Alarms widget

Navigation bar > > Alarms>Widget

The Widget Tab provides a real-time view of all active and configured alarms.

Each alarm is represented as a card, showing its name, associated signal, state, and timestamp of the last change.

From this page, users can create new alarms, edit existing ones, or perform immediate actions such as acknowledge or reset.

  1. From the Accounts tab, click .

  2. Fill in the fields described below:

Element

Description
Alarm name The name identifying the alarm.
Enable alarm If disabled, the alarm will be skipped during signal evaluation.
Variable name clicking on Select variables the user can select the device and also the variables to be associated with the alarm
Alarm text Message displayed when the alarm is triggered. It will appear in the Events log.
Threshold 1* Threshold value number 1.
Threshold 2* Threshold value number 2.
Activation delay (seconds) Delay time before the alarm becomes active, to prevent false triggers.
Reset time (seconds) Time after a reset during which the signal is excluded from monitoring, before automatic reactivation.
  1. Click Save .

Note: During configuration, alarms remain in “evaluation” state until the first valid signal value is detected.

Threshold Parameters

Operational Logic:

  • When Threshold2 > Threshold1, the alarm is activated when the signal exceeds Threshold2 and returns to normal once it falls below Threshold1 (useful for detecting high-level conditions).

  • When Threshold1 > Threshold2, the alarm is activated when the signal drops below Threshold2 and returns to normal once it rises above Threshold1 (useful for detecting low-level conditions).

This dual-threshold mechanism provides hysteresis, avoiding false triggers caused by small oscillations near a single threshold value.

  1. Click Edit, on the alarm card.

  2. the user is redirected to the procedure described in Add a new alarm

  1. Click Save .

When an alarm is triggered, it changes its state, which is visually updated on the card. Users can act on the alarm by acknowledging or resetting it:

  • Acknowledge: Confirms that the user has seen the alarm; the card updates to the ACK state.

  • Reset: Clears the alarm condition and suspends its monitoring for the Reset Time before returning to normal operation.

The table below reports all the possible alarm states:

Element

Description

OFF

Disabled alarm, default state after reset.

ON

Active alarm, waiting for the acknowledgement.

WAS_ON

Alarm previously active and now waiting for acknowledgment.

ON_ACK

Alarm still active and already acknowledged.

WAS_ON_ACK

Alarm not active anymore and acknowledged.

RESET

Active reset even if inputs are OFF

(reset attivo, indipendentemente dalla condizione degli ingressi lo stato rimane equivalente a OFF).

Note: the alarm status updates automatically through real-time notifications. Each change (activation, acknowledgment, reset) is recorded in the Event Log.

  1. Click delete, , on the alarm card.

  2. Confirm the action when prompted.

Deleted alarms are permanently removed from the configuration and will no longer appear in the list or event log.

Each alarm card also displays additional information by clicking on it; it helps users understand the context and current condition of the alarm. These details provide a quick diagnostic view directly on the card, without the need to open the Event Log or History tabs.

Element

Description

Last Event Timestamp

Indicates the exact date and time of the most recent change in the alarm state (activation, acknowledgment, or reset).

Associated User

Displays the username of the person who last interacted with the alarm, such as acknowledging or resetting it.

Current Signal Value

Shows the latest measured value of the signal linked to the alarm, allowing the user to assess whether the triggering condition is still present.