Device connection wizard prompts Answer
Do you intend to provide power from the
Trex unit?
Yes
Are you providing power to a transmitter or
positioner?
Positioner
Change Polling Option? Tap Yes if the device is not at address zero.
Increase loop current? Tap Yes to increase the current from 4 mA to
another value, if the device did not initially
communicate.
Figure 3-17: Connect to an externally-powered HART positioner
A — Current source
Device connection wizard prompts Answer
Do you intend to provide power from the
Trex unit?
No
Leads are attached to:
Positioner
Change Polling Option? Tap Yes if the device is not at address zero.
Increase loop current? Tap Yes to increase the current from 4 mA to
another value, if the device did not initially
communicate.
Related information
HART communication terminals
Connect to an externally-powered HART device
Power and connect to a HART device
Internal resistors
User Guide Field Communicator application
September 2021
User Guide 75
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