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Communications Unit


Connects to a Total Maximum of Eight Digital I/O, Analog I/O, and Relay Output Units Compatible with MULTIPLE I/O TERMINAL.

General Specifications

Communications power supply voltage 11 to 25 VDC (supplied from the communications connector)
Internal power supply voltage 20.4 to 26.4 VDC (24 VDC +10%/-15%)
I/O power supply voltage
Current consumption Communications: 30 mA max.
Internal circuit: 0.6 A at 24 VDC (with max. I/O load)
Dielectric strength 500 VAC
Noise immunity Conforms to IEC61000-4-4, 2 kV (Power line)
Vibration resistance 10 to 150 Hz, 1.0-mm double amplitude or 70 m/s2
Shock resistance 200 m/s2
Mounting strength No damage when 100 N pull load was applied in all directions (10 N min. in the DIN track direction)
Terminal strength No damage when 100 N pull load was applied
Screw tightening torque 0.3 to 0.5 Nm
Phoenix connector: 0.25 to 0.3 Nm
Ambient operating temperature -10°C to 55°C (with no icing or condensation)
Ambient operating humidity 25% to 85%
Ambient storage temperature -25°C to 65°C (with no icing or condensation)
Accessories End connector (one)


Connectable Units 8
Unit I/O points 1,024 max. (including inputs and outputs)
Communications distance Total extension 3 m max.
Between Units 1 m max. (40 mm max. with the standard cable provided with the Unit) *
Dielectric strength 500 VAC for 1 min.
Mounting method DIN 35 mm-track mounting
Unit output power supply 0.4 A max. (see Note .)

* One cable is provided with each I/O Unit.
Note: The total current consumption for I/O Unit interfaces must not exceed 0.4 A.