JP3328107B2 - Monitor device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring device for monitoring the status of a robot or a numerical control device on an assembly line in a factory, and more particularly, to a programmable controller for monitoring the status of a robot or a numerical control device. The present invention relates to a monitor device for collecting information via a CRT and displaying a message regarding the failure of the device and an operation status on a CRT as the monitor device.

[0002]

2. Description of the Related Art FIG. 21 is a block diagram showing a schematic configuration of a conventional monitoring device for monitoring the status of a robot or a numerical control device on an assembly line in a factory. In the figure, 1 is a monitor device, 3 is a programmable controller (hereinafter, referred to as PLC), 5 is a CPU for operating the monitor device 1 and executing a monitor, and 8 is operating the monitor device 1 and executing a monitor. For storing the screen data read from the screen data file of the auxiliary storage device, a storage device 9 for storing the screen data file, and a communication device 6 for communicating between the PLC 3 and the monitor device 1. PLC provided in monitor device 1
Interface (hereinafter referred to as PLC I / F), 7
Is a monitor element composed of a CRT, and 10 is a keyboard.

FIG. 22 is a conventional block diagram. 1-
Reference numeral 3 denotes a display function for reading the device value of the PLC 3 via the PLC I / F 6 and displaying the read device value on the CRT 7. The display function 1-3 includes a program in a memory,
5 is executed.

FIG. 23 is a flowchart of the operation of a conventional online unit. In step S1-8, screen 1 is displayed. In step S1-22, the PLC device is read. In step S1-10, the read value is displayed.

[0005]

The above-mentioned prior art has the following problems. When transient communication and cyclic communication are mixed, PLC
Read devices in the order in which they appear on the screen. If there is a request for slow transient communication, cyclic communication cannot be performed unless the transient communication is completed, so that the CRT screen display is slow. For example, it takes 1 second to read and display 40 points of the PLC device. It took 2 seconds to read 80 points.

According to the present invention, the execution of the transient communication by the transient communication function and the execution of the cyclic communication by the cyclic communication function are performed in parallel, so that an appropriate screen display can be performed and the operability can be improved. It is intended to obtain a monitor device that can be improved.

[0007]

According to a first aspect of the present invention, a monitor device capable of appropriately displaying a screen and improving operability by simultaneously performing transient communication with a programmable controller and cyclic communication with its own unit is obtained. The purpose is to:

According to a second aspect of the present invention, an appropriate screen display can be performed by simultaneously performing the transient communication with the programmable controller and the cyclic communication with the own unit, thereby obtaining a monitor device capable of further improving operability. The purpose is to:

According to a third aspect of the present invention, in a monitor apparatus having a multitasking monitor function and a communication function, a monitor capable of performing high-speed screen switching by the communication function periodically checking a screen switching device. The aim is to obtain a device.

A fourth aspect of the present invention is a high-speed monitor apparatus having a large number of screen data by writing the data of the screen when switching the screen and using the screen data when the screen is switched again. It is an object to obtain a monitor device capable of switching screens.

According to a fifth aspect of the present invention, there is provided a monitor device for performing transient communication with various PLCs, wherein the data format length in the transient communication varies depending on the various PLCs, and data is efficiently transmitted and received by transmitting and receiving at the maximum possible format length of the various PLCs. It is an object of the present invention to obtain a monitor device capable of performing the following.

[0013]

[0014]

Means for Solving the Problems In the first invention,
A plurality of area memories each having a first memory area for storing cyclic communication data and a second memory area for storing transient communication data; reading cyclic communication data from the first memory area of the memory; reading data of the programmable controller via the second memory area for storing data, said plurality territory a first processing unit that performs monitor display, the constant communication with the programmable controller
The second memory area for holding the cyclic communication data of the local memory and performing the communication with the programmable controller based on the read request data from the second memory area for storing the transient communication data and responding. A monitoring device that monitors and displays the operation status of the device controlled by the monitor, searches for a device to be read from the programmable controller, and registers a device registration area and a device value.
A programmable controller reading setting means for setting a value of the device that searches a device value area of the memory for the programs stored with area, and communication management table for transient communication and cyclic communication, the flop
Reads the device of the programmable controller set in the device registration area of the program and other storage memory, and transits to reading the device value of that device.
When transient communication is required, transmission by transient communication is requested, and reading of the device value of the device is supported.
When performed in Lee click communication, said plurality of regions memory
The first of the memory area read cyclic communication data <br/> out of the read data or transients communication
A programmable controller reading means for writing the data to the device value area of the program or the like storage memory, and a request for transient communication to the plurality of area memories.
The second memo to save the definitive transient communication data
Set the read request data in the re-regions, and a transient communication means for returning a response from the programmable controller to the programmable controller reading means.

