JPH10105438A - Supervisory and controlling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To considerably reduce the processing loads of a supervisory and controlling part by providing a factor storage part for storing a factor corresponding to the stored data of a data storage part and a factor judgement part for referring to the stored contents of a change point data storage part, judging the factor of data change by the factor storage part and transferring it to the supervisory and controlling part. SOLUTION: This device is provided with the factor storage part 6 for storing the factor corresponding to the data stored in a first data storage part 5 and the factor judgement part 7 for referring to the stored contents of the change point data storage part 4 and judging the change factor of the data of the first data storage part 5. The factor judgement part 7 judges the factor of the data with change and informs the supervisory and controlling part 1. The contents of the factor storage part 6 can be in one-to-one correspondence with the contents of the first data storage part 5, the factor judgement part 7 refers to the stored contents of the change point data storage part 4 and the address of the first data storage part where the data are changed is recognized. The address is converted, the factor storage part 7 is referred to and the factor is judged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supervisory control device, and more particularly, to a supervisory control device capable of reducing a processing load on a supervisory control unit, which is a so-called CPU, which performs a supervisory control function.

[0002] With the development of the information society in recent years, signals transmitted by a communication network have been diversified into telephone voice, data, facsimile, still image, moving image, and the like. It's getting complicated. Accordingly, the configuration of the transmission device that forms the communication network is complicated in response to the diversification of signals and the complexity of the communication network, while the packages that form the transmission device are diversified and diversified. .

[0003] Signals transmitted by communication networks have been increasing in capacity, including speeding up, and the proportion of data occupied therein has increased rapidly. Therefore, keeping the reliability of the communication network high is more important than ever.

[0004] On the other hand, the transmission device is constituted by a large-scale integrated circuit except for some parts such as an operation unit and a display unit, and it is possible to provide a large number of monitoring points in the transmission device. This makes it easy to perform detailed monitoring to ensure reliability.

[0005] Against this background, there is a need for a monitoring and control device for monitoring and controlling a communication network, especially a transmission device, to increase the number of monitoring and control points, to diversify monitoring and control contents, and to speed up processing. .

[0006] In addition to public communication networks, so-called social systems such as electric power systems and transportation systems have been enhanced. Such a social system is a social infrastructure, and of course must be a system with high reliability. Accordingly, there is a strong demand for a monitoring control device that monitors and controls a social system.

As described above, when the number of monitoring and control points is increased, and the contents of monitoring and control are diversified, the processing load of the monitoring control unit that performs the monitoring control function naturally increases, and the processing speed of the monitoring control unit is increased. Will be reduced.

Accordingly, the processing load on the monitoring and control unit is not increased by the monitoring and control unit that performs the monitoring and control function.
It is required that a complex system can be monitored and controlled in detail.

[0009]

2. Description of the Related Art As described above, the field of application of a supervisory control device is wide, but the supervisory control technology itself is essentially the same. I will explain.

In the conventional supervisory control device, the supervisory control device receives a response from the subordinate package to a command issued to the subordinate package (which constitutes a transmission device) to be monitored and controlled. The processing has been performed for all the received responses.

The response includes data indicating the status of the subordinate package, an alarm generated by the subordinate package, and the like. However, since the transmission device normally operates normally,
There is often no change between the previously received response and the newly received response.

Nevertheless, since the monitoring and control device has been performing processing on all of the received responses, the processing load of the monitoring and control unit steadily increases with the complexity of the transmission device, and the processing speed decreases. Was invited.

[0013] Therefore, an improvement has been made so that processing is performed only on the received response that has a change from the previously received response. FIG. 8 shows a configuration of a conventional monitoring and control device in which the above-described improvement has been made, including a subordinate package.

In FIG. 8, reference numeral 1a denotes a supervisory control unit for supervising a supervisory control function, 2a a communication unit for communicating between the supervisory control device and a subordinate package, and 3 a command which the supervisory control device sends to the subordinate package. A command storage unit (shown as a CMD storage unit in the figure), 4a is a change point data storage unit that stores change point data generated by comparing the previous data with the newly received data by the communication unit, 5a Is a data storage unit for storing received data, which constitutes a conventional monitoring and control device. Reference numeral 14 denotes a subordinate package.

