JP3029345B2 - Monitoring and control system - 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 and control system used for, for example, process instrumentation and various other control systems, and more particularly to issuing only an alarm for each required station and controlling the entire system. The present invention relates to a supervisory control system provided with a technique for assigning weights to alarms while taking into account.

[0002]

2. Description of the Related Art Conventionally, a monitoring and control system for processes and the like includes a plurality of process control stations for execution control on the same LAN and an operator interface station for monitoring operation for monitoring and controlling these process control stations for execution control. Each of the process control stations for execution control detects one or more process states for each process unit, determines whether there is an abnormality in the process state, and performs necessary operations according to the process state. On the other hand, the monitoring operation process control station is configured to monitor an alarm generated in the execution control process control station.

In this case, there is no problem in monitoring the alarm of each operator interface station for monitoring operation even if all the process control stations for execution control are to be monitored. However, in recent years, the reliability and performance of the monitoring control system have been improved. From the viewpoint, the scope of monitoring and control can now be applied to multiple processes, the integration of instrument rooms that were dispersed in the factory, improvement of the work environment for operators, rationalization, and centralized management of processes, etc. Therefore, an integrated monitoring and control system has been constructed in which conventional operator interface stations for monitoring operation are integrated into one.

In such an integrated monitoring and control system, a plurality of operator interface stations for monitoring and operation and many CRT devices are provided in an instrument room, and an operator is divided into a plurality of groups according to a process in charge, and a process unit is provided. Monitor and control the process by limiting the CRT device.

[0005] Among the alarms issued by each execution control process control station, the alarms of the cards and peripheral devices in each execution control process control station are determined in advance by the alarm items and the importance of the abnormalities (hereinafter, referred to as "importance").
Weight).

[0006]

However, in the above-described monitoring and control system, since all the process control stations for execution control are to be monitored for alarms, the monitoring and control system uses a card for the process control stations for execution control other than the target process. When an abnormality occurs, a card alarm of the process control station is also issued to the CRT device for monitoring the target process, which places a burden on the operator and has a problem that the process monitoring is adversely affected.

In this manner, in the method of issuing an alarm issued by a certain process control station for execution control to all the operator interface stations for monitoring operation, it is possible to select and issue only necessary alarms. There is a problem that cannot be done.

[0010] Further, for the alarms of the cards and peripheral devices in each process control station for execution control, the alarm items and the weights of the alarms are predetermined, but these are considerably different depending on the system. There is a problem. For example, when an error occurs in a peripheral printer, it is normal to give a heavy alarm for an abnormality in the printer itself and a light alarm for paper out, etc., but the report function of a public system that requires reporting to public institutions In the case of a printer error in, even if the paper is out of paper, a heavy alarm is issued, and the operator is requested to take measures to continue the report.

On the other hand, in a system in the chemical process field or the like, it is desirable to treat a failure in the printer main body having a low influence on the process as a light failure and treat a higher failure as a serious failure.

The present invention has been made in view of the above circumstances. Even in a large-scale system for monitoring and controlling a plurality of processes, only a necessary station alarm is issued and an alarm is generated in accordance with the system. It is an object of the present invention to provide a supervisory control system for assigning weights.

[0011]

[0012]

Means for Solving the Problems] corresponding to claim 1 invention, the monitoring control system in which a plurality of monitoring operation station is provided for monitoring and controlling a plurality of control stations, each monitoring operation station In advance, among the control stations and the monitoring operation stations, alarm item data, at least for each card type and each peripheral device type in each control station.
A monitoring information table storing monitoring availability data indicating whether or not alarm monitoring can be performed and weighting data indicating the importance of the alarm item, and an alarm generated by a certain card or peripheral device based on the alarm. The type of the card or the peripheral device and the alarm item are specified, and it is determined whether or not the alarm monitoring can be performed based on the monitoring availability data. If the alarm monitoring is enabled, the monitoring is performed based on the weighting data. Alarm creating means for creating a weighted alert, alarm issuing means for issuing the weighted alert created by the alert creating means, and whether or not monitoring in the monitoring information table is possible based on externally input data This is a monitoring control system provided with monitoring information registering means for registering and updating data and weighted data.

