Alarm conditions for PDI

Use the
Alarms
tab on the
PDI Properties
 dialog box to assign settings to all pre-defined alarms for the Process Discrete Input (PDI) instruction.
Define alarm conditions for Process Discrete Input (PDI) instructions
  1. On the instruction in the routine, perform one of these actions:
    • On the Ladder or FBD instruction, select .
    • In the Structured Text editor, right-click the tag name and select
      Configure <tag name>
      .
  2. Open the
    Alarms
     tab.
  3. Set the parameters:
    • Use
      . Use the check box to put the associated alarm in use. Alarm driving conditions are not evaluated when the alarm is not in use. The
      Use
       check box is synchronized with
      Use and evaluate alarm
       in the
      Alarm Properties
       window.
    • Alarm.
       Type the label to display for the associated alarm.
    • Alarm Edit button
      . Select to open the alarm properties editor for the corresponding alarm instance.
    • Apply following settings to all alarms
      . Select the check box to apply settings (Class, Alarm group, FactoryTalk View command) to all pre-defined alarms for the instruction. It is important to add information to all three settings when applying alarms. If one of the settings is empty, the settings are cleared in all alarms. When changes are applied, the settings and the check box are cleared.
    • Class
      . Use the class to group related alarms. The class applies to all alarms defined for the instruction including predefined and user-defined alarms. Use the class to only filter alarms that are displayed to the operator. The class is case-sensitive.
    • Alarm group
      . Assigns all pre-defined alarms for the instruction a group name to help classify and sort alarms.
    • FactoryTalk View command
      . A
      FactoryTalk View
       command that can be run on the operator station when the alarm notification appears. Enter the exact syntax for the
      FactoryTalk View
       command. The command applies to all pre-defined alarms for the instruction.
    • Allow operator to shelve alarm
      . Select to allow the operator to shelve alarms.
    • Allow maintenance to disable alarm
      . Select to allow maintenance to disable alarms.
  4. View the read-only parameters:
    • State
      . The state of the alarm. Hover over the state icon to see a tool tip that describes the alarm state or fault status.
      An alarm can be in more than one state at a time. For example, an alarm can be in alarm, acknowledged, and suppressed; or normal, unacknowledged, and suppressed.
      Alarm state icons include:
      • Normal, acknowledged (no icon).
      • Normal, unacknowledged - NormalAlarmUnacknowledged
      • In alarm, acknowledged - InAlarmAcknowledged
      • In alarm, unacknowledged - InAlarmUnacknowledged
      • Suppressed - AlarmSuppressed
      • Shelved - AlarmShelved
      • Disabled - Alarm Disabled icon
      • Alarm fault - AlarmFault
    • Device state
      . When the
      Logix Designer
       application is online with the controller, the indicator displays the current device state, such as Off, Pulse on, or Out of service.
    • Device issues.
       When the
      Logix Designer
       application is online with the controller, the indicator displays fault conditions, such as Feedback fault or I/O fault.
  5. Select
    Apply.
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