JP2001331436A - Online adjustment device and online adjustment method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that consistency can not be kept between respective maintenance tools 2 and an IO device 6 in the case that the plural maintenance tools 2 simultaneously perform the online adjustment of the IO device 6 or in the case that the other maintenance tool 2 interrupts and executes the online adjustment of the IO device while a certain maintenance tool 2 executes the online adjustment of the IO device 6. SOLUTION: At the time of succeeding in the acquisition of the using right of a field bus I/F device 15, the adjustment value of the IO device 17 is transmitted to the field bus I/F device 15 and the online adjustment of the IO device 17 is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an online adjustment apparatus and an online adjustment method for online adjusting an IO device connected to a field bus.

[0002]

2. Description of the Related Art FIG. 5 is a block diagram showing a conventional on-line adjusting device. In FIG. 5, reference numeral 1 denotes a personal computer, 2 denotes a field connected to a serial port of a controller 3, and is mapped on a main memory of a CPU device 4. Maintenance tool for accessing the 2-port memory of the bus I / F device 5, 3 for the controller, 4 for the CPU device of the controller 3, and 5 for the field bus I / F having the 2-port memory
The device 6 is an IO device connected to the field bus. FIG. 6 is a processing sequence diagram showing a conventional online adjustment method.

Next, the operation will be described. When the maintenance tool 2 adjusts the IO device 6 online, first, the user activates the maintenance tool 2 and displays an online adjustment screen (step ST1). As a result, the maintenance tool 2 shifts to a state of waiting for input of an adjustment value.

When the user inputs an adjustment value (step ST2), the maintenance tool 2 writes the adjustment value in the two-port memory of the fieldbus I / F device 5 and issues a request for transmission of the adjustment value to the IO device 6. (Step ST3). Fieldbus I / F device 5
Receives the adjustment value transmission request from the maintenance tool 2, transmits the adjustment value written in the two-port memory to the IO device 6 (step ST4).

When the IO device 6 receives the adjustment value from the fieldbus I / F device 5, the IO device 6 executes an online adjustment process according to the adjustment value (step ST5), and sends the execution result to the fieldbus I / F device 5. A reply is sent (step ST6). Upon receiving the execution result from the IO device 6, the fieldbus I / F device 5 returns the execution result to the maintenance tool 2 (step ST7).

When receiving the execution result from the fieldbus I / F device 5, the maintenance tool 2 displays information indicating that the online adjustment has been completed on the online adjustment screen (step ST9). In addition, maintenance tool 2
Issues an adjustment value transmission request,
Until the execution result is received from the / F device 5, the process shifts to a response waiting state (step ST8).

[0007] Depending on the IO device 6, it is necessary to perform on-line adjustment for a plurality of points. In this case, the process returns to step ST2.
Close the online adjustment screen (steps ST10 and ST10).
11).

[0008]

The conventional on-line adjusting device and on-line adjusting method are configured as described above.
Via the F device 5, the IO device 6 can be adjusted online. However, when a plurality of maintenance tools 2
Fieldbus I / F via network such as AN
When the plurality of maintenance tools 2 are connected to the device 5, the plurality of maintenance tools 2 can perform online adjustment of the IO device 6. Is performing online adjustment of the IO device 6,
When another maintenance tool 2 interrupts and performs online adjustment of the IO device 6, there is a problem that the consistency between each maintenance tool 2 and the IO device 6 cannot be maintained.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem. Even when a plurality of maintenance tools are connected to a field bus I / F device, an online connection between the plurality of maintenance tools and the IO device is provided. An object of the present invention is to provide an online adjustment device and an online adjustment method that can maintain the consistency of adjustment processing.

[0010]

An online adjusting device according to the present invention transmits an adjustment value of an IO device to a fieldbus I / F device when the usage right obtaining device succeeds in obtaining the usage right, and outputs the adjusted value to the IO device. The execution means for executing the online adjustment is provided.