[0013]

[0014]

Accordingly, the invention corresponding to claims 1 and 2 is characterized in that at least when a card or a peripheral device in each control station among the control stations and each monitoring operation station generates an alarm, the alarm is generated. Based on the alarm, the alarm creating means specifies the type of the card or the peripheral device that issued the alarm and the alarm item, and calls the monitoring information table to weigh the data if the alarm monitoring of the card or the peripheral device is possible. A weighted alarm is created using the data, and the alarm issuance means issues the weighted alarm. Therefore, the necessary alarm is issued at an appropriate level of importance according to the combination of weighting and the availability of alarm monitoring for the card or peripheral device. And a monitor information registering means for registering and changing each information in the monitor information table. An alarm Do monitored card or peripheral device can be set at any importance.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a monitoring control system according to the present invention. This monitoring and control system has the same L
It is composed of a plurality of process control stations _{21-N as} control stations on the _{AN 1} and a plurality of operator interface stations 31- _n as monitoring operation stations. Each of the operator interface stations 3 is monitored. The target process control station 2 is determined in advance. These process control stations 2 are provided with data of an external detector 5 via various cards 4 for process control or the like.
An operator interface station 3 has a plurality of CRT devices 10 for monitoring operation, while having an operation valve 6 operated by a controller and peripheral devices such as a printer 7, a data display 8 and an alarm buzzer 9. _{1 to m} .

Next, the configuration of an operator interface station which is a main part of the present invention will be described with reference to FIG. This operator interface station 3
Is whether de externally - whether de register the executability of the alarm monitoring through the data registration unit 12 - a descriptor table 13, the possibility de - alarm monitoring determination means for monitoring the alarm for each station based on data table 14, a monitoring information table 16 for registering monitoring information from outside via the monitoring information registration means 15, and an alarm generation means for generating alarms for the card 4 and the peripheral devices 7 to 9 in each station based on the monitoring information. 17 and an alarm issuing means 1 for receiving an alarm from the alarm monitoring determining means 14 or the alarm creating means 17 and issuing an alarm to the outside.
8.

The permission / rejection data registration means 12 is provided with an external C
It has a function of registering and updating information in the availability data table 13 based on data input from the RT device 10.

The availability data table 13 is a table for storing in advance monitoring availability data indicating whether or not alarm monitoring can be executed for each of the process control stations 2 and the operator interface station 3. And
As shown in FIG. 3, station numbers _{1 to N} for specifying each station are associated with CRT numbers _{1 to m} for specifying a CRT device by monitoring availability data indicating whether or not alarm monitoring can be performed. Here, the monitoring enable / disable data is a 1-bit flag, and when "0", alarm monitoring is executed.
"1" indicates that no alarm monitoring is performed.

The alarm monitoring and judging means 14 specifies the station based on the alarm when at least one of the process control stations 2 and the operator interface stations 3 generates an alarm. Then, based on the monitoring availability data, it is determined whether or not the station can monitor the alarm.

On the other hand, the monitoring information registration means 15 has a function of registering and updating information in the monitoring information table 16 based on data input from an external CRT device 10 .

The monitoring information table 16 stores alarm item data, at least for each card type and each peripheral device type in each of the process control stations 2 and the operator face stations 3 in advance. FIG. 4 is a table for storing monitoring availability data indicating whether or not alarm monitoring can be performed and weighting data indicating the importance of the alarm item, and is specifically as shown in FIG. As shown in the figure, the name data of the alarm item is predetermined in the system corresponding to the type of the card 4 or the peripheral devices 7 to 9, and the weighting data and the weight data and Monitoring availability data can be registered. Here, the corresponding bit of the weighting data is "0" for a light alarm and "1" for a heavy alarm, and the corresponding bit of the monitoring availability data is "0".
Indicates that alarm monitoring is to be performed, and "1" indicates that alarm monitoring is not to be performed.

When an alarm is generated in a certain card or peripheral device, the alarm creating means 17 specifies the type of the card or the peripheral device and an alarm item based on the alarm, Whether warning monitoring is possible or not is determined on the basis of monitoring possibility data, and when warning monitoring is possible or executed, a weighted warning is created based on the weighting data.

The alarm issuance means 18 issues an alarm when the alarm monitoring determination means 14 determines that alarm monitoring is permitted, and creates a weighted alarm by the alarm creation means 17. In this case, the weighted alarm is issued.

Next, the operation of such a monitoring and control system will be described with reference to the drawings. First, monitoring of alarms at only necessary stations will be described. First, the operator sets at least each process control station 2 as a station to be monitored for an alarm for each CRT device 10 . This setting is performed by displaying the station number and the station alarm monitoring setting screen in which ON / OFF is displayed on the CRT device 10 by the availability data registration means 12 as shown in FIG. When the user touches and reverses the display, and touches the OFF display of the station number not to be monitored, and reverses the display, the settings made by the reverse display are registered in the availability data table as monitoring availability data.