FIG. 9 is a diagram showing a flow until the change point data is stored in the change point data storage unit. In FIG.
2a is a communication unit, 3 is a command storage unit, 4a is a change point data storage unit, 5a is a data storage unit, and 14 is a subordinate package, all of which are the same as those shown in FIG. Also, 21
Is a response data storage unit, and 22 is a buffer storage unit, which is a part of the communication unit. The other parts of the communication unit are not shown.

FIG. 9 shows numbers surrounded by circles. Hereinafter, the flow until the change point data is stored in the change point data storage unit will be described along the numbers surrounded by circles in FIG. The communication unit fetches the command stored in the command storage unit and sends it to the subordinate package according to the instruction of the monitoring control unit (not shown).

The subordinate package receives a response to the command and stores it in the response data storage unit. The data stored in the response data storage unit is compared with the data corresponding to the same command stored in the data storage unit, and if there is a change in the comparison result data, the address and the data are stored in the buffer unit. .

After that, the response data is stored in the data storage. After the data collection is completed, the communication unit stores the change point data in the change point data storage unit as a change point data, a flag indicating the change, an address indicating the change, and a flag indicating the change data at the address. Is stored.

FIG. 10 is a diagram showing the correspondence between the contents of the data storage unit and the contents of the change point data storage unit. Fig. 10 (a)
Shows the contents of the data storage unit, in the case where each address is composed of eight data areas, assuming that there is a change in hatched data among the data of address 3.

In these data areas, data (status) indicating the status of the subordinate package, an alarm issued by the subordinate package, the ID number of the subordinate package responding to the data, and the normal communication between the communication unit and the subordinate package /
Data indicating an abnormality is stored, and one factor is represented by data stored at one address.

FIG. 10B shows the contents of the change point data storage section, which indicates a flag indicating data in which the 0th to 7th bits have changed, an address in which the 8th to 15th bits have changed, The most significant bit is a flag indicating the presence or absence of a change.

In this case, since the address 3 has changed, "1" is set in the flag indicating the change, the address 3 is stored in the address, and the changed data is data 3, data 5, data 5 Since the flag is 6, the flag indicating the changed data has "1" in 2, 3, and 5 bits.

As described above, since the flag indicating that a change has occurred in the data, the address at which the change has occurred, and the data at which the address has changed are stored in the change point data storage unit, The monitoring control unit accesses the change point data storage unit, reads the changed address and the data at that address, and performs necessary processing with reference to the data storage unit.

Next, when the communication section recognizes that the monitoring control section has accessed the change point data storage section, the communication section stores the next change point data in the change point data storage section. Then, after all the change point data is stored in the change point data storage, “0” indicating that there is no change point is stored in the most significant bit of the change point data storage. The monitoring control unit looks at the most significant bit of the change point data storage unit and accesses the change point data storage unit to perform necessary processing only when “1” is stored.

FIG. 11 is a flowchart showing the entire processing using the change point data storage section, and includes all the above operations. Hereinafter, the entire processing using the change point data storage unit will be described along the reference numerals assigned to the respective steps in FIG.

S1. The communication unit transmits the set of commands to the subordinate package. S2. The communication unit receives response data from the subordinate package. S3. According to the procedure already described, the communication unit stores the change point data in the change point data storage unit.

S4. Test the change flag of the change point data. If the change flag is "0" and there is no change in the response data, the process returns to step S1. This completes one polling.

On the other hand, if the change flag is "1" and there is a change, the process proceeds to the next step. S5. The monitoring control unit reads from the change point data storage unit. Thereafter, the communication unit rewrites the contents of the change point data storage unit.

S14. The monitoring controller performs necessary processing, and returns to step S4. Therefore, by using the change point data storage unit to perform necessary processing, the monitoring control unit needs to perform processing when the change flag of the change point data storage unit is not set to “1”. , The processing load is reduced.

