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Electrical installation
DeviceNet Connection
Connect DeviceNet to X3.
General cabling instructions
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Arrange the bus cables as far away from the motor cables as possible.
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Avoid parallel runs
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Use bushings at cable entries
Bus termination
Bus termination is required to prevent signal reflections from the bus cable ends. The DNP31 DeviceNet interface module is not
equipped with internal bus termination
The DeviceNet network should be terminated at both ends of the trunk cable with a 121 ohm,
¼ W, 1% Metal Film resistor. Connect this resistor between the two signal wires (CAN_H,
CAN_L) on the DeviceNet cable.
Setting the Communication Parameters
The DeviceNet interface module does not provide means to adjust the DeviceNet slave address and baud rate (incl. autobaud).
The DeviceNet slave address, baud rate and communication timeout can be set in the UMC100.3 and are copied to the
DeviceNet interface module during initial connection between UMC and DNP31. When changing communication parameters later
on perform a power cycle. The baudrate is set to 'autobaud' by default.
Network and Baudrates
The maximum length of trunk cable depends on the data rate and on the type of the cable used.
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DeviceNet Cables: YR-29790 (Thick DeviceNet Cable) or YR-29832 (Thin DeviceNet Cable)
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Maximum Bus Length: 1200 m
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Topology: Multi-drop
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Serial Communication Type: Asynchronous, half Duplex
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Transfer Rate: 125, 250 or 500 kbit/s
Issue: 09.2015
- 9 -
Data sheet DNP31.0
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