Network Communication UnitNU series


Communication Unit DeviceNet™ Compatible


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Sensor connection

Connectable sensors

Sensor amplifi ers with N-bus support *1

Number of connectable units

Up to 16 units *2

Allowable passing current

Total 1200 mA max.

Number of connectable units

16 units max. *2

DeviceNet™ specifi cations

Compliant functions

I/O Message (polling), Explicit Message

Address setting

0 to 63 (PGM compatible)

Baud rate (automatically switched)

500 kbps, 250 kbps, 125 kbps

Maximum cable length

500 kbps

thick cable

100 m

thin cable

250 kbps

thick cable

250 m

thin cable

100 m

125 kbps

thick cable

500 m

thin cable

100 m


Power voltage

11 to 25 VDC *3

Power consumption

1480 mW or less (at 24 V, 60 mA max.) *4


Instruction manual, DeviceNetTM connector, End unit


Approx. 65 g (including connectors)


Main unit case and dust cover: Polycarbonate, DeviceNetTM connector: Polyamide (plug), PBT (socket)

*1 “N-bus” is the name of KEYENCE's wiring-saving system for sensor amplifi ers.
*2 Depends on the sensor amplifi ers connected.
*3 Power to the NU-DN1 is supplied from the DeviceNetTM communication power supply. The same power is also supplied to all sensor amplifi ers connected, via the NU-DN1.
*4 Exclusive of the current supplied to the sensors connected.

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