DeviceNet Network Installation Checklist

If you are setting up your DeviceNet network or it is not working properly go through the following checklist. It will fix your problem 95% of the time.

• Termination resistors. ( 1 at each end of trunk ).
• Grounding of Network. ( One location only ).
• Cumulative drop line budget in spec. for selected baud rate.
• Trunk as linear topology. No Star off of trunk > 20 feet ( 6 m ).
• Spacing guidelines from AC cables.
• No Drops > 20 feet (6 m).
• Trunkline budget in spec. for baud rate.
• Total Network Current Check ( DeviceNet Assistant )
• Common Mode Voltage Check at network ends, with full load.
• Voltage and Ohm readings of CAN wires within spec.

(This above notes were taken from the DeviceNet Book of Knowledge by Robert D. Law)

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