Procedure
1. Connect the lead set to the Trex unit and to the device.
2. Open the Field Communicator application.
3. If the Trex unit does not automatically connect to the device, tap HART.
4. Follow the prompts to connect to the device.
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.
• 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.
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.)
3.18 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.
Field Communicator application
User Guide 95
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