Section 3 Installation
Configuring Network Power
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Configuring Network Power
DeviceNet provides power supply in addition to providing communication. As both
power and signal conductors are contained in the cable, devices can draw power
directly from the network or from the DeviceNet bus. DeviceNet has a single supply
electric current capability of up to 16 amps depending on the selection of cable.
The maximum electric current for cable types is listed in the appropriate cable
specifications in
on page 21. Smaller gauge cables provide a
cost-effective means of designing a highly functional, flexible, low electric current
cable system.
The following are the power bus capabilities of DeviceNet:
•
Cable length upto 500 m (1,640 ft).
•
Support for as many as 64 nodes of varying electric current.
•
Adjustable configuration.
The flexibility of DeviceNet provides various power design choices. This section
provides guidelines for configuring power along a network, which increases
performance and decreases cost.
Figure 21. DeviceNet Ground Isolation
Power Tap
Power Supply
Earth Ground
