Alarm

In the Alarm page of the Dashboard, you can configure alarm rules to monitor Data Source tags. When these tags reach or trigger the conditions you set, the Alarm Display widget on the Dashboard will trigger an alarm. Additionally, you can also view alarm history on the same page to track and review past alarm events. This design is intended to help you promptly identify and address potential issues, ensuring the stable operation of the system.

Setting Alarm Rules

1. Select the specified HMI

   At the top of the page, choose the HMI you want to operate.

2. Add Alarm Rule

   Click the "+ Add Rule" button to set up monitoring for the data source tag.

3. Conditions

Based on the data type, choose appropriate operators and operands.

• Data Type: Int & Float

  Operator	Operand	Trigger	Normal
  >	1	2	1
  >=	1	1	0
  <	2	3	2
  <=	2	3	1
  ==	2	2	1
  !=	2	3	2

  • Data Type: String

  Operator	Operand	Trigger	Normal
  is	hello	hello	abc
  contains	hello	helloworld	abc
  doesn't contain	hello	abc	helloworld
  is empty			any word
  is not empty		any word

  • Data Type: Boolean

  Operator	Operan	Trigger	Normal
  ON		TRUE	FALSE
  OFF		FALSE	TRUE
  ON->OFF		Previous value TRUE, next FALSE	TRUE
  OFF->ON		Previous value FALSE, next TRUE	FALSE

4. Alarm Name

   Alarm names must be between 2 and 64 characters long, and each name must be unique without duplicates.

5. Severity

   Set the alarm severity as Low, Medium, High, or Critical.

6. Category

   Create custom alarm categories to organize and classify alarms as needed.

7. Message

   Customize the content displayed when an alarm is triggered, using built-in parameters:

   • {{.AlarmRuleName}} Displays the alarm name.
   • {{.TriggeredValue}} Displays the triggered value.
   • {{.TriggeredAt}} Displays the trigger time.
   • {{.TagName}} Displays the tag name.
   • {{.TagType}} Displays the tag data type.
   • {{.HWKey}} Displays the Hardware Key.

Copy Rules

On the Alarm page, you can copy alarm rules from other HMIs to the current HMI.

• Selecting Confirm to replace all rules will clear any existing alarm rules on the HMI.

Alarm History

On the Alarm History page, you can view and track past alarm events.

• Column Contents

  1. Trigger Time Used to analyze when the event occurred, helping identify if certain times are more prone to issues.
  2. Recovered Time Used to evaluate the speed and efficiency of system recovery.
  3. Acknowledged Time Tracks how quickly the alarm is responded to, ensuring issues are addressed promptly.
  4. Disconnected Time The time when the HMI or tag disconnects after an alarm is triggered. Once disconnected, the original alarm history will no longer show the recovered status.
  5. Message Provides detailed alarm information to help quickly identify problems.
  6. Status Indicates whether the alarm is still active or has been resolved.
  7. Alarm Name Identifies specific alarm rules.
  8. Tag Name Indicates the involved tag, facilitating further analysis.
  9. Data Type Shows the data type that triggered the alarm for appropriate handling.
  10. Operation Displays if the alarm has been manually operated.
  11. Reference Value Helps verify if the alarm condition matches expectations.
  12. Trigger Value Analyzes the specific data that caused the alarm.
  13. Recovery Value Checks if the recovery condition meets expectations.
  14. Severity Categorizes the importance of alarms, aiding in prioritizing urgent issues.
  15. Category Used for organizing alarms for easier searching and management.
  16. Ack By Tracks who handled the alarm, ensuring issues are followed up effectively.

• Acknowledge Alarm Select the alarms you want to acknowledge, then click the Acknowledge button to confirm the selected alarms.

• Using Alarm Display widget See Alarm Display Widget