[0015] In the second invention, a first process of reading data from a cyclic communication data area of a two-port memory or reading data of a programmable controller via a transient communication data area of a two-port memory and displaying a monitor display. The device and the programmable controller connected to the control LAN are constantly communicated to the cyclic communication data area of the two-port memory to refresh the data, and to the read request data of the transient communication data area of the two-port memory. A second processing unit that communicates with the programmable controller and returns a response, and monitors the status of the device to be monitored and controlled .
In the monitor device in which the screen data is stored in the auxiliary storage device, a device to be read from the programmable controller is searched from the screen data, and the device registration area and the data are read.
A programmable controller read setting means for setting a value of the searched device in a device value area of a program storage memory having a device value area; a communication management table for performing transient communication and cyclic communication;
Reads the programmable controller device set in the device registration area of the memory, and
Transient communication is required to read device values
It requests the transmission due to Kiniwa transient communication, the de
Read device values of devices by cyclic communication
The two-port memory cyclic communication
From the data area by reading the cyclic communication data,
Programmable controller reading means for writing read data or data by transient communication to a device value area of the memory for storing programs and the like, and a request for transient communication for reading a transient communication data area of the two-port memory. set to the data, waits for a response from the programmable controller via the interface, programmable controller read hand the response
And transient communication means returning to the stage .

In the third invention, a schedule flag in which information for determining whether to execute communication with the programmable controller or to execute screen switching is set ;
And programs archival memory having an area for writing the device of interest during the screen switch, said schedule hula
Write to the information memory of the program and the storage memory for the program etc.
Periodically determine the contents of the device values for
Screen switching operation based on the schedule flag discrimination information
The above-mentioned program etc. which is the target of screen switching when entering the work
Means for switching the screen when the value of the device written in the storage memory is changed.

In the fourth invention, the currently used screen No. And the screen N used last time
O. , A device registration area for writing the current programmable controller device setting to be displayed on the monitor element, and a device for writing the result of reading the device set in the device registration area from the current programmable controller Value area and last use
A program that has a device registration area for writing the settings of the programmable controller device and a device value area for writing the result of reading the device set in the device registration area from the previous programmable controller.
A memory for storage ram such, when the screen switching, the screen has been previously used in the the picture <br/> surface switching NO. To determine whether the same by comparing the writing content of the writing memory, the same
If so, means for executing a request to use data of the previous device area area and the device value area in the memory for storing the program etc. are provided.

In the fifth invention, means for determining the data format length in transient communication with various programmable controllers, a memory for writing the data format length in transient communication with various programmable controllers, and various programmable controllers are provided. Means for making a request to communicate with the format length of the data in the adapted most efficient transient communication.

[0019]

The P set in the device registration area of the memory
The LC device is read, and when another station is designated by the station number, transmission is requested to the transient communication function. When the own unit is designated, the data is read from the cyclic communication data. Write the read data or the data from the transient communication function to the device value area of the memory.

A request for transient communication is set in the read request data of the transient communication data area,
Waits for a response from the PLC via the I / F and returns a response to the PLC reading function.

Further, it is determined by the schedule flag whether communication with the PLC is to be performed or screen switching is to be performed. If the screen switching is to be performed, the screen switching device in the memory is determined, and the value of the device is changed. Then, the screen is switched.

When a screen is switched, the next screen to be switched is the previous screen number in the memory. If matches
A request is made to use the previous device registration area and the device value area of the memory.

Also, the type of each PLC is determined, and
The LC determines the format length of data in different transient communications, and requests a format length suitable for various PLCs.

