2.5 Communication modules
The Trex unit has two communication modules.
Device Communicator communication module
The Device Communicator communication module can connect to and communicate
with HART and FOUNDATION fieldbus devices on an externally-powered HART loop or
fieldbus segment. The Device Communicator communication module has unique
terminals for both HART and FOUNDATION fieldbus devices.
Figure 2-4: Device Communicator communication module
A. Connect to externally-powered FOUNDATION fieldbus devices.
B. Connect to externally-powered HART devices.
Device Communicator Plus communication module
The Device Communicator Plus communication module can connect to HART and
FOUNDATION fieldbus devices, measure current and voltage, and power a device.
AMS Trex Device Communicator overview User Guide
September 2021
14 User Guide
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