the "line" on the screen, is indicated by the referenced object table number. When a condition to make it proportional to the previous data is specified together with a mathematical expression, the condition described by the display control means 63, which will be described later, is interpreted and corresponding to the previous data indicated by the object table number,
It is possible to display such that the length of the line is determined. An actual description of this point is given by the equation (1) described later. Of course, even in the display method after the above-mentioned drawing command, a display method including such a condition can be described.

A large number of object tables are prepared for one operation table. Object table numbers are sequentially allocated to the object table, and each allocated object table includes a PLC number, a device number in the PLC, and a communication data size, which are targets of data reading and writing. Or (Fig. 5 (b)), or the file name of the state data file to be referenced and the position of the data content to be referenced in the data specified by the file name.
Data position information (access information) is recorded (FIG. 5).
(A)).

As shown in FIG. 5A, two object tables 22 for displaying tool information are provided for each tool. Object table (PLC number 1001 for tool T1) that specifies the PLC number, device number, and communication data size reference destination for reading the current number of times each tool has been used, each character string data for each tool number, and usage The station and the object table that designates the reference destination of the character string data of the machining point (the tool T1 has the number 1002) are paired for one tool (T1). In these tables, "FILEDAT
The reference file DAT1 is designated as the reference destination file by the description of "1", and the record number assigned to each tool in the file DAT1 is referred to the record number reference table 23 separately designated by "@ ***". By referring from the beginning and further specifying the data position in the record of the reference destination file DAT1, only the necessary part is cut out from the data in one record.

The record number reference table 23 is shown in FIG.
As described above, there are as many reference destinations as the number of tools displayed on one page. Here, since five tools are displayed on one page, five reference destinations (101 to 105) are secured.
In the case of the initial screen and the top screen, "1 to 5" is set to the data of this reference destination, and when an event occurs in which the page display is switched in that state, the main processing unit 20b performs the arithmetic processing. , The processing result is reflected,
Tool numbers of five tools corresponding to the screen to be displayed are set.

The reference file DAT1 (FIG. 6) designated by the object table 22 is assigned one record for each tool, and record numbers are assigned in order from the beginning. That is, as the data of the record number 1, "PLC number, device number, communication data size for reading the current value of the tool T1" is stored in the n-byte area from the beginning.
In the subsequent m-byte area, "T1" character string data, used station "ST1", processing point "15 mm"
Character string data such as "hole" is recorded. As data of record number 2, PLC number, device number, communication data size, "T" for reading the current value of tool T2.
The character string data of 2 ", the use station" ST2 ", the machining point" 20 mm hole "and the like are recorded, and the same applies to the tool T3 and thereafter.

Therefore, by referring to the first n bytes of the data of one record in the reference file DAT1 in the object table 22, "PL
"C number, device number, communication data size" is obtained, and the character string data of "tool number, use station, machining point" is obtained by referring to the subsequent m bytes. Also, in the object table 22, The record number to be referred to in the reference file DAT1 is not directly described, but indirectly designated as the record number reference destination in the object table 22, and the indirect designation data is designated outside the object table 22. Therefore, when trying to change the reference destination (record number), there is an advantage that it is only necessary to change the data in the portion (record number reference destination table 23) in which the indirectly designated data is set without changing the object table 22. .

In the tool information display screen described above,
Function table 20, object table 2
1 has only one each, even if you switch the screen,
Although there is no change in these tables, if the screen display configuration is different for each screen (each process), basically, when performing each process, the function table for each process and its function table The table name is described in the main processing unit 20b together with the table call identifier so that the object table for each process referred to by can be called.

Next, the abnormality information collecting means 5 for detecting an abnormality in real time constantly monitors the state of a specific abnormality detecting device of each PLC. When the abnormality is detected, the abnormality display means 2 is activated and displayed. It is designed to operate. The abnormality display means 2 (abnormality display program) is also generated by applying the operation table 2a for abnormality display to the monitor operation execution means 1. In the operation table 2a in this case, the initial screen as shown in the upper diagram of FIG. 8 is set,
By clicking "Details", a detailed diagram of the location where the abnormality occurred is displayed. That is, in the initial screen, the function table for displaying the line frame and the character (numerical value) data for notifying the occurrence of the abnormality and the corresponding object The table is used, but when "detail" is specified, a function and an object table for drawing the abnormal station and the abnormal place are used. Depending on the state, an application other than the abnormality display means can be activated.