[0011] The online adjusting apparatus according to the present invention is provided with execution means for terminating the online adjustment processing of the IO device when the use right obtaining means fails to obtain the use right.

The online adjusting apparatus according to the present invention is provided with a right-of-use acquisition means for releasing the right to use the fieldbus I / F device when the execution means completes the online adjustment of the IO device.

[0013] In the online adjusting device according to the present invention, when another tool has already acquired the right to use the fieldbus I / F device, the on-line adjusting device forcibly releases the right to use acquired by the other tool. A right acquiring means is provided.

[0014] The online adjusting device according to the present invention is characterized in that when another tool has already acquired the right to use the field bus I / F device, the right to use acquisition means for forcibly acquiring the right to use from the other tool is provided. It is provided.

According to the online adjustment device of the present invention, when the online adjustment screen is displayed, the fieldbus I / O
A right-of-use obtaining means for obtaining a right to use the F-device is provided.

According to the online adjustment method of the present invention, when the right to use the fieldbus I / F device is successfully acquired,
The adjustment value of the IO device is transmitted to the fieldbus I / F device, and the online adjustment of the IO device is executed.

According to the online adjustment method of the present invention, when the acquisition of the right to use the fieldbus I / F device fails,
This is to terminate the online adjustment processing of the IO device.

The on-line adjustment method according to the present invention comprises:
When the online adjustment of the O device is completed, the right to use the fieldbus I / F device is released.

According to the online adjustment method of the present invention, when another tool has already acquired the right to use the fieldbus I / F device, the right to use acquired by the other tool is forcibly released. It was made.

In the online adjustment method according to the present invention, when another tool has already acquired the right to use the fieldbus I / F device, the right to use is forcibly taken from the other tool. is there.

In the online adjustment method according to the present invention, when the online adjustment screen is displayed, the fieldbus I / O
The right to use the F device is obtained.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is a configuration diagram showing an online adjustment device according to Embodiment 1 of the present invention.
1 is a personal computer, 12 is a maintenance tool connected to the serial port of the controller 13 and accessing the two-port memory of the field bus I / F device 15 mapped on the main memory of the CPU device 14. A use right acquisition means for acquiring the use right of the field bus I / F device 15 and, if the use right is successfully acquired, the adjustment value of the IO device 17
And an execution unit for transmitting to the / F device 15 to perform online adjustment of the IO device 17.

Reference numeral 13 denotes a controller, 14 denotes a CPU device of the controller 13, 15 denotes a field bus I / F device having a two-port memory, and 16 denotes a maintenance tool.
Is an exclusive control means used when executing online adjustment, and 17 is an IO device connected to the field bus. FIG. 2 is a processing sequence diagram showing the online adjustment method according to the first embodiment of the present invention.

Next, the operation will be described. When the maintenance tool 12 adjusts the IO device 17 online,
First, the user activates an arbitrary maintenance tool 12 and displays an online adjustment screen (step ST2).
1). As a result, the maintenance tool 12 shifts to a state of waiting for input of an adjustment value.

When the user inputs the adjustment value (step ST22), the maintenance tool 12 uses the exclusive control means 16 arranged on the two-port memory of the field bus I / F device 15 to execute the field bus I / F operation. /
Attempt to acquire the right to use the F device 15 (step ST2)
3, ST24).

More specifically, the fieldbus I / F device 1
If you want to obtain the right to use 5 other maintenance tools 1
2 cannot acquire the right to use the fieldbus I / F device 15 if the right to use the fieldbus I / F device 15 has already been obtained. By reading the use bit of, it is determined whether or not another maintenance tool 12 has already acquired the right to use the fieldbus I / F device 15 (see FIG. 3).