[0030]

As described above, when the change point data storage unit is used, the processing load on the monitoring control unit is reduced. However, the processing load is reduced only by the reduction in access to the response data. However, the following problems remain, for example, the monitoring control unit must perform various processes.

That is, the first problem is that after accessing the change point data storage unit, it is necessary to determine the cause of the data change. The second problem is recording data (so-called logging). In that case,
When recording the contents of the data storage unit, there is a problem that a large-scale recording area is required.

The third problem is that, in some cases, it is necessary to hold the previous response data, but since there is no configuration for backup, the supervisory control unit has to perform it. is there.

The fourth problem is that it is necessary to determine whether or not the cause of the changed data has occurred or has disappeared. The fifth problem is that, in some cases, only a limited command needs to be sent, but all commands are sent, so even if the change point data storage unit is used, the processing load is high. It is relatively large.

A sixth problem is that when it is desired to keep the previous data, it is necessary to generate the data based on the data holding the change point data and the received response data. Must do that.

Since the above problem still remains in the configuration of FIG. 8, the processing load on the monitoring control unit cannot be reduced significantly. The present invention has been made in view of the above circumstances, and has as its object to provide a monitoring control device that can significantly reduce the processing load on a monitoring control unit.

[0036]

FIG. 1 shows the configuration of a monitoring and control device according to the present invention, together with a subordinate package.

In FIG. 1, 1 is a monitoring control unit, 2 is a communication unit, 3 is a command storage unit (shown as a CMD storage unit in the figure), 4 is a change point data storage unit, and 5 is a received response. A first data storage unit for storing data. These are the monitoring control unit 1a, the communication unit 2a, the command storage unit 3, the change point data storage unit 4a, and the data storage unit 5 in the configuration of FIG.
corresponds to a. Reference numeral 6 denotes a factor storage unit for storing a factor corresponding to data stored in the first data storage unit. Reference numeral 7 denotes a data of the first data storage unit by referring to the storage contents of the change point data storage unit. Factor determining unit for determining the factor of change
Is a recording control unit that records change point data in a recording area (not shown) according to an instruction from the monitoring control unit. 9 is a backup control unit that copies the contents of the first data storage unit to a second data storage unit described later. Reference numeral 10 denotes a second data storage unit for copying and storing the data of the first data storage unit under the control of the backup control unit. Reference numeral 11 denotes whether the factor of the changed data has occurred or has disappeared. The event determination unit 12 includes a command operation unit (indicated as a CMD operation unit in the figure) for instructing the communication unit to transmit a limited command to a subordinate package in accordance with an instruction from the monitoring control unit. This is a data rewriting control unit that transfers an arbitrary storage content of the second data storage unit to the first data storage unit.

FIG. 1 collectively shows means for solving the problem to be solved by the present invention, and each means will be briefly described below. A first means of the present invention for solving the first problem includes a factor storage unit for storing a factor corresponding to data stored in a first data storage unit, and a storage content of the change point data storage unit. And a factor determining unit that determines a factor of change in the data in the first data storage unit with reference to the data storage unit. This is a technique for notifying the control unit.

According to the first means of the present invention, the monitoring control unit does not need to search the first data storage unit to determine the cause of the changed data, and the processing load is reduced.
A second means of the present invention for solving the second problem is a technique of providing a recording control unit and recording the contents stored in a change point data storage unit in accordance with an instruction from the monitoring control unit.

According to the second means of the present invention, it is not necessary for the monitoring control unit to directly participate in the recording process, so that the processing load is reduced. Further, if the storage contents of the change point data storage unit are recorded without recording the storage contents of the first data storage unit, a change history of the data can be recorded, and the current data is stored in the first data storage unit. It can be understood by referring to the stored contents of the
The recording area can be reduced.

A third means of the present invention for solving the third problem is a backup control unit for copying the contents stored in the first data storage unit to a second data storage diagram, and a second data storage unit. This is a technique in which a storage unit is provided to hold the contents stored in a first data storage unit.