The production information display means 4 displays the number of processings for each type of processed work on the screen. In the initial screen, the machined work is shown by "numerical values" (upper part of FIG. 9), but for graphic display, there is prepared one using the reference drawing function as the function table for the second page. In this example, if you click "Graphics" at the bottom of the screen, the end point of the "Line" will be set to the position corresponding to the number of pieces to be machined, corresponding to the work type indicated in the referenced object table, so that the number becomes a bar graph. As you can see, the function table is created. In this case, the functions described in the function table will be described with reference to the work WR1. TEMPLATE, the object table number that refers to the machining number of WR1, LINE, the starting point (X1,
Y1), end point (X2, Y1), WILD, arithmetic expression: X2
= X1 + length in the X-coordinate direction proportional to the reference data (number of processes) in the object table, line thickness ... (1) Here, "WILD" and below indicate the display method, "WILD" indicates the proportional operation method, and indicates that the result based on the expression specified by the operation expression is reflected on the X coordinate of the end point. . In the screen display, the horizontal direction is the X coordinate and the vertical direction is the Y coordinate. When the workpiece machining number data S1, S2 ... Are recorded as data in a specific device of the PLC, as the object table, as shown in FIG. 5B, the reference PLC number, the reference device number, the communication A direct description of the data size is used.

The monitor operation executing means (monitor operation executing program) 1 for reading these operation tables 2a, 3a, 4a comprises a logic processing section 50 and a function table processing section 60. As shown in FIG.
The event notified from the OS is the operation table 3a (2
a, 4a) and the event checking means 51 for judging "whether it is valid" for the monitor means 3 (2, 4) generated by the monitor operation executing means 1, and if valid, the monitor means 3 (2) 4) execution start means 52 for starting execution of the main processing unit of the logic table, a plurality of processes described in the main processing unit are processed from the beginning in a sequence expression, and a process corresponding to the event condition is identified by an identifier and a process. Execution means 53 for interpreting the contents, "MAI
N END ”is provided for terminating the execution, and when" MAIN END "is discriminated, the process is terminated and the next event is waited, and the main processing unit 20b is returned to the beginning so as not to repeat the processing. is there. This is very important when simultaneously executing a large number of sequence type monitor programs. In other words, in a normal sequence type monitor program, the cycle from the beginning to the end of the program is constantly repeated, so if multiple monitor programs perform such an operation, it may not be possible to perform monitor processing on a computer with a high processing speed. However, in the event-driven system in which the main processing unit 20b is processed after processing for one cycle from the beginning to the end, there is no constant repetition, so the load on the computer can be reduced, and a computer system with low capability is sufficient. It can be processed.

In the function table processing section 60,
Identification means 61 for identifying the function described in the function table referenced from the logic table
And an execution unit 62 that executes a simple drawing process that does not refer to an object table and an execution unit 63 that executes a reference drawing process that refers to an object table, corresponding to the function identified by the identification unit 61. . The executing means 62 for executing the simple drawing process interprets a drawing command following the simple drawing function to generate a "character string" and a "graphic (box, line, circle, etc.)" based on the specified drawing information. Draw on the screen. Further, the execution unit (display control unit) 63 that executes the reference drawing process interprets the object table and the drawing command following the reference drawing function and performs a process of displaying on the screen in a method specified by the display method.

The task management means 9 is activated at the same time when the monitoring system is activated, and the tool information display means 3,
The start-up means 70 for controlling the start-up of the abnormality information collecting means 5, the data recording means 7, and the communication means 8 and the end of the monitor device
Stop means 71 for closing all programs is provided. The data recording means 7 collects designated data from the PLC at a preset designated time, and records the operating state (abnormality history) of the machine tool in the recording file 6, for example. The data recording means 7 can also start another application based on a time table (not shown). Communication means 8
Are various monitor means 2 to 4, abnormality information collecting means 5, data recording means 7, PLC and personal computer P.
It has a plurality of data transfer areas for transferring data to and from C internal files (reference file DAT1, recording file 6, etc.) (FIG. 12), and monitor means set in the plurality of data transfer areas. When the communication requests from the like are processed in order from the higher order and the necessary data is returned to the data request source, the communication request set in the next communication area is processed.

When the task management means 9 is activated, the tool information display means 3, the communication means 8, the recording means 7, and the abnormality information collecting means 5 are activated respectively. The tool information display means 3 is generated by applying the operation table 3a for tool information display to the monitor operation execution means 1 activated on the multitasking OS. The logic table 20 is read and the initialization unit 20
a is executed, the event effective mouse area is set,
The function table 21 and the object table 22 for the initial screen (top page: upper diagram of FIG. 2) are read,
The record number reference table 23 has an initial value "1-5".
Is set. This makes the object table number 1
The record number 1 of the data file DAT1 is 001 and 1002 (for the tool T1), and the record number 2 of the data file DAT1 is 1003 and 1004 (for the tool T2) to be 1005 and 1006 for the tool T3. Is set to record number 3, 1007 and 1008 for tool T4 is set to record number 4, and 1009 and 1010 for tool T5 is set to record number 5. For example, in object table number 1001, the current value of tool T1 is read. "
The position of "PLC number, device number, communication data size" is designated, the PLC number, device number, and communication data size are read from the data of record number 1 of the reference file DAT1, and the PLC and the communication means 8 are used. While communication is performed and data of the specified device is received,
In the object table number 1002, "T1""S
The position of the character string data of T1 "15 mm hole" is designated, the data is read from the data of the record number 1 of the reference file DAT1, and the screen as shown in the upper diagram of Fig. 2 is displayed. After the processing of the unit 20a, the main processing unit 20b is not executed and waits for an event.

