JPH09244737A - Alarm parameter registration device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it easy to set and register alarm parameters of many process quantity detecting means. SOLUTION: To set alarm parameters of one process quantity detecting means, a process variable PV of this process quantity detecting means is inputted through a process variable input part 11, an alarm parameter arithmetic part 13 selects a suitable alarm parameter setting pattern out of alarm parameter setting patterns registered in an alarm parameter setting pattern registration part 12 and automatically calculates an alarm parameter for the inputted process variable on the basis of the selected alarm parameter setting pattern, and an alarm parameter registration part 14 registers this calculated alarm parameter as an alarm parameter for the specific process quantity detecting means. Consequently, an operator becomes able to set alarm parameters for various process quantity detecting means through pattern selecting operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm parameter registration device in a plant operation monitoring device.

[0002]

2. Description of the Related Art A plant operation monitoring device has a structure as shown in FIG.
1b, ... Process control 2a, 2b ,.
Controlled by this process control 2
The operation computer 3 which absorbs various process data collected by a, 2b, ... And gives a necessary operation command is connected to the process control 2a, 2b ,.
It is connected by a communication line 4 such as N.

The operation computer 3 is a CRT as an interface for an operator to perform monitoring work.
It is equipped with a monitoring device 5, which displays the current status of each part of the plant as a process flow screen, and if an error occurs, the tag color change display and flicker display on the screen assigned to the equipment at the corresponding location. In addition to performing the above, it also generates an alarm sound to inform the operator. Further, on / off operation of necessary equipment can be inputted from the CRT monitoring device 5.

By the way, whether or not the process value of each part of the plant, such as the flow rate, the temperature, the pressure, the current value, the voltage value, etc. is abnormal, the sensors necessary for monitoring the plant are used. Installed, the process variable PV is first taken into the process control 2a, 2b, ... From the sensors and is compared with an alarm parameter such as an upper limit value or a lower limit value set in advance to make a determination. When a process variable exceeding the alarm parameter is detected, the process variable is transmitted to the operation computer 3 and the abnormality occurrence is also transmitted to the operation computer 4. The operation computer 4 has the abnormality on the CRT monitor screen. An alarm sound is generated together with a color change display and flicker display of the tags corresponding to the locations where the sensors are installed so that the operator can be informed and necessary measures can be taken.

[0005]

However, in such a conventional plant operation monitoring device, there is a problem that a great deal of labor is required for setting an alarm parameter for the process variable of various sensors. That is, in a large-scale plant, the number of sensors becomes enormous, but it is necessary to set alarm parameters for each of those sensors. In the past, since the setting work of this alarm parameter was performed by using the keyboard as an engineering value corresponding to the process variable for each sensor, a huge amount of work was required.

[0006] In addition, the optimum value of the process variable may change depending on the type of process due to changes in the secular characteristics of the plant, and it is necessary to change the alarm parameter for such process variable. Conventionally, in such an alarm parameter changing operation, the tag of the sensor is designated and the alarm parameter is input numerically one by one from the keyboard, and in this respect, the labor required by the operator is great.

The present invention has been made in view of the above conventional problems, and the registration of alarm parameters for various sensors can be easily performed by the operation of selecting from the alarm parameter setting patterns registered in advance. An object is to provide an alarm parameter registration device as described above.

[0008]

According to another aspect of the present invention, there is provided an alarm parameter registration device which registers a process variable input section for inputting a process variable detected by a process amount detecting means and a plurality of alarm parameter setting patterns. The alarm parameter setting pattern registration unit, the pattern selection unit that selects one alarm parameter setting pattern from the alarm parameter setting pattern registration unit, and the process variable input by the process variable input unit are selected by the pattern selection unit. An alarm parameter calculation unit that calculates an alarm parameter based on one alarm parameter setting pattern, and an alarm parameter calculated by the alarm parameter calculation unit is used as an alarm parameter for the process amount detection means. It is obtained by a alarm parameter registration unit for registering.

