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Alarms & Audit-Trail Tutorial teaches you to:

  • Create alarm groups and items
  • Configure alarm conditions
  • Set up notifications
  • Enable audit trail for FDA 21 CFR Part 11 compliance

Prerequisites:

In this page:

→ Tutorial | Concept | How-to Guide | Reference

Create Alarm Groups

  1. Navigate to Alarms → Groups
  2. Edit the groups:
CriticalWarning
  • Priority: 1
  • Acknowledgment: Required
  • Priority: 3
  • Acknowledgment: not required 


Define Alarm Items

  1. Go to Alarms → Items
  2. Create alarms:
High TemperatureLow Level
  • Tag: Tank1_Temperature
  • Group: Critical
  • Condition: Greater than
  • Limit: 85
  • Message: Tank 1 temperature exceeds limit
  • Tag: Tank1_Level
  • Group: Warning
  • Condition: Less than
  • Limit: 10
  • Message: Tank 1 level low

Configure Deviation Alarms

For rate-of-change monitoring:

  • Name: Pressure_Deviation
  • Type: Deviation
  • Tag: Line_Pressure
  • Setpoint Tag: Pressure_Setpoint
  • Deviation: ±10
  • Time: 60 seconds

Configure Audit Trail

  1. Go to Alarms → Audit Trail
  2. Enable logging:
    • Login/Logout: Yes
    • Tag Changes: Yes
    • Alarm Acknowledgments: Yes
    • Configuration Changes: Yes
  3. Set storage:
    • Database: SQL Server
    • Table: AuditTrail
    • Retention: 365 days

    • Alarm Summary Display

      Create operator display:

      1. Displays → New
      2. Add AlarmViewer control
      3. Configure:
        • Show: Active alarms
        • Columns: Time, Area, Message, Value
        • Filter: By area or priority
        • Allow: Acknowledge, silence

Test Alarms

  1. Start Runtime
  2. Open Alarms → Online
  3. Force tag values to trigger alarms
  4. Verify:
    • Alarm appears in list
    • Color coding correct
    • Sound plays
    • Email sent
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