Emerson AMS Trex Device Communicator - Connecting to HART Devices; HART Communication Terminals

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The option is an image.
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3.10 Connections to HART devices
The Trex unit can communicate with a device from the control room, on the bench, or any
wiring termination point in the loop. Review the HART wiring diagrams to ensure the Trex
unit is correctly connected to the device.
Note
The Trex unit acts as a secondary HART master on a HART loop.
Related information
Internal resistors
3.10.1 HART communication terminals
The Trex unit has communication terminals that enable it to communicate with a HART
device. Insert the lead set into the red and black terminals and connect to a HART device.
Note
The lead set must be used to communicate with a wired or wireless device.
Figure 3-9: HART communication terminals on the Device Communicator
communication module
A. Communicate with an externally-powered HART device
User Guide Field Communicator application
September 2021
User Guide 69
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