Method Description Setup
Polling The meter polls an external
device for temperature data.
This data will be available in
addition to the internal
temperature data.
a. Choose Menu > Configuration > Process Measurement >
Temperature.
b. Set External Temperature to On.
c. Choose Poll External Device.
d. Select Polled Variable 1 or Polled Variable 2.
e. Set Variable to External Temperature.
f. Set Polling Control to Poll as Primary or Poll as Secondary.
Option Description
Poll as Primary No other HART masters will be on the
network. The Field Communicator is
not a HART master.
Poll as Secondary Other HART masters will be on the
network. The Field Communicator is
not a HART master.
g. Set External Device Tag to the HART tag of the external
temperature device.
Digital
communications
A host writes temperature data
to the meter at appropriate
intervals. This data will be
available in addition to the
internal temperature data.
a. Choose Menu > Configuration > Process Measurement >
Temperature.
b. Set External Temperature to On.
c. Perform the necessary host programming and
communications setup to write temperature data to the
transmitter at appropriate intervals.
2. (A, B, C, and D tables only) Choose the method to be used to supply pressure data, and perform the
required setup.
Configure process measurement applications Configuration and Use Manual
April 2019 MMI-20048166
46 Micro Motion 4200 Transmitters
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