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User's Manual
4.3
Powering fieldbus devices
Note
You can power a fieldbus device or segment by connecting it to an external power source or by
using the Fieldbus Device Configuration utility.
1. Launch the Fieldbus Device Configuration utility.
2. Click the USB Fieldbus Interface icon in the tree view.
3. Select the "Provide Power" check box.
Note
The USB Fieldbus Interface is only capable of providing an output current of up to 85 mA.
Typically, you should not attempt to connect more than three or four fieldbus devices on the
same segment.
Figure 4-3:
WARNING!
Providing power to a live (already powered) segment can disrupt communications and may
compromise automation safety.
24
Provide Power check box
June 2012
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