If the used bit is “unused”, the used bit is set to “in use”, and the tool No. The right to use the fieldbus I / F device 15 is obtained by writing the own tool number in the field. However, it is assumed that the own tool number is uniquely determined in advance for each tool, and the tool No. = 0 is the field bus I / F
It is defined that the device 15 is unused. On the other hand, if the use bit is “in use”, the other maintenance tool 12 has already used the fieldbus I / F device 15, terminates its online adjustment processing, displays an error message, and Close the online adjustment screen.

When the maintenance tool 12 successfully obtains the right to use the fieldbus I / F device 15, the maintenance tool 12 applies the adjustment value input by the user to the fieldbus I / F device 1.
5 and the IO device 17
Issue a request for transmission of an adjustment value for (step ST2)
5). Upon receiving the request for transmission of the adjustment value from the maintenance tool 12, the fieldbus I / F device 15 transmits the adjustment value written in the two-port memory to the IO device 17 (step ST26).

When the IO device 17 receives the adjustment value from the fieldbus I / F device 15, it executes an online adjustment process according to the adjustment value (step ST27), and sends the execution result to the fieldbus I / F device 15. A reply is sent (step ST28). Fieldbus I / F device 15
Receives the execution result from the IO device 17 and returns the execution result to the maintenance tool 12 (step ST
29).

When receiving the execution result from the fieldbus I / F device 15, the maintenance tool 12 displays information indicating that the online adjustment has been completed on the online adjustment screen (step ST31). Note that the maintenance tool 12 issues a request for transmission of an adjustment value, and then receives an execution result from the fieldbus I / F device 15.
It shifts to a response waiting state (step ST30).

The maintenance tool 12 uses the exclusive control means 16 to control the field bus I / F device 1.
The right to use is released (step ST32). Specifically, the use bit in the exclusive control means 16 is set to “unused”.
And the tool No. in the exclusive control means 16. The right to use the fieldbus I / F device 15 is released by writing "0" in the field.

Depending on the IO device 17, online adjustment needs to be performed for a plurality of points. In this case, the process returns to step ST22, and when the online adjustment is completed, the online adjustment screen is closed (step ST33, step ST33).
ST34).

As is clear from the above, the first embodiment
According to this, when the right to use the fieldbus I / F device 15 is successfully acquired, the adjustment value of the IO device 17 is transmitted to the fieldbus I / F device 15 so that the online adjustment of the IO device 17 is executed. With the configuration, even when the plurality of maintenance tools 12 are connected to the fieldbus I / F device 15, an effect that the consistency of the online adjustment processing between the plurality of maintenance tools 12 and the IO device 17 can be maintained can be achieved. .

Embodiment 2 FIG. 4 is a processing sequence diagram showing an online adjustment method according to Embodiment 2 of the present invention. In the first embodiment, the case where the other maintenance tool 12 terminates its own online adjustment processing when the other maintenance tool 12 uses the fieldbus I / F device 15 has been described. When the right to use the I / F device 15 has been obtained,
The use right acquired by another maintenance tool 12 may be forcibly released.

Specifically, a plurality of maintenance tools 1
2, any maintenance tool (hereinafter referred to as tool B)
When a maintenance tool (hereinafter, referred to as a tool A) receives a forcible release request from the user while executing the online adjustment, the tool B is forcibly released from the use right acquired. That is, upon receiving a forced release request from the user, the tool A activates a forced release menu (step ST41).

The tool A confirms whether or not the tool B has acquired the right to use the field bus I / F device 15 by referring to the use bit in the exclusive control means 16 (step ST42). If the tool B has acquired the usage right, the tool No. Is rewritten to its own tool number, the forcible release bit in the exclusive control means 16 is set to "under release" (step ST43), and the tool B waits for the end of the fieldbus I / F communication (step ST44).

On the other hand, the tool B has a field bus I / F
Each time the communication is completed once, the tool number in the exclusive control unit 16 is changed. Is determined to be the own tool number (step ST45). If is not the own tool number but the number of the tool A, the online adjustment process is interrupted, a message that the forcible release has been made is displayed, and the online adjustment screen is closed (step ST46).

