Emerson Micro Motion 5700 Configuration And Use Manual page 152

Configure digital communications
June 2019
Configure HART event notification
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ProLink III Device Tools → Configuration → Communications → Communications (HART) → Event Notification
Field Communicator Configure → Manual Setup → HART → Event Notification
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.
Prerequisites
If you are using the Field Communicator, you must enable a burst message before you can configure event
notification.
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.
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 s 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
5. Set Maximum Update Time as desired.
Maximum Update Time controls the rate at which HART Command 119 is broadcast when event
notification is not active.
152
Configuration and Use Manual
Micro Motion 5700 Transmitters with Intrinsically Safe Outputs
MMI-20039472