Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.
Omron NX-DA3203 — 4 Ch 4 20 mA Output Unit
SKU: NX-DA3203USD 190.00
NX-series 4-point analog current output, 4-20 mA, 1/8000 resolution, 250 us conversion, 1.80 W from NX bus, free-run refresh.
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Product Overview
The Omron NX-DA3203 is a 4-channel analog current-output unit for the NX-series modular I/O system. It is manufactured by Omron Corporation. Hengyixin Automation stocks this I/O expansion unit in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports. Specifications on this page were checked against Omron's NX-series I/O System brochure (R183).
250 us per-point digital-to-analog conversion time Free-run I/O refresh (250 us cycle) 1.80 W max NX-bus current consumption 4 channels, each 4-20 mA output (current sink)
Free-run I/O refresh (250 us cycle) 1.80 W max NX-bus current consumption
Free-run I/O refresh (250 us cycle) 1.80 W max NX-bus current consumption 250 us per-point digital-to-analog conversion time Free-run I/O refresh (250 us cycle)
Compatible controllers and sibling SKUs are listed in the related products row below.
Key Features
- 250 us per-point digital-to-analog conversion time
- Free-run I/O refresh (250 us cycle)
- 1.80 W max NX-bus current consumption
- 4 channels, each 4-20 mA output (current sink)
- SKU: NX-DA3203
- Series: NX-DA analog output unit
Best-Fit Applications
- Driving proportional hydraulic or pneumatic valves from an NX controller
- Strip-chart or paperless recorder signal feed at the panel end
- Process loop output on a packaging or batching machine skid
Buying Checklist
- Choose NX-DA2205 (high resolution) over the 4-channel DA3203 for low-channel applications.
- Choose NX-DA2603 or NX-DA3603 when voltage output (-10 to +10 V) is required.
- Choose NX-DA2205 for the high-resolution 2-channel 4-20 mA body when a 4-channel slot is not needed.
Technical Specifications
| Series | NX-DA analog output unit |
|---|---|
| Output Channels | 4 (current, independent) |
| Output Range | 4 to 20 mA |
| Resolution | 1/8000 full scale; setting value 0 to 8000 (0 to 100 % of full scale) |
| Overall Accuracy | +/- 0.3 percent FS at 25 degC |
| Conversion Time | 250 us per point |
| I/O Refresh | Free-run only |
| Load Resistance | 600 ohm max (at 24 VDC loop supply) |
| Terminal Block | Screwless push-in (captive screw terminal optional) |
| Current Draw | 1.80 W max from NX bus |
| Compatible Couplers | NX-ECC201 / ECC202 / ECC203 EtherCAT, NX-EIC202 to CJ |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for NX-DA3203
What is the difference between NX-DA3203 and NX-DA3205?
Both are 4-point 4-20 mA current-output units for the NX series. The NX-DA3203 is the standard-resolution model (1/8000, +/- 0.3 percent FS, 250 us conversion, free-run refresh). The NX-DA3205 is the high-resolution sibling (1/30000, +/- 0.1 percent FS, 10 us per-point conversion, with selectable synchronous or free-run refresh). For servo or tension control, use the DA3205; for general process loops, use the DA3203.
Does the NX-DA3203 need an external 24 VDC loop supply?
The unit drives the current on its own - no separate loop supply is needed for the output stage. The device that receives the 4-20 mA signal must be powered from somewhere, but that supply is on the receiving side. The NX-DA3203 itself draws 1.80 W from the NX bus; it does not pull from a 24 VDC rail.
Which NX coupler or CPU does the NX-DA3203 require?
Use an NX-series CPU (NX102 / NX502 / NX701 / NX1P2) with a built-in NX bus, or pair the unit with one of the standard NX couplers - NX-ECC201 for a standard EtherCAT topology, NX-ECC202 for redundant ring, or NX-ECC203 for the slide-in NX-CIF bus adapter. For a CJ-series PLC, use the NX-EIC202 I/O interface unit to bridge from the CJ rack to the NX-DA3203.
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