The tool A outputs a request for resetting the online adjustment processing to the IO device 17 that had been adjusted online by the tool B (step ST47), and the tool N
o. Is returned to "0", and the use bit of the field bus I / F device 15 is set to "unused". The reset request for the online adjustment processing is transmitted in the same procedure as when transmitting the adjustment value (see steps ST25 to ST31 in FIG. 2).

Thus, when a certain tool has acquired the right to use the fieldbus I / F device 15, another tool can forcibly release the right to use. Even if the access is abnormally terminated with the right acquired and the access to the IO device 17 from another tool is locked, the lock of the access can be released.

Embodiment 3 In the first embodiment, when the other maintenance tool 12 uses the fieldbus I / F device 15, the self-adjustment process is terminated. However, in the same manner as the second embodiment, After forcibly releasing the use right acquired by the other maintenance tool 12, the use right may be acquired in the same manner as in the first embodiment.

Thus, for example, even when a worker leaves a seat while a certain maintenance tool 12 has acquired the right to use, another worker can use another maintenance tool 12 to This has the effect of enabling an emergency online adjustment.

Embodiment 4 In the first embodiment, the case where the use right of the fieldbus I / F device 15 is confirmed when the adjustment value is transmitted has been described. It may be determined whether or not the right to use the I / F device 15 has already been acquired, and if the right to use has already been acquired, the processing may be terminated. As a result, since exclusive control can be performed for each online adjustment screen, there is an effect that unnecessary operations can be omitted.

[0043]

As described above, according to the present invention, when the usage right acquisition means succeeds in obtaining the usage right, the adjustment value of the IO device is transmitted to the field bus I / F device, and the IO device is brought online. Since the execution means for performing the adjustment is provided, even when a plurality of maintenance tools are connected to the fieldbus I / F device, the consistency of the online adjustment process between the plurality of maintenance tools and the IO device is maintained. There is an effect that can be.

According to the present invention, if the use right obtaining means fails to obtain the use right, the execution means for terminating the online adjustment processing of the IO device is provided, so that a plurality of maintenance tools and the IO device can be connected. There is an effect that the consistency of the online adjustment processing can be maintained.

According to the present invention, since the execution means completes the online adjustment of the IO device, the use right acquisition means for releasing the use right of the field bus I / F device is provided. This has the effect of avoiding the problem that access from the maintenance tool is locked.

According to the present invention, when another tool has already acquired the right to use the fieldbus I / F device, the right-of-use acquisition means for forcibly releasing the right of use acquired by the other tool. Therefore, for example, even if a certain maintenance tool abnormally terminates while obtaining the right to use and the access to the IO device from another maintenance tool is locked, the access lock is released. There is an effect that can be.

According to the present invention, when another tool has already acquired the right to use the fieldbus I / F device, a right-of-use acquiring means for forcibly acquiring the right to use from the other tool is provided. With this configuration, for example, even if a worker leaves the seat while a maintenance tool has acquired the right to use, another worker can use another maintenance tool to make an emergency online adjustment. There is an effect that can be performed.

According to the present invention, when the online adjustment screen is displayed, use right obtaining means for obtaining the right to use the fieldbus I / F device is provided, so that exclusive control is performed for each online adjustment screen. As a result, unnecessary operations can be omitted.

According to the present invention, the field bus I / F
When the right to use the device is successfully acquired, the adjustment value of the IO device is transmitted to the fieldbus I / F device to perform the online adjustment of the IO device. Even when connected to the F device, there is an effect that the consistency of the online adjustment processing between the plurality of maintenance tools and the IO device can be maintained.

According to the present invention, the field bus I / F
If the acquisition of the right to use the device fails, the online adjustment process of the IO device is terminated, so that there is an effect that the consistency of the online adjustment process between a plurality of maintenance tools and the IO device can be maintained.