In the alarm parameter registration device according to the first aspect of the present invention, when the alarm parameter of a certain process amount detecting means is set, the process variable of the corresponding process amount detecting means is input by the process variable input section, and An appropriate alarm parameter setting pattern is selected by the pattern selecting unit from the alarm parameter setting patterns registered in the alarm parameter setting pattern registration unit, and is passed to the alarm parameter calculation unit.

As a result, the alarm parameter calculation unit automatically calculates the alarm parameter for the input process variable based on the selected alarm parameter setting pattern, and the alarm parameter registration unit calculates the calculated alarm parameter. It is registered as an alarm parameter for the specific process amount detecting means.

Therefore, for the operator, the alarm parameters for the various process amount detecting means are pointed out one by one,
Even if the user does not type in numbers with the keyboard, it becomes possible to set the pattern by the pattern selection operation, and the labor required for the alarm parameter setting work is reduced.

According to another aspect of the present invention, there is provided an alarm parameter registration device, wherein a plurality of process amount detection means are grouped and registered by groups having a common alarm parameter setting pattern, and a plurality of process variable unit registration parts are registered. The alarm parameter setting pattern registration unit that registers the alarm parameter setting pattern of No. 1, the pattern selection unit that selects one alarm parameter setting pattern from the alarm parameter setting pattern registration unit, and the one that is registered in the process variable unit registration unit 1 Each process variable of one group is called, and an alarm parameter is set for each process variable of the process amount detection means of the group based on one alarm parameter setting pattern selected by the pattern selection unit. And an alarm parameter batch registration unit that collectively registers as an alarm parameter for each process variable of a plurality of process amount detection means belonging to one group calculated by the alarm parameter calculation unit. Be prepared.

In the alarm parameter registration device according to the second aspect of the present invention, a plurality of process amount detecting means are grouped into groups having common alarm parameter setting patterns and registered in the process variable registration section.
When it is necessary to set an alarm parameter for each process variable of the process amount detection means of a certain group, each process variable of the process amount detection means belonging to the corresponding group is called from the process variable group registration unit, and a process belonging to that group is also called. The alarm parameter setting pattern to be applied to each process variable of the quantity detecting means is selected by the alarm parameter setting pattern selecting section from the alarm parameter setting pattern registering section.

As a result, the alarm parameter calculation unit calculates an alarm parameter for each process variable of the plurality of process amount detection means belonging to the group based on the selected alarm parameter setting pattern, and the alarm parameter batch registration unit calculates the alarm parameter. Are collectively registered as an alarm parameter for each process variable of the process amount detecting means belonging to.

Therefore, the operator should collectively set and register the alarm parameters of the process variables of the plurality of process amount detecting means belonging to each of the plurality of process amount detecting means employed in the plant. Therefore, less labor is required for the alarm parameter setting work.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. The alarm parameter registration device of the present invention is used by being registered as a software program in the operation computer 3 in the general plant operation monitoring device shown in FIG. 1, and is used in a multi-window format on the display screen of the CRT monitoring device 5. It can be executed by touch operation or mouse operation on the alarm parameter setting screen displayed by, and by inputting a numerical value from the keyboard if necessary. FIG. 2 shows a functional configuration of one embodiment of the present invention, in which one tag displayed on the process flow screen of the CRT monitoring device 5, that is, a process amount detecting means such as a sensor or an instrument is designated. A process variable input unit 11 that calls the process variable PV, a plurality of types of alarm parameter setting patterns, for example, a% value setting pattern of an upper limit PH / lower limit PL, an upper limit PHH.
/ The alarm parameter setting pattern registration unit 12 that registers the% value setting pattern of the lower limit PLL, the setting pattern of 0/100%, the alarm prohibition (monitoring off), and the process variable input unit 11 are input. An alarm parameter setting unit 13 that selects and calls one alarm parameter setting pattern from the alarm parameter setting pattern registration unit 12 for a process variable and sets an alarm parameter for the process variable, and this alarm parameter setting unit 13 Stores the alarm parameter set by the process control 2a, 2b, ...
The alarm parameter registration unit 14 downloads to the.

