<< Click to Display Table of Contents >> Manual > Monitoring system construction guide > Establishing major functions > Alarms > Customizing alarms > Creating a representative alarm signal (client version)

 

 

overview

Remote alarm grid client control (or Remote alarm client control) has a feature called "Alarm State Monitor".

 

By setting an alarm state monitor, you can monitor the alarm detection status of the Alarm server to which the control is connected, and write the alarm status to a tag. This function is used when generating a representative alarm signal on the client side. The alarm state monitor is set in the AlarmStateMonitor property. For details about this property, see "Properties" in Remote alarm grid client control in the Control Reference.

 

Here, we will make the following customizations to the standard alarm function.

 

Customization details

 

•Configure the alarm state monitor function of the remote alarm grid and create a representative alarm signal in Browser tag.

•Add a lamp display for the representative alarm on the screen.

 

(Image of a representative warning light added to the title of the standard framework)

 

 

 

Download the sample

The creation examples shown on this page are provided with samples.

 

The sample can be downloaded from below.

 

 

 

Procedure

■ Setting the alarm state monitor function

 

The alarm state monitor settings should be implemented in only one control among all the alarm grids (or alarm clients) placed on the form that always exists on the client side. If the same settings are applied to multiple controls, similar monitoring processes will be executed multiple times, which may cause problems such as heavy processing load.

 

As an example, we will use the remote alarm grid, which is used for the alarm summary that is always displayed at the bottom of the screen in the standard framework.

 

 

 

 

1.Select the alarm summary form at the bottom of the screen

 

From the Panel Editor workspace tree, select "frmBottom" under the Forms folder.

 

 

Double-click the Remote Alarm Grid located in the center of the form to display the settings dialog.

 

 

 

2.Set the AlarmStateMonitor property

 

Select "Advanced Settings" and "Alarm" from the settings dialog, and click the setting button for the representative alarm (AlarmStateMonitor property).

 

 

Enter the following three lines in the editor that appears and click the OK button.

 

 

(Settings)

 

With the above settings, if there is even one active or unacknowledged alarm for each alarm level defined in CM2, True will be written to Browser tag specified in the first parameter.

 

•Alarm level 1 (minor malfunction) - $M1000

•Alarm level 2 (medium failure) - $M1001

•Alarm level 3 (serious malfunction) - $M1002

 

 

■ Create a representative alarm lamp

 

Next, create a lamp to display the status of the representative alarm.

 

As an example, we will place a lamp in the title area that is always displayed at the top of the screen in the standard framework.

 

 

1.Select Forms in the title area at the top of the screen

 

From the Panel Editor workspace tree, select "frmTitle" under the Forms folder.

 

 

 

Place a lamp switch part from the parts library on the form above and add a representative alarm display.

 

 

2.Paste a part from the parts library

 

From the Library tab in Panel Editor, display the lamp switch parts in the parts library, select the "lampswitch123" part and paste one onto the form.

 

 

Once you have pasted it onto the form, adjust the size of the part as needed. (You can put a group of parts into edit mode by holding down the Ctrl key and double-clicking a part.)

As an example, we've adjusted the width of the Caption label to be narrower and changed the font size to 10 points.

 

 

Once you have finished adjusting the size of the part, double-click it to display the settings dialog and set it referring to the following.

 

 

Note that $M1000 specified as the input tag above is Browser tag, which was specified as the output destination for the representative signal of a minor fault in the alarm state monitor. Also, the format specified for the ON color can be simply copied and pasted from the default alarm color for parts, "@FAST,@AlarmColor". Additionally, the caption color is fixed to white (#FFFFFF).

 

Once you have finished setting up the minor fault lamps as described above, copy the minor fault lamps and paste them side by side.

 

 

After copying and pasting, change only the settings that are different.

 

 

This completes the setup process.

 

 

Operation check

Now let's check how it works.

 

Click Online (yellow arrow) at the top of the Panel Server screen.

Next, click the browser run icon (green arrow) at the top of the Panel Editor screen to call up Panel Browser.

 

Once Panel Browser is running, display the alarm summary screen.

 

 

Please make sure that the representative alarm lamp you just created is placed in the title section at the top of the screen.

At present, no alarms have been issued, so all the lights are off.

 

 

 

If you write True to the alarm tag for a minor fault from Panel Server, the corresponding minor fault will be displayed in the alarm summary and the representative alarm lamp for the minor fault will flash.

 

 

Next, write True to the alarm tags for medium failure and severe failure.

 

The corresponding alarm will then be displayed in the alarm summary and all representative alarm lamps will start flashing.

 

 

 

Next, from Panel Server, change the tag value for each alert back to False.

 

The three alarms in the alarm summary are now waiting for confirmation, but all of the main alarm lamps continue to flash.

 

 

Now, select the alarms one by one from the alarm summary screen and click the "Confirm selection" button.

First, select and check the row for the serious fault alarm.

 

 

 

Then, the serious malfunction lamp, which had been restored and confirmed, went out.

 

 

Select and check the other alarms one by one and make sure that all the main alarm lamps are turned off.

 

 

In this way, by using the Alarm State Monitor, you can easily output the status of alarms such as representative alarm signals to tags. The representative alarm output to Browser tag can be used for lamp displays on the client side, as in this example.

 

 

supplementary explanation

■ Alarm state monitor settings

 

The format defined for the alarm state monitor must conform to the following specifications.

 

Tag name, state name, monitored alarm, group condition

 

For example, in this example, the following is written:

 

$M1000, LEVEL1, notack_or_notrecover, [CM2]==1

$M1001, LEVEL2, notack_or_notrecover, [CM2]==2

$M1002, LEVEL3, notack_or_notrecover, [CM2]==3

 

In the first line above, if there is at least one alarm that has occurred or is unacknowledged among the alarms with a CM2 definition of 1 (i.e. minor fault alarms), True is written to the $M1000 tag.

 

Here, you can also specify the following for the alarm to be monitored:

 

notack - Writes True if there is at least one unacknowledged alarm.

notrecover - Writes True if there is at least one unrecovered alarm.

 

For example, you can use it according to your needs, such as when you want to see only the confirmation status or when you want to see only the return status of the actual alarm signal.