The Omron NX-MD6121-6 Machine Automation Controller Digital I/O Unit combines 16 NPN/PNP-compatible digital inputs with 16 NPN outputs for integrated machine signal control. It supports Switching Synchronous and Free-Run I/O refreshing for flexible processing of field-level input and output signals. Output response is 0.1 ms ON and 0.8 ms OFF, while input response ranges from 20 μs to 400 μs for high-speed signal detection. The module operates from a 24 VDC supply with power consumption of 5.80 W. The NX-MD6121-6 combines digital input monitoring with NPN output switching and belongs to the PLC input and output range supporting Omron machine automation.
Switching Synchronous I/O refreshing and Free-Run refreshing
ON/OFF response time
Outputs: 0.1 ms max./ 0.8 ms max. Inputs: 20 μs max./ 400 μs max.
Dimensions (mm)
72 × 100 × 90 mm (W×H×D)
Power supply voltage
24 VDC (20.4 to 28.8 VDC)
Unit power consumption
5.80 W max.
Shock resistance
Conforms to IEC 60068-2-27. 147 m/s2, 3 times in X, Y, and Z directions
Vibration resistance
Conforms to IEC 60068-2-6. 5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz, acceleration of 9.8 m/s2, 100 min each in X, Y, and Z directions (10 sweeps of 10 min each = 100 min total).
Noise immunity
2 kV on power supply line (Conforms to IEC 61000-4-4.)