[0024]

【Example】

Embodiment 1 FIG. Purpose: This embodiment is intended to provide a monitor which displays cyclic communication (high speed) data without being affected by transient communication (low speed) in a monitor device which simultaneously performs transient communication (low speed) and cyclic communication (high speed). To get the device.

Overview: In this embodiment, two CPUs are provided, and one CPU communicates with a heavily loaded PLC.
The data of the cyclic communication is always communicated with the PLCs of all the stations and is refreshed to the 2-port memory. Transient communication data is communicated to the PLC when requested. The PLC reading function and the transient communication function are operated by multitasking, and the PLC reading function uses the registration monitor transmission / reception management table, and when the transient communication is required, the processing is passed to the transient communication function. The cyclic communication (high-speed) data is displayed without being affected by the transient communication (low speed) by reading the data of the cyclic communication from the two-port memory, passing the data to the display function, and displaying the data.

FIG. 2 of the first embodiment shows a system configuration using an FA controller. In the figure, 1 is a monitor device, 2 is a control LAN,
3 is the first PLC, 4 is the second PLC, 5 is the nth PLC
C and 6 are robot controllers for controlling the robot,
Reference numeral 7 denotes a numerical control device that controls a machine tool. The monitor device 1 displays data transmitted from the first PLC 3 to the n-th PLC 5 or displays the data of the connected first PLC 3
To send the work data to the n-th PLC 5. Control LAN
2 is a station number 0 for the monitor device 1, a station number 1 for the first PLC 3, a station number 2 for the second PLC 4, and a station number n for the n-th PLC 5
From the monitor device 1 and the first PLC 3 to the n-th PL
Connect C5. The first PLC 3 controls the numerical controller 7. The second PLC 4 is a robot controller 6
Control. The n-th PLC 5 operates like the first PLC 3 and the second PLC 4, and controls the devices.

FIG. 1 is a block diagram of one embodiment of a monitor device according to the present invention. In the figure, reference numeral 11 denotes a first memory serving as a storage memory such as a program operated by the first control device or a program for storing data used by the program, and 8 executes a program stored in the first memory 13. The first CPU 9 is a CRT that displays a character string or the like on a program executed by the first CPU 12.
Is a keyboard that receives data input by the operator of the monitor device 1 by a program executed by the first CPU 8, and 16 is a two-port memory in which programs executed by the first CPU 8 and the second CPU 13 exchange data. . Reference numeral 15 denotes a second memory for storing a program operated by the second control device and data used by the program; 13, a second CPU for executing the program stored in the second memory 15; PLC I / F for communication.

FIG. 3 shows an example of the screen data file. In the figure, data of screens 1 and 2 are registered. The screen data is composed of screen display data. In the screen display data, elements of each figure for displaying FIG. 4 are registered. For example, in the screen 1 display data of FIG. Numeral 2 indicates that a character “production target” is displayed at the coordinates x, y of the CRT 7 as a monitor element. NO.3
Indicates that the value of the PLC device D0 of the station number 1 is displayed at the position of the coordinates x and y of the CRT 7. NO. 9 is C
The device W of the own unit is moved to the position of the coordinates x and y of RT7.
When the value of 1 is 1, it indicates that a robot abnormality is displayed.

FIG. 5 shows an example of the memory 11. There are areas for device registration and device values.

The device registration area is an area for registering a device to be read. In FIG. 5, D0, D1, and W1 are registered, and D0 is assigned to the second PLC by the first PLC3.
D1 is read from the PLC4 of the above, and W1 is read from the two-port memory 16. W1 of the own unit is set to PL by the CPU 13.
Via PLC I / F14, PLC3, PLC4, P
Performs cyclic communication with LC5, and the data exchanged is 2
It is stored in the port memory 16. A first PLC 3,
The devices D0 and D1 of the second PLC 4 perform transient communication.

The device value area is an area in which the read device value is written. In FIG. 5, the first PLC
3, the second PLC 4, D0 read from its own unit,
The values 500, 100, and 20 of D1 and W1 are written.