Next, the operation of the alarm parameter registration device having the above configuration will be described. With the process flow window W1 of FIG. 4 opened, the process variable (PV) input unit 11 sets the process 1a, 1b,
One tag (from a number of sensors and process amount detecting means such as instruments (for example, flow rate sensor, temperature sensor, pressure sensor, liquid level sensor, voltage detector, current detector, etc.) installed in each part of ... When the sensor identification number) is selected, the alarm parameter setting window W in FIG.
2 is opened (hereinafter, it is assumed that the tag with the sensor name A is selected for the sake of simplicity). Then, the process variable PV is set for the tag with the sensor name A (step S in the flowchart of FIG. 3).
1).

Here, as the process variable PV,
Depending on the plant condition, the current instantaneous value may not always be the optimum value. In addition to using the instantaneous value, the optimum value can be selected from the trend data registered in the system and imported, or the numerical value can be entered directly from the keyboard. The method shall be selectable.

Alarm parameter setting pattern registration section 1
Information of the alarm parameter setting pattern window W3 of FIG. 4 is registered in 2, and when the alarm parameter setting unit 13 receives the process variable PV from the process variable input unit 11, the alarm parameter setting window W2 is expanded and the process is performed. The process variable is displayed on the variable display portion B1. Further, when the alarm parameter setting section B2 is designated by a touch operation or a pointing operation with a mouse, the alarm parameter setting pattern window W3 shown in FIG. 4 is expanded.

Therefore, the alarm parameter setting pattern is selected in the alarm parameter setting pattern window W3 (step S2). In the alarm parameter setting pattern window W3 registered in the alarm parameter setting pattern registration unit 12, (1) upper limit value PH / lower limit value PL (2) upper limit value PHH / lower limit value PLL (3) deviation limit value DPV (4) manipulated variable upper limit value MH / manipulated variable lower limit value ML (5) Monitoring off (alarm prohibited), etc. are provided, and soft key SK1 for selecting each is prepared, and the process variable PV input simultaneously is restricted. A setting button SK2 for setting the value as a% value is also prepared.

One of the setting buttons SK2, (PV + 5
%, PV-10%) means that the upper limit value or upper limit value is + 5% with respect to the input process variable PV.
It means that the lower limit value or the lower limit value is set to −10% with respect to the process variable PV. Also, here, the numerical values of + 5% and -10% can be changed and set from the keyboard.

Similarly, 0/100% means that the upper limit value or upper limit value is set to full scale and the lower limit value or lower limit is set in the instrument pattern (shown in FIG. 5) for displaying the input process variable. The limit values are set to 0% of full scale. In addition, monitoring off means prohibiting alarm reporting.

In this manner, with the alarm parameter setting pattern window W3 opened, one of the soft keys SK1 for designating the type of the limit value is designated, and one of the limit value% value setting buttons SK2 is pushed. By the designation, the alarm parameter setting unit 13 automatically calculates an alarm parameter for the process variable PV input by the calculation next, and registers it in the alarm parameter registration unit 14 (steps S3 to S5).

It is assumed that PHPL (upper limit value / lower limit value) is specified in the alarm parameter setting pattern window W3 and then (PV + 5%, PV-10%) is selected. In this case, in the flowchart of FIG. 3, α = 5 and β = 10, and the alarm parameter setting unit 13 first sets the alarm parameter% value to an absolute value, that is, a numerical value in which the unit is combined with the engineering value of the process variable PV. Range conversion for conversion into a and b is performed (step S3).

That is, a = PV × α / 100 and b = PV × β / 100 are calculated. Here, if it is necessary to change the% values α and β of the alarm parameter setting pattern, they can be changed and set by touching the corresponding portion and newly inputting a numerical value from the keyboard.

Then, PH = PV + a, PL = PV-b are obtained as the upper limit value PH and the lower limit value PL, and the results are displayed in the alarm parameter setting section B2 of the alarm parameter setting window W2, and if necessary. If there is a display instruction from the operator, it is displayed as an instrument pattern W4 as shown in FIG. 5 (step S
4).

When the operator confirms by viewing the display of the alarm parameter setting section B2 or the instrument pattern W4 and giving a registration permission command, this is output to the alarm parameter registration section 14 (step S5).

