Network Communication Unit

NU series

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Specs Network Communication Unit NU series

Model

NU-EP1

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Name

EtherNet/IP™ Compatible Network Unit

Ethernet
Specifications

Compliant standards

IEEE802.3 (10BASE-T), IEEE802.3u (100BASE-TX), IEEE802.3af (c, Class 3)

Transmission rate

10 Mbps (10BASE-T), 100 Mbps (100BASE-TX)

Transmission media

STP cable or Category 3 or higher UTP cable (10BASE-T)*1
STP cable or Category 5 or higher UTP cable (100BASE-TX)

Maximum cable length

100 m (distance between the unit and Ethernet switch)

EtherNet
Specifications

Max. number of connection stages

4 (10BASE-T) 2 (100BASE-TX)*2

EtherNet/IP™

Compliant functions

Cyclic communication
Compatible with UCMM and Class 3 messaging (Explicit messaging)

Number of connections

64

RPI (Transmission cycle)

0.5 to 10,000 ms (in units of 0.5 ms)

Tolerable communication bandwidth for cyclic communication

6,000 pps

Message communication

Supports UCMM, Class 3

Conformance test

Compatible with Version A7

Sensor connection

Connectable sensors

Sensor amplifi ers with N-bus support*3

Number of connectable units

Up to 16 units*4

Power supply

Power is supplied from the unit via a sensor amplifi er connection connector.

Allowable passing current

Total 1,200 mA or less*5

Power during PoE power receiving

Supply voltage: 24 V ±10 %, supply current: 360 mA or less*6*7

Indicator lamp

Link/activity indicator (LINK/ACT): green LED, module status indicator (MS): 2-color (green and red) LED, network status indicator (NS): 2-color (green and red) LED, sensor communication indicator (N-bus): 2-color (green and red) LED

Power voltage

24 VDC ±10 %, ripple (P-P) 10 % or less (with power supply connector)
48 VDC (Max. 57 VDC) (During PoE power receiving)

Power consumption

1,500 mW or less (60 mA max. at 24 V)*8

Environmental resistance

Pollution degree

2

Ambient temperature

-20 to +55 °C (No freezing)

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions

Material

Main unit case and dust cover: polycarbonate, power supply connector: polyamide (plug), PBT (socket)

Accessories

Instruction manual, power connector, 2 end units

Weight

Approx. 80 g (including connectors)

*1 When using the power PoE power receiving function, use the STP cable or Category 5 or higher UTP cable. 2. The number of connectable units is not limited when using a switch.
*2 When using the switch, there is no limit on the number of units that can be connected.
*3 "N-bus" is the name of KEYENCE's wiring-saving system for sensor amplifi ers.
*4 Depends on the sensor amplifi ers connected. 5. Value for the current which can be supplied to this unit or to a sensor amplifi er unit connected to this unit.
*5 This is the current that can be supplied to the main unit or to the sensor amplifier connected to the main unit.
*6 Varies according to the working ambient temperature. (-20 to 45 °C: 360 mA or less, 45 to 50 °C: 260 mA or less, 50 to 55 °C: 140 mA or less)
*7 Power which can be supplied to the sensor amplifi er when using the PoE power receiving function. 7
*8 Current to be supplied to the connected sensor amplifi er is not included.

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Model

NU-EC1

Image

Name

EtherCAT Compatible Network Unit

Ethernet
Specifications

Compliant standards

IEEE802.3u (100BASE-TX)

Transmission rate

100Mbps (100BASE-TX)

Transmission media

Category 5e STP

Distance between nodes

100 m

Communication ports

RJ-45x2

EtherCAT
communication
specifications

Compatible functions

Process data object communication (cyclic communication)
Mailbox communication (message communication) CoE compatible

Sensor connection

Connectable sensors

Sensor amplifi ers with N-bus support *1

Number of connectable units

Up to 16 units *2

Power supply

Power is supplied from the unit via a wiring-saving connector

Allowable passing current

Total 1200 mA max.

