Emerson AMS Trex Device Communicator User Manual page 99

User Guide
3.18
3.18.1
User Guide
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5. Tap Yes when prompted if you want to change the polling option.
6. Select a polling option at the top of the screen.
Option Description
Address
Poll for devices at the specified addresses.
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Tag Poll by the tag of the device.
Long Tag Poll by the long tag of the device. (Only supported in HART Universal
Revision 6 or higher devices.)
Connections to FOUNDATION fieldbus devices
Connect the Trex unit to the device by using the lead set and the appropriate terminals. An
error message appears if the lead set is connected incorrectly. Digital communication is
susceptible to electrical noise; follow proper wiring instructions.
Note
Dynamic variables shown while online represent the digital data being sent from the
device.
Precautions for using the Trex unit with FOUNDATION
fieldbus devices
WARNING
If a fieldbus segment is connected to a host system, the changes made with the Trex unit
may not be recorded in the host system's permanent database. Verify the changes in the
database. Otherwise, this could cause unpredictable results and, depending upon your
application, process disruption leading to property damage, serious injury, or death.
Ensure all safety precautions and work procedures have been followed.
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Address 0 : Poll non multi-dropped loops. This is the default option.
Address Range 0 to 15 : Poll HART Universal Revision 5 or earlier
devices on multi-dropped loops.
Address Range 0 to 63 : Poll HART Universal Revision 6 or newer
devices on multi-dropped loops.
Address 63 (wireless adapter) : Poll the default address for
WirelessHART adapters.
Address 0 and 63 (wireless adapter) : Poll address 0 and the
default address for WirelessHART adapters.
Custom : Poll a unique or non-consecutive group of addresses
(example: "0, 5-7, 12"). Use a hyphen to specify consecutive
addresses and/or a comma to separate numbers or groups of
numbers.
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Field Communicator application
September 2021
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