On the other hand, recording means 7 and abnormality information collecting means 5
Also, the recording means 7 is operating simultaneously on the multitasking OS, and the recording means 7 continues to record the specified data from the PLC via the communication means 8 at the preset specified time and to the recording file 6. Further, the abnormality information collecting means 5 is also simultaneously activated on the multi-task OS to detect the PLC abnormality information in real time. At this point, the abnormality display means 2,
The production information display means 4 has not been activated.

In this state, when the "back page" of the tool information display means 2 is clicked, a valid event for the tool information display means 3 occurs. At this time, the function table 21 and the object table 22 are the same as those read first, but the valid event for the tool information display means 3 causes the main processing unit 20b of the logic table 20 to be executed to identify the condition for each event. Process C that is performed sequentially from the beginning and event conditions match
(Post-page display process) is performed, and "1" in the record number reference table 23 is stored in the main processing unit 20b.
5 "is added to each" 5 "and changed to" 6 to 10 ". Thereby, the object table number 100
The data indicated by the record number reference destinations of 1, 1002 include:
The record number 6 of the data file DAT1 is designated to read the data for the tool T6. Similarly, the record number 7 of the data file DAT1 is designated as the data indicated by the record number reference destination of the object table numbers 1003 and 1004. Then, the reference record number (data reference destination) of the reference file DAT1 is changed such that the tool T7 data is read out. Therefore, as the tool information screen, the contents of the tools T6 to T10 are displayed as shown in the lower diagram of FIG.

When an abnormality is first detected by the abnormality information collecting means 5 from the start of monitoring, the abnormality information collecting means 5 activates the abnormality display means 2. The abnormality display means 2 is
The monitor operation executing means 1 is multi-started on the multi-task OS, and the operation table 2a for displaying an abnormality is applied to the monitor operation executing means 1 to generate the screen, and the screen as shown in the upper diagram of FIG. Display on top. At this point, the production information display means 4 has not been activated. When "Details" is clicked after the abnormality display means 2 is started,
When a valid event for the abnormality display means 2 occurs, the monitor operation execution means 1 that is generating the abnormality display means 2 determines that the event is valid, and processing (detailed display screen display) is executed on the condition of the event, and the station Is displayed on the screen (Fig. 8, bottom). Further, after the abnormality display means 2 is activated, an event occurs when the abnormality information collection means 5 detects a change in the abnormality content or the number of abnormalities, and the event is notified to the abnormality display means 2. The abnormality display means 2 validates the event and displays the newly generated abnormality content on the initial screen in the upper diagram of FIG.

When "production information" is clicked on the tool information display screen while these are activated, the monitor operation executing means 1 operating in the operation table 3a for tool information display is triggered by the event. , The operation table 4a for displaying production information is read. As a result, instead of the tool information display screen, the production information display screen is displayed, and the production number for each work type recorded in the device of the predetermined PLC by communication with the PLC is displayed on the screen (FIG. 15). . On the initial screen (upper part of FIG. 9), the numerical data of the number of products produced is simply displayed as numerical values. However, if "graphic" is clicked, a valid event for the production information display means 4 occurs, the main processing unit of the logic table of the production information display means 4 is executed, and "
The process corresponding to the event condition of clicking the "graphic", that is, the "bar graph display process" is performed based on the description of the reference drawing function of the above-mentioned formula (1). Here, the tool information display means 3 Instead of this, the production information display means 4 is activated, but it is also possible to activate the monitor operation execution means 1 multiple times to activate the tool information display means 3 and the production information display means 4 at the same time. In addition to the above, the monitor means may include an abnormality history display means, a machine operating state display, etc. In this case, the display form of the screen may be changed by the data described in the operation table. Therefore, the generation of another monitor means is extremely easy.

