4

E3NW

Sensor Communications Unit

CompoNet

*1. Temperature Limitations Based on Number of Connected Amplifier Units:

Groups of 1 or 2 Amplifier Units: 0 to 55°C, Groups of 3 to 10 Amplifier Units: 0 to 50°C, Groups of 11 to 16 Amplifier Units: 0 to 45°C

*2. This is the total number of Sensors that can be connected to the Sensor Communications Unit and Distributed Sensor Units.

Communications Specifications

Item

Model

E3NW-CRT

Connectable Sensor Amplifier Units

N-Smart

Smart Fiber Amplifier Unit: E3NX-FA0

Smart Laser Amplifier Unit: E3NC-LA0

Smart Laser Amplifier Unit (CMOS type): E3NC-SA0

Power supply voltage

14 to 26.4 VDC

Power and current consumption

At 24 VDC

1.7 W max. (Not including the power supplied to Sensors.),

70 mA max. (Not including the current supplied to Sensors.)

Indicators

MS (Machine Status) indicator (green/red), NS (Network Status) indicator (green/red),

and SS (Sensor Status) indicator (green/red)

Vibration resistance (destruction)

10 to 60 Hz with a 0.7-mm double amplitude, 50 m/s2 at 60 to 150 Hz, for 1.5 hours

each in X, Y, and Z directions

Shock resistance (destruction)

150 m/s2 for 3 times each in X, Y, and Z directions

Ambient temperature range

Operating: 0 to 55°C;*1 Storage:

−30 to 70°C (with no icing or condensation)

Ambient humidity range

Operating and storage: 25% to 85% (with no condensation)

Maximum connectable Sensors*1

16*2

Maximum connectable Distributed Sensor

Units

8

Insulation resistance

20 M

Ω min. (at 500 VDC)

Dielectric strength

500 VAC at 50/60 Hz for 1 min

Mounting method

35-mm DIN track - mounting

Weight (packed state/Unit only)

Approx. 165 g/approx. 70 g

Materials

Polycarbonate

Accessories

Communications connector for E3NW-DS connection, DIN Track End Plates (2 pieces), and

instruction manual

Item

Specifications

Communications method

Dedicated protocol for CompoNet

Types of communications

Remote I/O communications (program-free, constant sharing of data) and message

communications (explicit message communications as required)

Baud rate

4 Mbps, 3 Mbps, 1.5 Mbps, 93.75 kbps

Modulation

Baseband method

Coding

Manchester code

Error control

Manchester encoding rules and CRC

Communications media

The following media can be used.

•Round Cable I

•Round Cable II

•Flat Cable I (DCA4-4F10 Standard Flat Cable)

•Flat Cable II (DCA5-4F10 Sheathed Flat Cable)

Note: Round Cable I, Round Cable II, Flat Cable I, and Flat Cable II cables are all treated as different types

of cables. When two or more types of cables are used in a single network, a Repeater Unit must be

used to separate any two different types of cables between the trunk line and a sub-trunk line.

Communications distance and wiring

Refer to 1-2-1 Cable Types, Maximum Distances, and Number of Slave Units in the CompoNet

Master Units Operation Manual

(Cat. No. W456).

Signal lines

Two lines: BDH (communications data high) and BDL (communications data low)

Power lines

Two lines: BS+ and BS

− (power for communications and internal Slave Unit circuits)

•Power is supplied from the Master Unit or Repeater Unit.

Connection forms

Round Cable II, Flat Cable I, or Flat Cable II at a baud rate of 93.75 kbps: No restrictions

Other cables or baud rates: Trunk line and branch lines

Connections for Slave Units and Repeater Units: T-branch or multidrop connections

Noise immunity

Conforms to IEC 61000-4-4, 1 kV or higher

Address setting method

Decimal rotary address switch

Address range

0 to 62