According to the third means of the present invention, it is possible to hold the data collected by the previous polling, so that the monitoring control unit can process the collected data without being conscious of the previous one. Become like

A fourth means of the present invention for solving the fourth problem is to determine whether a factor has occurred or has disappeared from the contents stored in the first data storage unit and the second data storage unit. That is, an event determination unit that performs

According to the fourth means of the present invention, the event judging section judges the occurrence or disappearance of the factor and notifies the monitoring control section, so that the monitoring control section does not need to directly judge the event, and the processing load is reduced. It is reduced.

A fifth means of the present invention for solving the fifth problem is a technique for providing a command operation section so that a limited command can be transmitted. According to the fifth means of the present invention, data is collected and processed according to the limited command issued by the command operation unit in accordance with the instruction of the monitoring control unit. The processing load on the monitoring control unit is reduced.

A sixth means for solving the above-mentioned sixth problem is to provide a data rewriting control section for transferring arbitrary storage contents of the second data storage section to the first data storage section. According to the sixth means of the present invention, any stored contents of the second data storage unit can be transferred to the first data storage unit. When it is desired to generate the data, the monitoring control unit does not need to hold the data for that purpose, and the thought load on the monitoring control unit is reduced.

[0047]

FIG. 2 is a flow chart showing a process using a factor judging section. Hereinafter, processing using the factor determination unit will be described along the reference numerals in FIG.

S1. The communication unit transmits the set of commands to the subordinate package. S2. The communication unit receives response data from the subordinate package. S3. According to the procedure already described, the communication unit stores the change point data in the change point data storage unit.

S4. Test the change flag of the change point data. If the change flag is "0" and there is no change in the response data, the process returns to step S1. This completes one polling.

On the other hand, if the change flag is "1" and there is a change, the process proceeds to the next step. S5. The monitoring control unit reads from the change point data storage unit. Thereafter, the communication unit rewrites the contents of the change point data storage unit.

S6. A factor determination unit determines a data change factor. S7. The factor determination unit transfers the determination result to the monitoring control unit. S8. The monitoring control unit performs processing using the transferred factors.

Accordingly, there is no need for the monitoring control unit to perform factor determination, and the processing load on the monitoring control unit is reduced. Here, the fact that the factor can be determined based on the contents of the first data storage unit and the contents of the factor storage unit will be briefly described.

FIG. 3 is a diagram showing the correspondence between the contents of the first data storage unit and the contents of the factor storage unit. FIG. 3A shows the contents of the first data storage unit. Although this is slightly omitted in FIG. 3, this is the same as that shown in FIG. 10A, and it is assumed that eight data are stored in one address. Start address is 0
000h, 0008h, 0010h,... Here, h is a symbol indicating hexadecimal expression.

FIG. 3B shows the contents of the factor storage unit.
Each address has a cause code and a package type (PKG type in the figure) related to the cause.
Is stored.

Now, the address 0 of the factor storage unit corresponds to the area where the first address of the first data storage unit is 0000h, and the address 1 of the factor storage unit and the first address of the first data storage unit are 0008h. Assuming that the areas correspond to the address 2 of the factor storage unit and the area where the first address of the first data storage unit is 0010h, and thereafter correspond in the same order, the address of the factor storage memory is as shown in FIG. As shown in (c), it can be obtained by dividing the number obtained by converting the head address of each area of the first data storage unit into a decimal number by 8. It is clear that the reverse address translation is also possible.

As described above, the contents of the factor storage unit can correspond to the contents of the first data storage unit in a one-to-one correspondence. Therefore, if the factor determination unit refers to the storage contents of the change point data storage unit, Since the address of the first data storage unit where the data has changed can be known, the cause can be determined by converting the address and referring to the factor storage unit.

FIG. 4 is a flowchart showing a process using the recording control unit. Hereinafter, the recording process will be described along the reference numerals in FIG. S1. The communication unit transmits the set of commands to the subordinate package.

S2. The communication unit receives response data from the subordinate package. S3. According to the procedure already described, the communication unit stores the change point data in the change point data storage unit.

S4. Test the change flag of the change point data. If the change flag is "0" and there is no change in the response data, the process returns to step S1. This completes one polling.