Cyclic communication is performed by PLC3, PLC
4. Used to exchange short data with PLC5 at high speed. In cyclic communication, each station performs data communication periodically. For example, information that has been turned ON / OFF by the PLC 3 is as follows:
The information of all the stations can be read from the unit of the monitor device which can read the ON / OFF information in all the stations.

The transient communication is used to exchange a large amount of data at a low speed with a designated PLC when a request occurs. Transient communication can be performed 1: 1 with a designated station, and is performed between cyclic communication.

FIG. 6 shows an example of the memory 11. There is a communication management table area. The communication management table is a management table for performing transient communication and cyclic communication. The flag indicates that processing is in progress. The current schedule pointer indicates which device in the device registration area is performing.

FIG. 7 shows an example of the two-port memory 16. There is a cyclic communication data area and a transient communication data area. The transient communication data area includes a read request data area and a response area.

FIG. 8 is a block diagram, and 1-1 is FIG.
Is a screen setting function for interactively creating the monitor screen of FIG. 7 while watching the CRT 7 and writing the screen in the screen data file of FIG.
In the offline unit, a screen is created by the screen setting function 1-1. When changing the screen, the screen data file can be read and modified.

An initialization function 1-2 reads out a screen data file stored in the auxiliary storage device 12 and writes it into the memory 11. When displaying the screen, the auxiliary storage device 1
Since the data is read from the memory 2 at a low speed, it is written in the memory 11 in advance.

1-3 reads out the monitor settings registered in the memory 11 and displays them on the CRT 7, or reads out the values of the PLC devices and displays them on the CRT 7. For example, P
If the value of D0 of the LC device is 500, the CRT
7 is displayed as 500. The screen setting function 1-1, the initialization function 1-2, and the display function 1-3 consist of programs in the memory 11, and are executed by the CPU 8.

1-4 are based on the screen data in the memory 11,
A PL that searches for a device to be read from the PLC 3 and sets the value of the searched device in the device registration area of the memory 11
This is a C reading setting function.

Step 1-5 reads the PLC device set in the device registration area of the memory 11, and requests the transmission to the transient communication function when the station number is designated to another station.
When the own unit is specified, read from the cyclic communication data. This is a PLC reading function for writing the read data or the data from the transient communication function to the device value area of the memory.

A device reading function 1-6 is called when a value of a PLC device is read from the display function 1-3, and returns a device value in a device value area of the memory 11.

Step 1-7 sets the transient communication request to the read request data in the transient communication data area, waits for a response from the PLC 3 via the PLC I / F, and returns the response to the PLC reading function.

Initialization function 1-2, display function 1-3, PL
C read setting function 1-4, PLC read function 1-5, device read function 1-6, transient communication function 1-7
It comprises a program in the memory 11 and is executed by the first CPU 8.

FIG. 9 is a flowchart of the operation of the offline unit. The case where screen 1 and screen 2 are created will be described. In step S1-1, the screen 1 is created. In step S1-2, screen switching setting from screen 1 to another screen is performed. In steps S1-3 and S1-4, screen 2 is created in the same manner as screen 1. In step S1-5, the created screen and settings are stored as a screen data file in the auxiliary storage device. Steps S1-1 to S1-5 are performed by the screen setting function.

FIG. 10 is a flowchart showing the initialization function 1-2, the PLC read setting function 1-4, and the device read function 1-6. In step S1-6, the auxiliary storage device 1
The screen data file is read from 2 and written into the memory 11. A step S1-7 searches the screen data of the memory 11 for a device to be read, and sets the value of the searched device in the device registration area of the memory 11. Step S
In 1-8, the screen 1 is displayed. A step S1-9 reads the device in the device value area. Step S1-10
The device read from the PLC 3 is displayed. Step S1-6 performs an initialization function, and steps S1-8 and S1-10 perform a display function. Step S1-7
Is a PLC read setting function, and step S1-9 is a device read function.