Note that such registration can be performed only for the CRT device 10 displaying the setting screen, that is, the monitoring station cannot be set for the other CRT devices 10 , so that the operator can , registers the station to monitor all of the CRT device 10 ₁ ~ _m.

Next, for example, when an alarm is generated at a certain process control station 2, the alarm is transmitted to the LAN.
The signal is input to the alarm monitoring / judgment means 14 in the operator interface station 3 through 1. The alarm monitoring-size
As shown in FIG. 6, the disconnecting means 14 determines the process control station number i from the received alarm (ST1) and initializes the CRT number j (ST2). Here, whether de - calls the data table 13 the process control station number i CRT device 10 _j of the CRT number j to determine whether to alarm monitoring (S
T3). When monitoring an alarm, the alarm issuance means 18 issues an alarm from the process control station i to the CRT device 10.
_j (ST4), and thereafter, the alarm monitoring determination means 1
4 adds 1 to the CRT number j (ST5).

Also, when the alarm is not monitored in ST4, ST
Go to 5. Next, when the new CRT number j to which 1 is added is equal to or less than the number m of all the CRT devices 10 , ST is repeated.
The processing is started from 3 and the processing is terminated when the number is greater than the number m.

As described above, all the CRT devices 10 ₁ to _m
At least each process control station 2 is set as a station to be monitored in advance, so that, for example, when a certain process control station generates an alarm, an operator monitoring the CRT device 10 needs a required process control station. Can be issued only.

Next, the monitoring of the alarm of the card and the peripheral device will be described with reference to the drawings. It is assumed that the CRT number for the station number has been determined as described above.
Further, the description of the same processing for all the CRT apparatuses 10 is omitted, and here, the processing will be described using a certain CRT apparatus 10 _j as a representative.

First, the operator sets the monitoring information registration means 1
The CRT screen of FIG. 7 is called by 5 to register whether or not to perform the alarm monitoring and the weight of the alarm to be executed for each of the card type and the alarm item or the peripheral device type and the alarm item. Here, the CRT screen displays a type number, a type name, and an alarm item name, which are determined in advance for each card type or peripheral device type, and whether or not alarm monitoring can be registered or updated, and alarm weighting. I do. With such a screen, the operator touches a horizontal ON display and reversely displays the ON display portion when monitoring an alarm for each of the corresponding card type and alarm item or the peripheral device type and the alarm item on the screen. When alarm monitoring is not performed, the user touches the OFF display next to the alarm display to highlight the OFF display portion and register necessary information.

Similarly, the operator registers the weight of the alarm by touching the "heavy" or "light" portion corresponding to the ON display and highlighting the portion. The monitoring information registering means 15 stores the setting by the reverse display in the monitoring information table 16 as monitoring enable / disable data and weighting data.

Next, when an alarm is generated in a certain card or peripheral device in the process control station 2, the alarm is input to the alarm generating means 17 in the operator interface station 3 via the LAN 1. As shown in FIG. 8 , the alarm creating means 17 determines the type k of the card or the peripheral device from the received alarm (ST)
11) and an alarm item 1 is determined (ST12).

Here, it is determined whether or not the monitoring information table 16 is called to monitor the type k of the card or the peripheral device by alarm (ST13). In the case of alarm monitoring, weighting is determined based on the weighting data (ST14).
In the case of "heavy" creates a heavy alarm and alarm on the CRT device 10 _j via the alarm onset report unit 18 (ST15), "light"
In the case of (1), a light alarm is similarly issued (ST16), and the process is terminated.

If no alarm is to be monitored in ST13, the process is terminated.

As described above, it is possible to set in advance whether or not alarm monitoring can be performed and the weight of an alarm for each card type and alarm item, and for each peripheral device type and alarm item.
When an alarm occurs in a certain card or peripheral device, a necessary alarm can be issued with appropriate weighting.

As described above, according to the present embodiment, the station to be monitored can be set arbitrarily in advance for each CRT device 10. For example, when a certain process control station 2 issues an alarm, Based on the alarm, the alarm monitoring determination means 14 identifies the process control station 2 that has issued the alarm and calls the availability data table 13 to determine whether the process control station 2 can perform the alarm monitoring.
Only when the alarm monitoring is possible, the alarm issuance means 18 issues the alarm, so that it is possible to select and issue only the alarm of any desired station.