On the other hand, if the change flag is "1" and there is a change, the process proceeds to the next step. S9. The recording control unit records the contents of the change point data storage unit according to the instruction of the monitoring control unit.

Accordingly, the processing load on the monitoring control unit is reduced because the monitoring control unit does not need to be directly involved in the recording control. In FIG. 4, "to other processing" is described, but the monitoring control unit can access the change point data and perform necessary processing in parallel with the recording processing.

Further, by recording the contents stored in the change point data storage section, only the circumstances in which the change has occurred are recorded.
Since there is no need to record response data, there is an advantage that the area for recording may be small.

It is not difficult to understand that the contents stored in the first data storage unit are copied to the second data storage unit, and the description using the drawings is omitted. Since both the data and the data collected by the previous polling can be stored, there is an advantage that the monitoring control unit can process the collected data without being aware of the data collected immediately before.

FIG. 5 is a flowchart showing a process using the event determination unit. Hereinafter, the processing using the event determination unit will be described along the reference numerals in FIG. S1. The communication unit transmits the set of commands to the subordinate package.

S2. The communication unit receives response data from the subordinate package. S3. According to the procedure already described, the communication unit stores the change point data in the change point data storage unit.

S4. Test the change flag of the change point data. If the change flag is "0" and there is no change in the response data, the process returns to step S1. This completes one polling.

On the other hand, if the change flag is "1" and there is a change, the process proceeds to the next step. S5. The monitoring control unit reads from the change point data storage unit. Thereafter, the communication unit rewrites the contents of the change point data storage unit.

S6. The factor determining unit determines the factor. S7. The factor determination unit transfers the determination result to the monitoring control unit. S10. The event determining unit determines the occurrence and disappearance of the factor to determine the event.

S11. The event determination unit transfers the determination result to the monitoring control unit. S8. The monitoring control unit performs the processing. The event judging unit judges an event by, for example, setting "1" to an appropriate bit in data when an alarm is issued, and setting the bit to "0" when the alarm disappears. If this is the case, the event determining unit can determine whether an alarm has occurred or has disappeared by referring to the event.

When monitoring and controlling are performed, for example, there is a case where some of the subordinate packages are not mounted or some of the transmission devices are under maintenance, so that it is not necessary to perform processing according to the monitoring result. In such a case, it is meaningless to transmit all the commands stored in the command storage unit and collect the response data, and in some cases, it may be more inconvenient to perform the control. In such a case, it is necessary to transmit only necessary commands.

The command operation section is provided for this purpose. That is, by designating the storage location of the command storage unit by the command operation unit, response data is collected only for the factors to be targeted at that time. The communication unit selects and transmits a command stored in the command storage unit according to the instruction of the command operation unit.

FIG. 6 is a flowchart showing a process using the command operation unit. Hereinafter, processing using the command operation unit will be described according to the reference numerals in FIG. S12. The command to be sent by the command operation unit is specified.

S1. The communication unit transmits the specified command to the subordinate package. S2. The communication unit receives response data for the specified command from the subordinate package.

S3. According to the procedure already described, the communication unit stores the change point data in the change point data storage unit. S4. Test the change flag of the change point data. If the change flag is “0” and there is no change in the response data, step S
Return to 1. This completes one polling.

On the other hand, if the change flag is "1" and there is a change, the process proceeds to the next step. S5. The monitoring control unit reads from the change point data storage unit. Thereafter, the communication unit rewrites the contents of the change point data storage unit.

S6. The factor determining unit determines the factor. S7. The factor determination unit transfers the determination result to the monitoring control unit. S8. The monitoring controller performs the processing, and returns to step S4.

As a result, only the response data to the necessary command is collected, and the processing is performed using the change in the collected response data, so that the processing load on the monitoring and control device is reduced.

During monitoring, an alarm may not be displayed immediately after an alarm is detected, but may be displayed only after an alarm has been detected a predetermined number of times in succession. That is, the protection operation. In such a case, simply copying the data in the first data storage unit to the second data storage unit cannot count the number of protection steps. This is because if the alarm continues, the alarm information collected at each polling is represented by the same data, so that even if the first data storage unit is compared with the response data storage unit of the communication unit, the change point data is obtained. It is not possible.