FIG. 11 is a diagram showing a case where the power is turned on and the PL
It is a flowchart which shows C reading function 1-5. A step S1-11 reads the device set in the device registration area. In step S1-12, transient communication is performed when the station number is set to n, and cyclic communication processing is performed when the own unit is set. In step S1-13, it is checked whether or not transient communication is being performed. If it is being processed, the process proceeds to step S1-16. In step S1-14, in order to perform transient communication, the transient communication flag 23 in the communication management table is being processed, and the current schedule pointer is set. A step S1-15 issues a request for transient communication to the transient communication function 1-7.
Step S1-16 corresponds to the transient communication function 1-7.
Check if there is a response from. If the processing has not been completed, the process returns to step S1-11 to perform processing for the next device in the device registration area. In step S1-17, the end is set in the transient communication flag 23 of the communication management table. A step S1-18 sets the response of the transient communication 1-7 in the device value area. Step S
Steps 1-19 read from the cyclic communication data and set the current schedule pointer 24. Online Department 1
2 and 3 use the multitask function, allocate CPU time to each process for self-division, and perform a plurality of processes at the same time.

FIG. 12 is a flowchart showing the transient communication function 1-7 which is started up when the power is turned on. A step S1-20 receives the transient communication from the PLC reading function 1-5, and sets a read request in the transient communication data area. Step S1-21
Waits for a response from the PLC 3 via the PLC I / F, and returns it to the PLC reading function 1-5 when there is a response.

From the above, the following results were obtained.
Even during the transient communication with the PLCs 3 to 5, it is possible to read out the cyclic communication data of the own unit, and the screen display becomes faster. For example, P
1 second for LC device communication, 50 for cyclic communication
In the case of ms, display is performed at intervals of 50 ms.

Embodiment 2 FIG. Purpose: This embodiment is intended to solve the problem that even if the operator instructs to switch the screen, the response is poor.

Overview: In this embodiment, in a monitor device having a multi-task monitor function and a communication function,
The communication function performs high-speed screen switching by periodically checking the screen switching device.

FIG. 13 is a block diagram showing a schematic configuration of a monitor device according to this embodiment. The same components as those of the conventional configuration and the first embodiment will be described using the same reference numerals. In FIG. 13, reference numeral 2-1 denotes ON / OF for determining in advance whether the operator should execute communication with the PLC or execute screen switching.
The schedule flag 2-2 provided with the F information periodically determines whether or not the communication with the PLC or the screen is to be switched based on the schedule data 2-1. This is a screen switching function for performing switching.

FIG. 14 shows an example of the contents stored in a part of the memory 11. There is an area in which a target device is written at the time of screen switching. In FIG. 14, device D0 is written.

FIG. 15 is a flowchart showing the screen switching function 2-1. In step S2-1, a schedule flag for determining whether to communicate with the PLC or switch the screen is determined. In step S2-2, it is determined whether the contents of the screen switching device in the memory 11 have been changed.
That is, it is determined whether or not the content of the device D0 in FIG. 14 has been changed. In step S2-3, data is received from the PLC reading function 1-5, and a request for screen switching is made to the display function. Step S2-1 to step S2-3
Is performed by the screen switching function.

Embodiment 3 FIG. Purpose: This embodiment is intended to solve the problem that even if the operator instructs to switch the screen, the response is poor.

Outline: In this embodiment, in a monitor device having a large number of screen data, the screen data is written when the screen is switched, and the screen data is used when the screen is switched to the screen again. Screen switching.

FIG. 16 is a block diagram showing a schematic configuration of a monitor device in this embodiment. The same components as those of the conventional configuration, the first embodiment and the second embodiment will be described using the same reference numerals. In FIG. 16, reference numeral 11 denotes a memory for managing scheduling for data communication with the PLC, and 3-1 denotes a memory.
The screen data discriminating function, 3-2, displays the screen number of the currently displayed screen. Is stored in the memory 3-3. Is stored in the memory.

