Chapter 6: DeviceNet
Figure 6-5. Internal CANPower OFF, Terminating Resistor ON
NOTE: When using the open-style terminating resistor, connect a 121 ohm, ¼
W resistor to CAN_H and CAN_L (between blue and white data-pair wires).
Figure 6-6. Example of a Terminating Resistor Installation on a DeviceNet Bus
Power Supply and the DeviceNet Bus
The DeviceNet network allows distribution of power supplies on the network cable system. Fol-
low these general rules to achieve safe and reliable operation:
l
Use power supplies rated at 24 V.
l
Minimize installation problems by using a single power supply with sufficient current
11069-000 Rev. H SmartController EX User's Guide 67
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