Therefore, in the present invention, a data rewrite control unit is provided to transfer arbitrary contents stored in the second data storage unit to the first data storage unit. By doing so, the data stored in the first data storage unit becomes as described below, and the protection operation becomes possible.

Assume that no alarm has been issued before the polling timing 0. Therefore, "0" is stored in the corresponding positions of the first and second data storage units. Next, if an alarm is issued at polling timing 1, "1" is set at a corresponding position in the response data storage unit of the communication unit. Therefore, change point data is generated. Then, the above “1” in the response data storage is stored in the first data storage. At this time, “0” is stored in the corresponding position of the second data storage unit.

The above "0" of the second data storage is transferred to the first data storage and the next polling response is awaited. If the alarm continues, "1" is set again in the response data storage unit, so that change point data is generated. Thereafter, the above "1" in the response data storage is stored in the first data storage. At this time, “0” is stored in the corresponding position of the second data storage unit.

The above-mentioned "0" in the second data storage is transferred to the first data storage, and the next polling response is awaited. By repeating this operation, the generation of the change point data can be continued while the factors to be protected continue to be in the same state, so that the factors can be protected.

Although not described in detail, if the above-mentioned operation is not performed, it is impossible that the protection is impossible because the change point data cannot be generated after polling timing 2 for the factors to be protected. Easy to understand.

Therefore, the data rewrite control section can realize an effective operation. FIG. 7 is a flowchart illustrating a process using the data rewriting control unit. Hereinafter, processing using the data rewriting control unit will be described along the reference numerals in FIG.

S1. The communication unit transmits the set of commands to the subordinate package. S2. The communication unit receives response data from the subordinate package. S3. According to the procedure already described, the communication unit stores the change point data in the change point data storage unit.

S4. Test the change flag of the change point data. If the change flag is "0" and there is no change in the response data, the process returns to step S1. This completes one polling.

On the other hand, if the change flag is "1" and there is a change, the process proceeds to the next step. S5. The monitoring control unit reads from the change point data storage unit. Thereafter, the communication unit rewrites the contents of the change point data storage unit.

S6. The factor determining unit determines the factor. S7. The factor determination unit transfers the determination result to the monitoring control unit. S8. The monitoring control unit performs the processing.

S13. The data rewriting control unit rewrites the content stored in the second data storage unit according to the instruction from the monitoring control unit, and returns to step S4.

[0090]

As described in detail above, the first means of the present invention eliminates the need for the monitoring control unit to determine the cause, and the second means of the present invention eliminates the need for the monitoring control unit to perform recording control. Can also record the history of the change point data, and the third means of the present invention can copy the contents stored in the first data storage unit to the second data storage unit without involving the monitoring control unit. Yes, the fourth means of the present invention eliminates the need for the monitoring control unit to make an event determination, and the fifth means of the present invention enables collection and processing of response data for only necessary commands,
By the sixth means of the present invention, any contents of the second data storage unit can be transferred to the first data storage unit without involvement of the monitoring control unit, for example, protection can be achieved. As a result, the processing load on the monitoring control unit can be significantly reduced, and the monitoring control can be performed quickly while responding to the complexity of the monitoring control target.

Further, according to the second means of the present invention, the area for recording the monitoring history can be reduced. Therefore, the present invention makes a great contribution to the improvement of a widely applied monitoring and control device.

[Brief description of the drawings]

FIG. 1 is a configuration of a supervisory control device of the present invention.

FIG. 2 shows processing using a factor determination unit.

FIG. 3 shows correspondence between contents of a first data storage unit and contents of a factor storage unit.

FIG. 4 shows processing using a recording control unit.

FIG. 5 shows processing using an event determination unit.

FIG. 6 shows processing using a command operation unit.

FIG. 7 shows processing using a data rewriting control unit.

FIG. 8 is a configuration of a conventional monitoring control device.

FIG. 9 shows a flow of storing change point data in a change point data storage unit.