FIG. 17 shows an example of the memory 11. The memory 11 has current screen data and previous screen data.
The current screen data includes a device registration area 1 and a device value area 1. The previous screen data includes a device registration area 2 and a device value area 2. The device registration area 1 is a PL
The C reading function 1-5 is an area in which a device that requests reading from the PLC 3 is registered. In FIG. 17, D0 of the station number 1, D1 of the station number 2 and D1 of the own station are registered. The values of D0 of the station number 1, D1 of the station number 2 and D1 of the own station are transmitted from the PLC 3 via the PLC I / F. Is read. The device value area 1 is an area in which the current read device value is written to the PLC 3. In FIG. 17, P
D0 of station number 1 and D of station number 2 read from LC3
1 and the value of D1 of the own station, 500, 100, and 20, respectively, are written. The device registration area 2 is an area in which the PLC reading function 1-5 registers a device that has previously requested the PLC 3 to perform reading. In FIG. 17, station number 1
D10 of the station number, D11 of the station number, and D10 of the own station are registered, and the values of D10 of the station number 1, D11 of the station number 2, and D10 of the own station are read from the PLC 3 via the PLC I / F.
The device value area 2 is an area in which the value of the device that has previously been read from the PLC 3 is written. In FIG. 17, the values of D10 of station No. 1, D11 of station No. 2 and D10 of the own station, which were previously read from the PLC 3, 100, 200,
300 are respectively written.

FIG. 18 is a flowchart showing the screen data determination function 3-1. In step S3-1, reading of the memory 11 is performed, and it is determined whether or not screen switching has been performed by the screen switching device. Step S3-
In step 2, the currently used screen data is written to the memory 11. In step S3-3, the currently used screen No. Screen No. 3 used last time from the area where 3-2 is stored. Write to the area for storing 3-3. S
In the step 3-4, after the screen to be switched next is read from the memory 11, it is determined whether or not it is the screen used last time. Compare with 3-3. In step S3-5, if it is determined in step S3-4 that the screen to be switched is the same as the previously used screen, a request to read data of the previous screen is made to the PLC reading function 1-5. Step S3-1 to step S3-5 are:
The screen data determination function is performed.

Embodiment 4 FIG. Objective: In this embodiment, the format length of data in transient communication is different depending on various PLCs. However, since the same format length is used for transmission and reception to any type of PLC, a PLC capable of a long format length is used. On the other hand, it is intended to solve the problem of performing inefficient monitoring.

Overview: In this embodiment, in a monitor device that performs transient communication with various PLCs, the data format length in the transient communication varies depending on the various PLCs. Collect.

FIG. 19 is a block diagram showing a schematic configuration of a monitor device according to the present invention.
Embodiments 2 and 3 which are the same as those in Embodiment 3 will be described using the same reference numerals. In FIG. 19, 4-1 is a PLC data length determining function for determining the data length of the PLC, and 4-2 is a PLC data length flag.

FIG. 20 shows a PLC data length determining function 4-1.
It is a flowchart which shows. In step S4-1, since the format length of the transient communication differs depending on the various PLCs, the PLC reading function 1-5 determines the most efficient format length depending on the PLC to communicate.
Reading is performed from the PLC 3 via the I / F, and the efficient format length is selected. Step S4-2
Then, in step S4-1, the determination result of the format length of the transient communication of each PLC is written to the PLC data length data 4-2. In step S4-3, a request is made to the transient communication function 1-7 as to which transient communication communication format length is to be used for communication. Steps S4-1 to S4-3 are performed by the PLC data length determination function.

As described above, according to the monitor device of the embodiment of the present invention, it is possible to perform a screen communication by simultaneously performing the transient communication with the PLC and the cyclic communication of the own unit at a high speed. Operability has been improved.

The screen switching function checks the screen switching device periodically according to the schedule flag.
High-speed screen switching has become possible.

The screen data discriminating function writes the device registration data and the device value data of the current screen data into the memory when the screen is switched, so that when the screen is switched next, it is the previous screen switching. It is determined whether or not it matches, and when it matches, the device registration data and the device value data of the previous screen data are read out from the memory, and by displaying them on the monitor, faster screen display is performed. It became possible to do.

Since the PLC data length determination function determines the data format length in transient communication with various PLCs, transmission / reception can be performed with the maximum possible data length of transient communication data in various PLCs. , It has become possible to collect data more efficiently.

[0067]

[0068]

According to the first aspect of the invention, by simultaneously performing the transient communication with the programmable controller and the cyclic communication with the own unit, an appropriate screen display can be performed, and the operability can be further improved. A monitoring device can be obtained.