Thus, when an alarm occurs, the operator can take prompt action. Further, since the operator is not distracted by the alarm of the station which is not to be monitored, an extra burden on monitoring is eliminated, and further, an adverse effect on the process can be prevented.

Further, various alarm items are provided in advance for each card type and peripheral device type, and for each of these alarm items,
Since the execution of the alarm monitoring and the weight of the alarm can be arbitrarily set, when an alarm is generated in a certain card or a peripheral device, based on the alarm, the alarm creating means 17 determines the card that issued the alarm. 4 or peripheral equipment 7 ~
9 and the alarm item, and calls the monitoring information table 16 to call the card 4 or the peripheral device 7-9.
When the alarm monitoring is possible, a weighted alarm is created by the weighting data, and the alarm issuance unit 18 issues the weighted alarm. With the combination of, the necessary alarm can be issued with an appropriate importance.

Therefore, it is possible to finely set the alarm items and the weights of the alarms in accordance with the contents of the system, and when a heavy alarm occurs, the operator can take the highest priority.

Although the present invention has been described in the context of weighting an alarm in two stages, a heavy alarm and a light alarm, by changing the flag assignment in the table from one bit to two bits, a heavy alarm and a medium alarm can be set. The same can be applied to three stages of an alarm and a light alarm.

The card type, peripheral device type, and alarm item data in the monitoring information table 16 have been described as being determined in advance by the system. However, monitoring information is registered according to a change or extension of the system. Even if the registration and updating can be performed by the means 15, the same can be implemented.

Further, the operator interface station 3 includes a plurality of process control stations 2.
However, the present invention can be similarly implemented by monitoring other operator interface stations 3 and their cards and peripheral devices. In addition, the present invention can be implemented with various modifications without departing from the scope of the invention.

[0043]

As described above, according to the present invention, whether or not alarm monitoring can be executed is registered at least for each control station among each control station and each monitoring operation station, and the card type and peripheral equipment are registered. By providing alarm item data corresponding to each type and registering whether or not to perform alarm monitoring and weighting of alarms in accordance with these alarm item data, an alarm can be issued by a station, a card, or a peripheral device. When an alarm occurs, an alarm is issued by judging whether or not alarm monitoring can be performed and the weight of the alarm based on the registered information. Therefore, even a large-scale system for monitoring and controlling a plurality of processes is required. It is possible to provide a monitoring control system that issues only station alarms and weights alarms in accordance with the system.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a monitoring control system to which the present invention is applied.

FIG. 2 is a diagram showing a configuration of an operator interface station which is a main part of the present invention.

FIG. 3 is a diagram showing a configuration of a propriety data table.

FIG. 4 is a diagram showing a configuration of a monitoring information table.

FIG. 5 is a diagram showing a station alarm monitoring setting screen.

FIG. 6 is a flowchart showing the operation of the alarm monitoring means.

FIG. 7 is a diagram showing an alarm monitoring setting screen of a card / peripheral device.

FIG. 8 is a flowchart showing the operation of the alarm creating means.

[Explanation of symbols]

1 ... LAN, 2 ... Process control station,
3 ... operator interface station, 4 ... card, 11 ... alarm monitoring device, 12 ... possibility data registration means,
13: availability data table, 14: alarm monitoring means, 15
... Monitoring information registration means, 16 ... Monitoring information table, 17 ...
Alarm creating means, 18 ... Alarm issuing means.

Claims (2)

(57) [Claims] 1. A supervisory control system provided with a plurality of supervisory operation stations for supervising and controlling a plurality of control stations, wherein each supervisory operation station is provided in advance of each of said control station and said supervisory operation station. Among them, at least for each card type and each peripheral device type in each control station, alarm item data, monitoring enable / disable data indicating whether or not alarm monitoring can be executed, and weighting data indicating importance of the alarm items. A monitoring information table for storing data, when an alarm is generated in a certain card or peripheral device, the type of the card or the peripheral device and an alarm item are specified based on the alarm, and based on the monitoring enable / disable data. It is determined whether alarm monitoring can be performed or not. If alarm monitoring is enabled, a weighted alarm is generated based on the weighting data. A monitoring control system, comprising: an alarm generating unit configured to generate an alarm; and an alarm issuing unit configured to issue the weighted alarm generated by the alarm generating unit. 2. The monitoring control system according to claim 1, wherein the monitoring availability table and the weighting data in the monitoring information table are registered based on externally input data.
A monitoring control system characterized by adding monitoring information registration means for updating.