FIG. 10 shows the correspondence between the contents of the data storage unit and the contents of the change point data storage unit.

FIG. 11 shows processing using a change point data storage unit.

[Explanation of symbols]

 1, 1a monitoring control unit 2, 2a communication unit 3 command storage unit (CMD storage unit) 4, 4a change point data storage unit 5 first data storage unit 5a data storage unit 6 factor storage unit 7 factor determination unit 8 recording control Unit 9 backup control unit 10 second data storage unit 11 event determination unit 12 command operation unit (CMD operation unit) 13 data rewrite control unit 14 subordinate package (subordinate PKG) 21 response data storage unit 22 buffer storage unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Toshimitsu Handa 3-1-1 Hirookacho, Kanazawa-shi, Ishikawa Prefecture Inside Fujitsu Hokuriku Communication System Co., Ltd. (72) Naomi Yokoyama 3-1-1 Hirookacho, Kanazawa-shi, Ishikawa Prefecture No. 1 Fujitsu Hokuriku Communication System Co., Ltd. (72) Inventor Takeshi Oki 3-1-1 Hirookacho, Kanazawa City, Ishikawa Prefecture Inside Fujitsu Hokuriku Communication System Co., Ltd. (72) Inventor Yasuaki Mori Hirooka, Kanazawa City, Ishikawa Prefecture 3-1-1, Machi-cho Fujitsu Hokuriku Communication System Co., Ltd.

Claims (6)

[Claims] 1. A monitoring control unit that performs a monitoring control function, transmits a command stored in a command storage unit to a subordinate package, collects response data from the subordinate package, and stores the response data in a first A communication unit that generates change point data by comparing the data stored in the data storage unit, a change point storage unit that stores the change point data, and a first data storage unit that stores past collected data A factor storage unit for storing a factor corresponding to data stored in the first data storage unit, and a data stored in the change point data storage unit. And a factor determining unit that determines a factor of the change and transfers the factor to the monitoring control unit. 2. A monitoring control unit which performs a monitoring control function, transmits a command stored in a command storage unit to a subordinate package, collects response data from the subordinate package, and stores the response data in a first A communication unit that generates change point data by comparing the data stored in the data storage unit, a change point storage unit that stores the change point data, and a first data storage unit that stores past collected data A monitoring control device comprising: a recording control unit that records the storage content of the change point data storage unit in accordance with an instruction from the monitoring control unit. 3. A monitoring control unit that performs a monitoring control function, transmits a command stored in a command storage unit to a subordinate package, collects response data from the subordinate package, and stores the response data in a first A communication unit that generates change point data by comparing the data stored in the data storage unit, a change point storage unit that stores the change point data, and a first data storage unit that stores past collected data A monitoring and control device comprising: a second data storage unit having the same configuration as the first data storage unit; and backup control for copying the storage content of the first data storage unit to the second data storage unit. And a control unit. 4. The monitoring control device according to claim 3, wherein an event is determined from the content stored in the first data storage and the content stored in the second data storage, and the event is determined by the monitoring control. A monitoring and control device comprising an event determining unit for transferring. 5. A monitoring control unit that performs a monitoring control function, transmits a command stored in a command storage unit to a subordinate package, collects response data from the subordinate package, and stores the response data in a first A communication unit that generates change point data by comparing the data stored in the data storage unit, a change point storage unit that stores the change point data, and a first data storage unit that stores past collected data A command operation unit for designating a command to be transmitted to a subordinate package by a communication unit in accordance with an instruction of the monitoring control unit. 6. A monitoring control unit that performs a monitoring control function, transmits a command stored in a command storage unit to a subordinate package, collects response data from the subordinate package, and stores the response data in a first A communication unit that generates change point data by comparing the data stored in the data storage unit, a change point storage unit that stores the change point data, and a first data storage unit that stores past collected data In the monitoring control device, data rewriting for transferring data stored at an arbitrary position in the second data storage unit to a corresponding position in the first data storage unit in accordance with an instruction of the monitoring control unit. A monitoring control device comprising a control unit.