Overview
Event notification uses the burst message mechanism to indicate that an alert has occurred.
When event notification is enabled and one or more of the selected alerts occurs, each
active burst message will broadcast HART Command 119 until the condition is
acknowledged by a HART master.
Tip
Event notification affects only HART burst messages. Whether an alert is selected for event
notification or not, alert severity, alert status (active or inactive), fault timeout, and alert
acknowledgment operate as normal.
Restriction
This feature is available only with a HART 7 host.
Prerequisites
If you are using the Field Communicator, you must enable a burst message before you can
configure event notification.
Procedure
1. Enable event notification.
2. Select all desired alerts.
If one or more of the selected alerts occurs, each active burst message will broadcast
HART Command 119 until the alert is acknowledged by a HART master.
3. Set Trigger Interval as desired.
Trigger Interval controls the delay before HART Command 119 is broadcast.
• Default: 0 seconds
• Range: 0.5 to 3600 seconds
Trigger Interval begins when the transmitter detects the alert condition. When
Trigger Interval expires:
• If the alert is still active, HART Command 119 is broadcast.
• If the alert is not active, no message is broadcast.
Tip
If you set Trigger Interval to 0, HART Command 119 is broadcast as soon as the alert is
detected.
4. Set Retry Rate as desired.
Retry Rate controls the rate at which HART Command 119 is broadcast when event
notification is active.
• Default: 0.5 seconds
Integrate the meter with the control system
Configuration and Use Manual 113
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