I saw this question and answer over in the Emerson Exchange LinkedIn group, and thought I'd add it here for everyone's benefit.
In Rosemount Transmitters ther is a Burst Mode option I am wondering in what application would I use this function. Could someone give me a briefing on "Burst Mode" and its application?
This answer was provided:
...here is an example of when "Burst Mode" would be required. If there is a multivariable field device and you want additional information from the field device but can only use an analog 4-20mA signal, the Rosemount Model 333 Triloop contains 3 additional D/A's thus providing 3 more 4-20mA analog signals. Along with the 4-20mA analog output from the field device, you are able to get 4 analog signals from measurements made by 1 multivariable field device. The 333 Triloop is passive. It does not actively poll the field device for the HART variables. For the 333 Triloop to receive HART data, you must enable "Burst Mode" and select the information you would like transmitted the field device, ie all HART variables + mA current output. Once "Burst Mode" is enabled, the field device will start transmitting digital HART data to the 333 Triloop. Depending on HART variable mapping in the field device, and the configuration of 333 Triloop channels, the 333 Triloop will use the HART data being "Burst" by the field device and generate additional 4-20mA signals. I hope this information helps understand when "Burst Mode" would be used.
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