Emerson Micro Motion 4200, Configuration And Use Manual

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Procedure
1. Select the burst message for which you will set up trigger mode.
2. Set
Trigger Mode to the type of trigger you want to use.
Option Description
Continuous The burst message is sent at
Default Update Rate
. The burst interval is not affected by
changes in process variables.
Falling • When the specified process variable is above Trigger Level , the burst message is sent
at Default Update Rate .
• When the specified process variable is below
Trigger Level
, the burst message is sent
at Update Rate .
Rising • When the specified process variable is below Trigger Level , the burst message is sent
at
Default Update Rate
.
• When the specified process variable is above Trigger Level , the burst message is sent
at Update Rate .
Windowed This option is used to communicate that the process variable is changing rapidly.
Trigger Level defines a deadband around the most recently broadcast value.
• If the process variable stays within this deadband, the burst message is sent at
Default Update Rate .
• If the process variable moves outside this deadband in either direction, the burst
message is sent at
Update Rate .
On Change • If any value in the burst message changes, the burst message is sent at
Update Rate
.
• If no values change, the burst message is sent at Default Update Rate .
3. Set Trigger Level to the value of the process variable at which the trigger will be activated.
4. Set
Default Update Rate
(or
Base Burst Rate
) to the burst interval to be used when the trigger is not
active.
5. Set Update Rate (or Triggered Burst Rate ) to the burst interval to be used when the trigger is active.
Configuration and Use Manual Configure digital communications
MMI-20048166 April 2019
Configuration and Use Manual 113