Indicator lamp

Power indicator (PWR): green LED,
RUN indicator (RUN): green LED,
ERR indicator (ERR): red LED,
sensor communication indicator (N-bus): 2-color (green and red) LED,
link/activity indicator: green LED

Power voltage

24 VDC ± 10%, ripple (P-P) 10% or less

Power consumption

1700 mW or less (70 mA max. at 24 V) *3

Environmental resistance

Pollution degree

2

Ambient temperature

-20 to +55 °C (No freezing)

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions

Material

Main unit case and dust cover: polycarbonate,
power supply connection connector: polyamide (plug), PBT (socket)

Accessories

Instruction manual, power connector, 2 end units

Weight

Approx. 80 g (including connectors)

*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 Current to be supplied to the connected sensor amplifi er is not included.

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Model

NU-DN1

Image

Number of connectable sensors

16 units max. *1

Sensor connection

Connectable sensors

Sensor amplifi ers with N-bus support *2

Number of connectable units

Up to 16 units *1

Allowable passing current

Total 1200 mA max.

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

Accessories

Instruction manual, DeviceNet® connector, End unit

Weight

Approx. 65 g (including connectors)

*1 Depends on the sensor amplifi ers connected.
*2 “N-bus” is the name of KEYENCE's wiring-saving system for sensor amplifi ers.
*3 Power to the NU-DN1 is supplied from the DeviceNet® 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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Model

NU-CL1

Image

Number of connectable sensors

16 units max. *1

Sensor connection

Connectable sensors

Sensor amplifi ers with N-bus support *2

Number of connectable units

Up to 16 units *1

Power supply

Power is supplied from the unit via a wiring-saving connector

Allowable passing current

Total 1200 mA max.

CC-Link specifications

Supported version

Ver.2.00/Ver.1.10 (switchable)

Station type

Remote device station

No. of occupied stations

Ver.2.00: 3 stations; Ver.1.10: 1/2/3/4 stations (switchable)

Transmission speed

156kbps/625kbps/2.5Mbps/5Mbps/10Mbps

Station number settings

1 to 64

Power voltage

24 VDC ± 10%, ripple (P-P) 10% or less

Power consumption

1400 mW or less (at 24 V, 55 mA max.) *3

Accessories

Instruction manual, CC-Link connector, power connector, termination resistor, end unit × 2

Weight

Approx. 80 g (including connectors)

*1 Depends on the sensor amplifi ers connected.
*2 “N-bus” is the name of KEYENCE's wiring-saving system for sensor amplifi ers.
*3 Exclusive of the current supplied to the sensors connected.

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Model

NU-EN8N

Image

I/O

Connector

e-CON connector (4-pin)

Inputs

8

Supply voltage for equipment

Supplied via the NU-EN8N from the connected communication unit

Supply current

520 mA or less (total for eight ports)

Input signal

NPN open collector output, contact output

Input response time

20 µs or less

Internal input voltage

8 VDC (Reference value of input current: 3.1 mA)

Minimum ON voltage

6 V

Maximum OFF current

0.9 mA

Input resistance

2.4 kΩ

Connectable communication units

CC-Link Compatible Communication Unit: NU-CL1, DeviceNet® Compatible Communication Unit: NU-DN1, EtherCAT® Compatible Network Unit: NU-EC1, EtherNet/IP™ Compatible Network Unit: NU-EP1

Number of connectable sensors

2 units max. (occupied ID numbers: 8) *1

Sensor connection

Number of connectable units

Power voltage

12 to 24 VDC ±10%; ripple (P-P) 10% or less *2

Accessories

Instruction manual, Tag, Index seal

Weight

Approx. 55 g (including tag)

*1 The NU-EN8N occupies eight ID numbers of the communication unit regardless of the number of input devices connected.
*2 Power to the NU-EN8N is supplied from the connected communication unit.

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