According to the second aspect , by simultaneously performing the transient communication with the programmable controller and the cyclic communication with the own unit, an appropriate screen display can be performed and the operability can be further improved. Can be obtained.

According to the third aspect of the present invention, in a monitor device having a multitasking monitor function and a communication function, high-speed screen switching can be performed by the communication function periodically checking the screen switching device. A monitoring device that can be obtained can be obtained .

According to the fourth aspect , in a monitor device having a large number of screen data, the screen data is written when the screen is switched, and the screen data is used when the screen is switched to the screen again. Thus, it is possible to obtain a monitor device capable of performing high-speed screen switching.

According to the fifth aspect of the present invention, in the monitor apparatus for performing transient communication with various PLCs, the data format length in the transient communication varies depending on the various PLCs. Thus, it is possible to obtain a monitor device capable of performing data collection.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a schematic configuration of a monitor device according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a system configuration according to a first embodiment of the present invention.

FIG. 3 is a diagram showing a screen data file according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a screen according to the first embodiment of the present invention.

FIG. 5 is a flowchart illustrating a memory according to the first embodiment of the present invention;

FIG. 6 is a diagram showing a memory according to Embodiment 1 of the present invention;

FIG. 7 is a diagram showing a two-port memory according to the first embodiment of the present invention.

FIG. 8 is a schematic diagram of a monitor device according to the first embodiment of the present invention.

FIG. 9 is a flowchart illustrating an operation of the monitor device according to the first embodiment of the present invention.

FIG. 10 is a flowchart illustrating an operation of the monitor device according to the first embodiment of the present invention.

FIG. 11 is a flowchart illustrating an operation of the monitor device according to the first embodiment of the present invention.

FIG. 12 is a flowchart illustrating an operation of the monitor device according to the first embodiment of the present invention.

FIG. 13 is a block diagram illustrating a schematic configuration of a monitor device according to a second embodiment of the present invention.

FIG. 14 is a diagram showing a memory according to a second embodiment of the present invention.

FIG. 15 is a flowchart showing the operation of the monitor device according to Embodiment 2 of the present invention.

FIG. 16 is a block diagram showing a schematic configuration of a monitor device according to Embodiment 3 of the present invention.

FIG. 17 is a diagram showing a memory according to a third embodiment of the present invention.

FIG. 18 is a flowchart showing an operation of the monitor device according to Embodiment 3 of the present invention.

FIG. 19 is a block diagram showing a schematic configuration of a monitor device according to Embodiment 4 of the present invention.

FIG. 20 is a flowchart showing an operation of the monitor device according to Embodiment 4 of the present invention.

FIG. 21 is a block diagram illustrating a schematic configuration of a conventional monitor device.

FIG. 22 is a functional diagram of a conventional monitor device.

FIG. 23 is a flowchart showing the operation of the conventional monitor device.

[Explanation of symbols]

1 monitor device, 2 control LAN, 3rd PL
C, 4th PLC, 5th PLC, 6 robot, 7 numerical controller, 8 first CPU, 9CRT,
Reference Signs List 10 keyboard, 11 first memory, 12 auxiliary storage device, 13 second CPU, 14 PLC I / F, 1
5 second memory, 162 port memory, 17 screen 1 data, 18 screen 1 display data, 19 screen 2 data, 20 screen 2 display data, 21 device registration area, 22 device value area, 23 flag, 24 current schedule pointer , 25 cyclic communication data area, 26 transient communication data area, 27 read request data area, 28 response area, 1-1 screen setting function, 1-2 initialization function, 1-3 display function, 1-4
PLC read setting function, 1-5 PLC read function, 1-6
Device reading function, 1-7 Transient communication function, 2-1 Schedule data, 2-2 screen switching function, 3-1 Screen discrimination function, 3-2 Currently used screen N
O. 3-3 Last use screen No. 4-1 PLC data length discrimination function, 4-2 PLC data length data.

