Wiring Diagrams For Foundation Fieldbus Devices And The Field Communicator Application - Emerson AMS Trex User Manual

Field Communicator application
Figure 3-38:
A.
B.
Related information
3.18.3 Wiring diagrams for FOUNDATION fieldbus devices and
the Field Communicator application
CAUTION!
Remove the USB cable from the Trex unit before connecting to a device.
CAUTION!
The Trex unit draws approximately 12 mA from the fieldbus segment when it is online. (The
Trex unit draws 0 mA when it is offline.) Ensure the power supply or barrier on the fieldbus
segment has the capacity to provide this additional current when the Trex unit is online. If a
heavily loaded fieldbus segment is drawing near the capacity of the segment's power supply,
connecting the Trex unit may result in loss of communication.
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FOUNDATION fieldbus terminals on the Device Communicator Plus
communication module
FF pwr terminal provides power, power conditioning, and two terminators to one FOUNDATION
fieldbus device. Use the FOUNDATION fieldbus Power Plug to connect this terminal to the red FF
terminal.
FF terminals to communicate with a FOUNDATION fieldbus device
Wiring diagrams for FOUNDATION fieldbus devices and the Field Communicator
application
User Guide