According to the present invention, when the online adjustment of the IO device is completed, the right to use the fieldbus I / F device is released, so that access to the IO device from another maintenance tool is locked. There is an effect that a defect can be avoided.

According to the present invention, when another tool has already acquired the right to use the fieldbus I / F device, the use right acquired by the other tool is forcibly released. Therefore, for example, even if a certain maintenance tool abnormally terminates while obtaining the right to use, and the access to the IO device from another maintenance tool is locked, it is possible to unlock the access. .

According to the present invention, when another tool has already acquired the right to use the fieldbus I / F device, the right to use is forcibly obtained from the other tool. Even if a worker leaves the seat while a certain maintenance tool has acquired the right to use, another worker can use another maintenance tool to make an emergency online adjustment There is.

According to the present invention, when the online adjustment screen is displayed, the right to use the fieldbus I / F device is acquired, so that exclusive control can be performed for each online adjustment screen. There is an effect that unnecessary operations can be omitted.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating an online adjustment device according to a first embodiment of the present invention.

FIG. 2 is a processing sequence diagram showing an online adjustment method according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram illustrating a configuration example of an exclusive control unit.

FIG. 4 is a processing sequence diagram illustrating an online adjustment method according to a second embodiment of the present invention.

FIG. 5 is a configuration diagram showing a conventional online adjustment device.

FIG. 6 is a processing sequence diagram showing a conventional online adjustment method.

[Explanation of symbols]

11 PC, 12 maintenance tool (usage acquisition means, execution means), 13 controller, 14 CP
U device, 15 fieldbus I / F device, 16 exclusive control means, 17 IO device.

Claims (12)

[Claims] 1. A use right acquisition means for acquiring a use right of a fieldbus I / F device upon receiving an online adjustment request for an IO device connected to the fieldbus,
An execution unit for transmitting an adjustment value of the IO device to the fieldbus I / F device and executing an online adjustment of the IO device when the usage right acquisition unit succeeds in obtaining the usage right. apparatus. 2. The online adjustment device according to claim 1, wherein the execution unit terminates the online adjustment processing of the IO device when the usage right acquisition unit fails to obtain the usage right. 3. The use right acquisition means, when the execution means completes the online adjustment of the IO device, a field bus I / F.
2. The online adjustment device according to claim 1, wherein the right to use the device is released. 4. The right-of-use obtaining means, when another tool has already obtained the right to use the fieldbus I / F device,
The online adjustment apparatus according to any one of claims 1 to 3, wherein the use right acquired by another tool is forcibly released. 5. The right-of-use acquiring means, when another tool has already acquired the right to use the fieldbus I / F device,
The online adjustment device according to any one of claims 1 to 3, wherein the right to use is forcibly obtained from another tool. 6. The use right acquiring means according to claim 1, wherein when the online adjustment screen is displayed, the use right acquisition means acquires the use right of the fieldbus I / F device. Online adjustment device according to the paragraph. 7. Upon receiving an online adjustment request for an IO device connected to the field bus, the device attempts to acquire a right to use the field bus I / F device. An online adjustment method for transmitting an adjustment value to the fieldbus I / F device and performing an online adjustment of the IO device. 8. The online adjustment method according to claim 7, wherein when the acquisition of the right to use the fieldbus I / F device fails, the online adjustment process of the IO device is terminated. 9. The online adjustment method according to claim 7, wherein when the online adjustment of the IO device is completed, the right to use the fieldbus I / F device is released. 10. Other tools are already available on the fieldbus I / O
The online use according to any one of claims 7 to 9, wherein when the right to use the F device is acquired, the right to use acquired by another tool is forcibly released. Adjustment method. 11. Other tools are already available on the fieldbus I / O
The online adjustment method according to any one of claims 7 to 9, wherein when the right to use the F device is acquired, the right to use is forcibly obtained from another tool. 12. When an online adjustment screen is displayed,
The online adjustment method according to any one of claims 7 to 11, wherein a right to use the fieldbus I / F device is acquired.