[0037]

As described above, in the present invention, the display for causing the monitor operation and the operation data are described in the operation table,
The display and operation data are applied to one monitor operation executing means that can be activated multiple times so that the monitor operation executing means interprets and processes the description of the operation data and displays and executes the content described as the operation data. Since a plurality of monitor programs are realized by the above, the development and modification of the monitor program need only be made and modified in the operation table, and the description is not made from the source program. In addition, since a plurality of monitor programs can be activated in multiple (parallel) on the multitask OS, a lot of monitor information can be viewed on one screen. Also,
After the first activation, the monitoring means performs a one-cycle monitoring operation by an event-driven method by a predetermined event, and thereafter waits for the next event, so that the monitoring operation is performed by the sequence method. Even when a plurality of monitor means are processed in parallel on the multitask OS, the load on the computer that executes the monitor program can be lightened as compared with the case where the sequence processing is constantly repeated. Further, since the reference data position specified in the function table is specified outside the function table, it is easy to change the reference destination without changing the function table.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of a monitoring system.

FIG. 2 is a tool information display screen.

FIG. 3 is an explanatory diagram of a logic table.

FIG. 4 is an explanatory diagram of a function table.

FIG. 5 is an explanatory diagram of an object table, (a)
Is an indirect description method, and (b) is a direct description method.

FIG. 6 is a diagram showing a reference file referred to by an indirect description type object table.

FIG. 7 is a diagram showing a record number reference destination table referenced by an indirect description object table.

FIG. 8 is an abnormality display screen.

FIG. 9 is a production information display screen.

FIG. 10 is a diagram showing a monitor operation executing means.

FIG. 11 is a diagram showing task management means.

FIG. 12 is a diagram showing a shared memory of a communication unit.

FIG. 13 is a diagram showing a monitor screen in a state in which monitor means are activated in a multiple manner.

[Explanation of symbols]

1 Monitor Operation Execution Means 2a, 3a, 4a Operation Table 2 Abnormality Display Means (Monitor Means) 3 Tool Information Display Means (Monitor Means) 4 Production Information Display Means (Monitor Means) 6 Recording File 7 Data Recording Means 8 Communication Means 9 Tasks Management means 20 Logic table 21 Function table 22 Object table 23 Record number reference destination table 63 Display control means PLC1, PLC2 ... Programmable controller (target system)

Continued front page    (72) Inventor Masahiro Koike             13 Heights Old Kuroda Castle, Kisogawa Town, Haguri District, Aichi Prefecture             Castle 312 F-term (reference) 5B098 GC01 GC04 JJ06 JJ07                 5H220 BB10 BB12 CC09 CX06 CX08                       HH01 JJ12 JJ53 JJ59 KK06

Claims (5)

[Claims] 1. A monitoring system in which a plurality of monitor units are operated on a multitasking OS and data is exchanged with a target system to display a screen, etc., and operates on the multitasking OS. One monitor operation execution means capable of multiple activation, a display given by an operation table, a display according to operation content data, and a monitor operation execution means for performing an operation, and a display and an operation applied to the monitor operation execution means A plurality of operation tables describing content data, display of a plurality of operation tables, and application of the operation content data to the monitor operation executing means in multiple operations to enable a plurality of monitor means to be configured. A monitoring system characterized in that the monitor means and the target system are connected by communication means for data transfer. Tem. 2. The operation table includes a logic table in which a plurality of operations of the monitor means realized by the monitor operation executing means are described in sequence, and display and operation content data are described by referring to the logic table. The function table is composed of a function table and an object table that is referred to by the function table and has access target information of data used for the monitor operation. The logic table is based on the operation table only when a predetermined event occurs. The event condition is defined in advance so as to execute the monitor operation.
The described monitoring system. 3. A reference drawing function, which is described in the function table and is used to display a screen by referring to an object table, uses or processes the data specified in the referenced object table to display on the screen. 3. A display control means for interpreting the display method and performing display control according to the display method can be specified in various ways. Monitoring system. 4. In the object table, the access target information of the data is indirectly described, and the indirect description data is specified separately outside the object table, thereby making the access target of the data specified in the object table variable. 2. The method according to claim 2, wherein
The described monitoring system. 5. A monitoring system in which a plurality of monitor means are operated on a multitasking OS and data is exchanged with a target system to display a screen, etc., and is operated on the multitasking OS. A plurality of monitor operation executing means capable of multiple activation, and a plurality of operation tables describing display and operation content data which are applied to the monitor operation executing means and are prepared for performing a desired monitor operation are provided. A plurality of monitor means configured by applying the operation table display and the monitor operation execution means for operating the operation content data in a multiple manner, and the monitor means provided separately from the monitor means and collecting abnormal data of the target system in real time Means for collecting abnormal information,
Each monitor is equipped with a data recording means for constantly collecting various data from the target system and writing the data in a recording file, various monitor means, abnormality information collecting means, communication means for connecting the data recording means and the target system. The monitoring system is characterized in that after the first activation, the means performs a monitoring operation for one cycle at a preset event and waits for the next event.