The alarm parameter registration unit 14 registers the set alarm parameters in the storage device and downloads them to the corresponding process control among the process controls 2a, 2b, ... In the system shown in FIG. Will be used for.

After the above-mentioned steps S1 to S5 are executed for various process variable PVs, the alarm parameter setting registration work is completed (step S6).

In this way, according to the first embodiment of the present invention, it is not necessary to set the alarm parameter settings of a large number of process amount detecting means numerically for each process amount detecting means, and the process variable of the optimum value can be obtained. Input operation of
The setting can be registered only by selecting the alarm parameter setting pattern, and the labor required for the operator to set the alarm parameter is reduced.

In the above embodiment, the alarm parameters for the process variable are selected and registered from a number of setting patterns. However, as shown in FIG. If the setting pattern of the alarm parameter for the process variable PV and the% value of the limit value are fixed to one-to-one and the comparison table 15 is registered in the operation computer 3, the process which is a secular change of the plant When it becomes necessary to change the optimum value of the process variable of the quantity detecting means from the initial setting, the optimum value can be input to the process variable input unit 11 and the alarm parameter setting command can be given. Automatically refer to the above comparison table 15 and set the alarm parameter setting pattern. It reads the emissions, it is possible to register to automatically calculate the alarm parameters for a process variable have changed based on the set pattern. In FIG. 6, the same components as those in FIG. 2 are designated by the same reference numerals.

For example, in the above example, if the input process variable PV is for a certain flow sensor, the comparison table 15 shows the upper limit value PH / lower limit value PL as the alarm parameter setting pattern applied to this flow sensor.
Only, and the% value is (PV + 5%, PV-1
0%), and the alarm parameter setting unit 13 inputs a new optimum value as the process variable PV for the process amount detecting means from the process variable input unit 11 of the comparison table 15 With reference to the registered contents, the alarm parameter is calculated and registered in the alarm parameter registration unit 14 based on the following calculation.

PH = PV + PV × 5/100, PL =
PV-PV × 10/100 As a result, the number of times the operator selects and specifies the alarm parameter setting pattern is reduced, and the alarm parameter setting management becomes easier.

Next, a second embodiment of the present invention will be described with reference to FIGS. The feature of the second embodiment is that various process amount detecting means for monitoring various processes of a plant are divided into groups for each process amount detecting means having a common alarm parameter setting pattern, and the processes belonging to each group are grouped. This is because the alarm parameters can be collectively registered and set for the process variable of the quantity detecting means.

For example, many plants are found to have a large number of units with similar process flows.
In such a plant, in many cases, the same kind of process amount detection means installed between process flows of the same kind is installed in almost the same place. Therefore, it is expected that the same alarm parameter setting patterns will be adopted for the process variables of the same kind of process amount detecting means.

In view of this, in the second embodiment, the process variable unit registration section 21 for registering the process amount detection means of the same kind having the same alarm parameter setting pattern by grouping, and the process variable unit registration section 21. A process variable input unit 22 for setting each process variable of each process amount detecting unit belonging to one process variable unit selected from 21, and a plurality of types of alarm parameter setting patterns, for example, upper limit value PH / lower limit value PL. An alarm parameter setting pattern registration unit 23 that registers a% value setting pattern, a% value setting pattern of the upper limit value PHH / lower limit value PLL, a setting pattern of 0/100%, an alarm prohibition (monitoring off), and the like, By the process variable input unit 22 A common alarm parameter setting pattern is selected from the alarm parameter setting pattern registration unit 23 for the input process variable and is called and applied, and the alarm parameter for each process variable is set as the alarm parameter of each process amount detecting means. The alarm parameter setting unit 24 is configured as follows. The alarm parameter setting unit 24 stores the alarm parameters set by the alarm parameter setting unit 24 and downloads them to the process controls 2a, 2b, ... Shown in FIG. There is.

Next, the operation of the alarm parameter registration device having the above configuration will be described. In the process variable unit registration unit 21, the sensors that can share the optimum process variable value and the alarm parameter setting pattern in the monitored plant are grouped and registered.

