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June 2012
2
USB Fieldbus Interface
Topics covered in this chapter:
•
Overview
•
Parts and function
•
Power modes
2.1
Overview
The USB Fieldbus Interface enables two-way communication between a
computer and fieldbus devices. Its primary function is to allow the setup,
configuration, monitoring, and troubleshooting of fieldbus devices through a
computer.
The interface is fully compatible with all FOUNDATION fieldbus (FF) devices
and is always configured as a "visitor."
Features
Compliant with USB 1.1 and USB 2.0 specifications
Works with standard USB cables
Can detect a Link Active Scheduler (LAS) and will take over as LAS if it is not present on the
segment
Can be connected to any fieldbus segment containing a FOUNDATION fieldbus device
It is particularly useful in these plant scenarios:
•
Workbench setup and troubleshooting of fieldbus devices
•
With a laptop in the field to configure, commission, decommission, or
troubleshoot fieldbus devices
User's Manual
5
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