Power and connect to a FOUNDATION fieldbus deviceFigure 3-39:
To power a FOUNDATION fieldbus device, the Trex unit needs the FOUNDATION fieldbus Power Plug. When
the Trex unit powers a device, it also provides two terminators and a power conditioner.
WARNING!
The Trex unit can power only one FOUNDATION fieldbus device.
A. FOUNDATION fieldbus Power Plug
Connect to an externally-powered FOUNDATION fieldbus deviceFigure 3-40:
For small fieldbus segments, the power conditioner and terminators can be contained in a single wiring
block.
Note
You can connect the Trex unit at any convenient place along the fieldbus segment (bus). In the field, this is
typically done at the device or at the fieldbus junction box. The drawing below is one example.
A. Terminators
B. Power conditioner
C. Fieldbus power supply
D. Host system
Field Communicator application
User Guide 99
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