Omron NX-AD3203 Analog Input Unit 2-Channel for NX Series
SKU: NX-AD3203USD 145.00
Omron NX-AD3203 is a 2-channel analog input unit for NX series EtherCAT I/O systems, accepting voltage and current inputs.
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Product Overview
The NX-AD3203 fits industrial control projects that require dependable logic execution, maintainable programming workflows, and architecture growth over the equipment lifecycle. It supports standardized automation design across machine families while preserving serviceability in production environments.
Deterministic Logic and Sequence Control
This controller class supports predictable scan-driven execution for interlocks, sequencing, alarms, and coordinated device handling. Deterministic behavior is essential for consistent machine output and repeatable cycle performance.
Platform Reuse Across Equipment Variants
Standardizing on a proven PLC/controller family enables software reuse, reduced engineering lead time, and easier support across multiple machine models or production lines.
Lifecycle Service and Maintainability
A maintainable control architecture with documented I/O mapping, diagnostics, and modular expansion strategy reduces troubleshooting time and improves long-term ownership value.
Key Features
- Input Channels: 2 channels
- Input Types: Voltage: 0-10V, ±10V; Current: 0-20mA, 4-20mA
- Resolution: 1/32000
- Accuracy: ±0.1% full scale
- Conversion Time: 1ms per channel
- Input Impedance: 1MΩ (voltage), 250Ω (current)
- SKU: NX-AD3203
- Series: NX
- I/O: 2 I/O
Best-Fit Applications
- Executes deterministic control logic
- Coordinates multi-device machine behavior
- Supports reusable software structures
- Improves fault diagnostics and recovery time
- Enables modular feature growth over time
- Standardizes control strategy across equipment
Buying Checklist
- Strong fit for scalable machine control
- Maintains deterministic automation behavior
- Supports long-term maintainability
- Good platform standardization candidate
- Reliable industrial controller ecosystem
Technical Specifications
| Model | NX-AD3203 |
|---|---|
| Series | NX |
| Type | Analog Input Unit |
| Input Channels | 2 channels |
| Input Types | Voltage: 0-10V, ±10V; Current: 0-20mA, 4-20mA |
| Resolution | 1/32000 |
| Accuracy | ±0.1% full scale |
| Conversion Time | 1ms per channel |
| Input Impedance | 1MΩ (voltage), 250Ω (current) |
| Isolation | Channel-to-channel isolated |
| Connection | Push-in terminals |
| Current Consumption | 50mA at 5VDC |
| Operating Temperature | 0 to +55°C |
| Mounting | DIN rail |
Resources & Downloads
FAQ for NX-AD3203
What sensors can I connect to this analog input?
Voltage output: pressure transmitters (0-10V), temperature transmitters. Current loop: 4-20mA pressure, flow, level transmitters. Universal input suits most industrial sensors.
How do I wire 4-20mA current input?
Connect sensor + to input +, sensor - to input -. Unit provides 250Ω internal shunt. For external shunt or powered sensors, follow wiring diagram.
What's the resolution in engineering units?
For 0-10V: 10V/32000 = 0.31mV per count. For 4-20mA: 16mA/32000 = 0.5μA per count. Scale in controller to engineering units.
Can I use this for thermocouple input?
No, NX-AD3203 is for voltage/current only. For thermocouples, use NX-TC temperature input units with cold junction compensation.
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