When it is necessary to register or re-register the alarm parameter for a certain process variable PV, the alarm parameter setting unit 24 calls the corresponding process variable PV group from the process variable registration unit 21 (step S11).

Then, the optimum value is input for each process variable of the group called from the process variable input unit 22 (step S12). As the optimum value of each process variable, if the plant is operated in a relatively stable state, it is necessary to input the instantaneous value of the process as the process variable PV and set the process variable in the past stable state as the optimum value. If so, the trend data can be read out, and the optimum value can be numerically input from the keyboard (step S1).
2).

Upon receiving each process variable PV from the process variable input unit 22, the alarm parameter setting unit 24 next selects an alarm parameter setting pattern (steps S13 and S14).

Alarm parameter setting pattern registration unit 2
The alarm parameter setting patterns registered in 3 are (1) upper limit value PH / lower limit value PL (2) upper limit value PHH / lower limit value PLL (3) deviation limit value DPV (4) manipulated variable upper limit value MH / manipulated amount lower limit value ML (5) Monitoring off (alarm prohibited), etc., and the limit value for process variable in each alarm parameter setting pattern is%
The setting pattern of the alarm parameter% value specified as a value is also registered.

That is, (i) PV + α%, PV−β% (ii) PV ± γ% (iii) 0/100% (iv) Monitoring value (alarm prohibited) and other% value setting patterns.

Here, the upper limit value PH / lower limit value PL is designated as a common alarm parameter setting pattern,
Subsequently, it is assumed that the% value pattern of (PV + 5%, PV-10%) is selected. In this case, α = 5 and β = 10 in the flowchart of FIG. 8, and the alarm parameter setting unit 24 first adjusts the alarm parameter% value to an absolute value, that is, an engineering value of each process variable PV in unit. Range conversion for converting the numerical values a and b is performed.

That is, a = PV × α / 100 and b = PV × β / 100 are calculated (step S15).

Here, if it is necessary to change the% values α and β of the alarm parameter setting pattern, they are changed and set by newly inputting numerical values from the keyboard.

Then, PH = PV + a and PL = PV-b are obtained as the upper limit value PH and the lower limit value PL (step S16).

By the above procedure, the alarm parameter based on the common setting pattern is determined for each of the plurality of process amount detecting means belonging to one group. After that, if it is necessary to set the alarm parameter for another group, the above steps S11 to S16 are performed.
The alarm parameters are set for all necessary groups by repeating the procedure of (step S1).
7).

After that, the alarm parameter setting unit 24 collectively gives the set alarm parameters for each group to the alarm parameter registration unit 25, and the alarm parameter registration unit 25 registers the set alarm parameters in the storage device. At the same time, the process control 2a, 2b, ... In the system shown in FIG. 1 is downloaded to the corresponding process control and used for subsequent alarm management.

As described above, according to the second embodiment, the alarm parameter settings of each of the large number of process amount detecting means can be divided into groups and registered collectively for each group, and the alarm parameter settings can be registered. The setting can be performed only by selecting and designing from preset alarm parameter setting patterns, and the labor required for the operator to set the alarm parameters is further reduced.

In the second embodiment described above, the alarm parameters are selected and registered from several setting patterns for the process variable for each group, but as shown in FIG. For each group, the common setting pattern of alarm parameters for each process variable PV belonging to the group and the% value of the limit value are fixed to one-to-one, and the comparison table 26 is registered in the operation computer 3. Then, when it becomes necessary to change the optimum value of the process variable of the process amount detecting means, which is a secular change of the plant, from the initial setting value, the optimum value is input in the process variable input unit 22 to issue an alarm parameter setting command. Just by giving, the alarm parameter setting section 24 automatically Referring to reading the common alarm parameter setting pattern, it is possible to register to automatically calculate the alarm parameters for the process variable, respectively that have changed based on the set pattern. Note that, in FIG. 9, the same components as those in FIG. 7 are denoted by the same reference numerals.

As a result, the number of times the operator selects and specifies the alarm parameter setting pattern is reduced,
Alarm parameter setting management becomes easier.

