Table of Contents

Custom Alarms

Andres Andresson Updated by Andres Andresson

Custom Alarm

The Custom Alarm function in VDV lets you configure an alarm to be given if the average, rate of change or sum of a variable over a chosen time period exceeds, is equal to or lower than the alarm limit chosen or if the latest value is higher, lower or equal to the chosen limit.

 

You can set up a new custom alarm by clicking Alarm > Custom Alarm > New

  1. Choose your Variable by clicking the +Variable Button
  2. Choose whether you want your alarm to be triggered by a value higher, lower than or equal to your alarm limit.
  3. Choose your alarm limit.
  1. Choose whether you would like your alarm to be triggered by the latest recorded value or the averagesum or rate of change over a chosen number of hours.

If Rate of Change is chosen: Check "Absolute Value" if you would like your alarm to be triggered only for a positive ROC value.

  1. Give your Custom Alarm a name.
  2. Choose the contact group which will receive the alarm messages.
If you have not configured a contact group go to Configuration > Contact Group Setup and create a contact group.
  1. Alarm messages will be sent and repeated until the alarm is confirmed. Choose the number of minutes you would like to pass between repetitions. 
Check "Skip Off Alarms" if you choose not to be notified when the recorded value goes back out of the alarm range. 
  1. VDV sets up a default message based on your configurations. It is possible to customize the message using the following merge fields:

$ALARM_NAME$

$ON/OFF$

$SITE_NAME$

$NOW$

$TIMESTAMP$

$VALUE$

$LIMIT_VALUE$

$VARIABLE_NAME$

  1. Include an optional description. The description will not be included in the alarm message.
  2. Check "Monitor" to turn on your Custom Alarm and start monitoring your chosen variable.

Multi-Condition Alarm

With this feature, it's possible to configure alarms with multiple alarm conditions separated by conditional operators, AND and OR. If the equation will evaluate to true, then the alarm will be triggered. 

  1. To set up a new multi-condition alarm select Setup -> Custom Alarm and select the plus icon on the top right corner of the screen.
  2. Click the Multi Condition checkbox in the upper right corner, this will change the view in the browser window.

  1. Now click the plus icon in the center of the screen which will add a new condition.
  2. When a condition has been created it's possible to select a variable by clicking the "Select Variable" button on the condition, which will open the default VDV Variable Selector. It's also possible to change the arithmetic operators by clicking the operator, available operators are <, =, >. Finally, adjust the alarm limit for that condition before creating a new one.
  3. Add a new alarm condition by clicking on the plus button again or when hovering over a condition two more plus button will appear on the left and right side of that condition. By clicking on either of those a new alarm condition will be added before or after that condition. Using this method allows conditions to be added in-between a large set of conditions.
  4. When the second condition has been added a conditional operator is separating the two conditions. Simply click the operator (default AND) to change it.
  5. Repeat steps 3 through 6 to add all the conditions needed for the alarm.
  6. To remove a condition from the alarm Ctrl-Click the condition (it will change to color green) and click the button with the trash bin and that will remove the selected condition. One or more conditions can be removed at once.
    Note: By selecting two conditions that are not next to one another all conditions between them will be selected
  7. By adding parentheses, the order of operations can be modified. Ctrl-Click the conditions and click the button with the "(X)" label and that will wrap the selected conditions in parentheses.
  8. Finally, give the alarm a name and select a contact group, adjust the delay or repeat if needed. Also, change the alarm email template if required and Save. 

Rolling Alarm

With this feature it is possible to configure a rolling alarm with both single or multiple conditions separated by conditional operators, AND and OR. If the equation will evaluate to true for the selected time period, then the alarm threshold will be triggered. 

  1. To set up a new rolling alarm select Setup -> Custom Alarm and select the plus icon on the top right corner of the screen.
  2. Click the Multi Condition checkbox in the upper right corner and the rolling alarm checkbox will appear, click the Rolling Alarm checkbox and this will change the view in the browser window.
  1. Now click the plus icon in the center of the screen which will add a new condition.
  2. When a condition has been created it's possible to select a variable by clicking the "Select Variable" button on the condition, which will open the default VDV Variable Selector. It's also possible to change the arithmetic operators by clicking the operator, available operators are <, =, >. Finally, adjust the alarm limit for that condition before creating a new one.
  3. Add a new alarm condition by clicking on the plus button again or when hovering over a condition two more plus button will appear on the left and right side of that condition. By clicking on either of those a new alarm condition will be added before or after that condition. Using this method allows conditions to be added in-between a large set of conditions.
  4. When the second condition has been added a conditional operator is separating the two conditions. Simply click the operator (default AND) to change it.
  5. Repeat steps 3 through 6 to add all the conditions needed for the alarm.
  6. To remove a condition from the alarm Ctrl-Click the condition (it will change to color green) and click the button with the trash bin and that will remove the selected condition. One or more conditions can be removed at once.
    Note: By selecting two conditions that are not next to one another all conditions between them will be selected
  7. By adding parentheses, the order of operations can be modified. Ctrl-Click the conditions and click the button with the "(X)" label and that will wrap the selected conditions in parentheses.
  8. Now enter the time period into rolling hours and the number of hours that would exceed the threshold for an alarm to be triggered into exceedance.
  9. Finally, give the alarm a name and select a contact group, adjust the delay or repeat if needed. Also, change the alarm email template if required and Save. 

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