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-6-89108 (JP, A) JP-A-3-54003 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04Q 9/00 G05B 19/048

Claims (5)

(57) [Claims] 1. A first method for storing cyclic communication data.
A plurality of regions memory having a second memory area for storing in the memory region and transient communication data, this double
A first processing unit for reading the cyclic communication data from the first memory area of the several-area memory, reading the data of the programmable controller via the second memory area for storing the transient communication data, and performing monitor display; The data is refreshed in the first memory area holding the cyclic communication data of the plurality of area memories by the steady communication with the programmable controller, and based on the read request data from the second memory area storing the transient communication data. A second processing unit that communicates with and responds to the programmable controller, and monitors and displays the operating status of the device to be monitored and controlled, and searches for a device to be read from the programmable controller;
Programmable controller read setting means for setting a retrieved device value in a device value area of a program or other storage memory having a recording area and a device value area, and a communication management table for performing transient communication and cyclic communication And reads the device of the programmable controller set in the device registration area of the program or the like storage memory, and reads the device value of the device.
When transient communication is necessary to read data from the device, request transmission by transient communication , and
When the device value can be read by cyclic communication
, Said plurality of areas from the first memory area of the memory reads the cyclic communication data, read data or the data programs by transient communication
Programmable controller reading means for writing to the device value area of the storage memory, and setting a transient communication request to read request data of the second memory area for storing transient communication data in the plurality of area memories, and setting a response from the programmable controller. Transient communication returned to the programmable controller reading means
And a monitor device comprising: 2. A first processing device for reading data from a cyclic communication data area of a two-port memory, reading data of a programmable controller via a transient communication data area of a two-port memory, and performing monitor display, and a two-port memory. To the cyclic communication data area of the memory,
The second method is to constantly communicate with the programmable controller connected to the control LAN to refresh the data, communicate with the programmable controller based on the read request data in the transient communication data area of the 2-port memory, and return a response. Equipped with a processing unit, monitor-controlled
Availability auxiliary storing screen data for monitoring of that device
In the monitor device saved in the device, from the screen data,
Search for a device to be read from the programmable controller and search for a device with a device registration area and a device value area.
Programmable controller read setting means for setting the value of the searched device in the device value area of the program storage memory, a communication management table for performing transient communication and cyclic communication, and a device registration area of the memory. Read the programmable controller device and read the device value of that device
When transient communication is necessary for the device , request transmission by transient communication , and
When the reading performed by the cyclic communication, the 2
The cyclic communication data is read from the cyclic communication data area of the port memory, and the read data or data obtained by the transient communication is stored in the program or the like.
A programmable controller reading means for writing to the device value area of the storage memory; and setting a transient communication request to read request data of the transit communication data area of the two-port memory , waiting for a response from the programmable controller via the interface, monitoring device and a transient communication means to return to the programmable controller reading means. 3. A program or the like having a schedule flag programmable controller with information to determine the execution of the execution or display of the switching of communication of is set, the writing area which device when the screen switching Storage memory, the information content of the schedule flag and the program
Device written to the storage memory
The contents of the chair value are periodically determined, and the schedule flag is checked.
Screen switching when entering the screen switching operation based on the discrimination information
Written to the program, such as storage memory for the example of the target
Claim 1 or請 characterized by comprising a means for performing the switching of the screen if there is a change in the value of Mareta device
The monitoring device according to claim 2 . 4. The screen number currently used. And the screen number used last time. , A device registration area for writing the current programmable controller device setting to be displayed on the monitor element, and a device for writing the result of reading the device set in the device registration area from the current programmable controller A program that has a value area, a device registration area for writing the settings of the previously used programmable controller device, and a device value area for writing the result of the previous reading of the device set in the device registration area from the programmable controller. an equal storage memory, when the screen switching, the screen was previously used screen and the switching NO. To determine whether the same by comparing the contents written writing memory, the programming if the same
Monitoring device according to any one of claims 1 to 3, characterized in that a means for executing the request for use of the data of the previous device region region and the device value area in the memory for storage ram etc. . Means for determining the format length of the data in 5. Transient communication with the various programmable controllers, it to the memory and various programmable controller to write the format length of the data in the transient communication with various programmable controller
Is monitoring device according to any one of claims 1 to 4, characterized in that a means for performing a request to communicate with the format length of the data in the most efficient transient communication adapted.