[0052]

As described above, according to the invention of claim 1,
When setting the alarm parameter of a certain process amount detecting means, enter the process variable of the corresponding process amount detecting means, and select the appropriate alarm parameter setting pattern from the alarm parameter setting patterns registered in the alarm parameter setting pattern registration section. Is selected and an alarm parameter is automatically calculated based on the selected alarm parameter setting pattern for the input process variable and registered as an alarm parameter. For each alarm parameter to, without having to type in a number using the keyboard,
Since the pattern can be set by the pattern selection operation, the labor required for the alarm parameter setting work can be reduced.

According to the second aspect of the present invention, a plurality of process amount detecting means are divided into groups having common alarm parameter setting patterns and registered in the process variable group registration section, and the processes of a certain group are processed. If it is necessary to set an alarm parameter for the process variable of the amount detecting means, each process variable of the process amount detecting means belonging to the corresponding group is called from the process variable group registration unit, and the process amount detecting means of the group is detected. An alarm parameter setting pattern that is commonly applied to each process variable is selected from the alarm parameter setting pattern registration section, and the alarm parameter calculation section selects a plurality of parameters belonging to the group based on the selected alarm parameter setting pattern. Process variable each process amount detecting means calculates alarm parameters for,
Since the alarm parameters of the process amount detecting means belonging to the group are collectively registered, the operator can select a plurality of process amount detecting means adopted in the plant from a plurality of processes belonging to each group. The alarm parameters of the respective quantity detecting means can be collectively set and registered, and the labor required for the alarm parameter setting work is further reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a system configuration of a general plant operation monitoring device.

FIG. 2 is a functional block diagram of the first embodiment of the present invention.

FIG. 3 is a flowchart showing an alarm parameter registration procedure of the above embodiment.

FIG. 4 is an explanatory diagram showing development of a window screen by an alarm parameter registration operation according to the above embodiment.

FIG. 5 is an explanatory diagram of an instrument pattern showing a registration result of alarm parameters set in the above embodiment.

FIG. 6 is a functional block diagram showing a modified example of the first embodiment.

FIG. 7 is a functional block diagram of a second embodiment of the present invention.

FIG. 8 is a flowchart showing an alarm parameter registration procedure according to the above embodiment.

FIG. 9 is a functional block diagram showing a modified example of the second embodiment.

[Explanation of symbols]

1a, 1b process 2a, 2b process control 3 operation computer 4 communication line 5 CRT monitoring device 11 process variable input unit 12 alarm parameter setting pattern registration unit 13 alarm parameter setting unit 14 alarm parameter registration unit 15 process variable-alarm parameter setting pattern comparison Table 21 Process variable unit registration unit 22 Process variable input unit 23 Alarm parameter setting pattern registration unit 24 Alarm parameter setting unit 25 Alarm parameter registration unit 26 Process variable-Alarm parameter setting pattern comparison table

Claims (2)

[Claims] 1. A process variable input section for inputting a process variable detected by a process amount detecting means, an alarm parameter setting pattern registration section for registering a plurality of alarm parameter setting patterns, and the alarm parameter setting pattern registration section. A pattern selection unit for selecting one alarm parameter setting pattern, and an alarm parameter for the process variable input by the process variable input unit, based on the one alarm parameter setting pattern selected by the pattern selection unit And an alarm parameter registration unit for registering the alarm parameter calculated by the alarm parameter calculation unit as an alarm parameter for the process amount detection means. Ete made alarm parameters registration device. 2. A process variable unit registration section in which a plurality of process amount detecting means are grouped and registered by groups having a common alarm parameter setting pattern, and a plurality of alarm parameter setting patterns are registered. An alarm parameter setting pattern registering unit, a pattern selecting unit for selecting one alarm parameter setting pattern from the alarm parameter setting pattern registering unit, and calling each process variable of one group registered in the process variable unit registering unit ,
An alarm parameter calculator that calculates an alarm parameter for each process variable of the process amount detector of the group based on one alarm parameter setting pattern selected by the pattern selector, and 1 calculated by the alarm parameter calculator. An alarm parameter registration device comprising: an alarm parameter batch registration unit that collectively registers as an alarm parameter for each process variable of a plurality of process amount detection means belonging to one group.