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Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.

Omron NX-ID4342 — front face of the 12 mm-wide NX digital input unit showing the green TS / 0-7 input-status LED column, the row of 16 screwless push-in input terminals with white marker strips and the NX-ID4342 type label at the lower-right

Omron NX-ID4342 — 8-Point NPN DC Input, 12 mm

SKU: NX-ID4342

USD 52.00

Omron NX-ID4342 NX digital input, 8 points, NPN, 24 VDC, screwless push-in, 12 mm wide. In stock, China shipping.

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Product Overview

The Omron NX-ID4342 is an 8-point NPN DC input unit from the NX-series I/O family, manufactured by Omron Corporation. Hengyixin Automation stocks this controller 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).

The unit scans 8 inputs at 24 VDC (15 to 28.8 VDC permitted) with 3.5 mA typical input current per point. ON threshold is 15 VDC at 3 mA minimum; OFF threshold is 5 VDC at 1 mA maximum. ON / OFF response time is 20 microseconds max / 400 microseconds max. I/O refreshing is selectable between Synchronous I/O and Free-Run on the host coupler.

The 12 mm wide housing uses a 16-point screwless clamping terminal block and weighs 90 g. Power is drawn from the NX bus; the IOG terminal is rated 0.1 A per terminal. The NX-ID4442 is the matching PNP version; the NX-ID5342 is the 16-point NPN on the same 12 mm body. Programming is in Sysmac Studio.

Key Features

  • NX-series DC input unit, 8 points, NPN internal I/O common, 24 VDC rated (15 to 28.8 VDC permitted)
  • 20 us / 400 us ON / OFF response, selectable Synchronous I/O or Free-Run refreshing, programmable input filter
  • Screwless clamping terminal block, 16 terminals, 12 (W) x 100 (H) x 71 (D) mm, 90 g, IP20
  • Photocoupler isolation, 510 VAC dielectric strength, power drawn from NX bus, no I/O supply current draw
  • SKU: NX-ID4342
  • Series: Omron NX-series digital I/O unit (NX-ID)
  • Voltage: 24 VDC

Best-Fit Applications

  • Sensor aggregator on a high-speed filling line where 8 PNP-style retro-reflective sensors feed an NPN input unit on an NX102 CPU with synchronous I/O refreshing
  • Spare replacement on a packaging machine where the existing NX-ID4442 PNP board needs an NPN sibling for a new photo-eye bank at the infeed conveyor
  • Discrete I/O expansion on an NX1P2 cell that needs 8 sink cells per NX unit for prox switches on a rotary index table

Buying Checklist

  • Pick the NX-ID4342 for an 8-point NPN DC input unit on a 12 mm wide NX housing with 20 us ON response.
  • Pick the NX-ID4442 instead when the wiring is PNP sourcing from 24 VDC sensors with the same 8-point count and 12 mm body.
  • Pick the NX-ID3417 instead when only 4 PNP inputs are needed and the cabinet has tighter spacing constraints on the NX bus.

Technical Specifications

Manufacturer Omron Corporation (Japan)
Series Omron NX-series digital I/O unit (NX-ID)
Model / SKU NX-ID4342
Function DC input unit, 8 points
Internal I/O Common NPN
Rated Input Voltage 24 VDC (15 to 28.8 VDC permitted)
Input Current 3.5 mA typical at 24 VDC
ON / OFF Threshold ON 15 VDC min / 3 mA min, OFF 5 VDC max / 1 mA max
ON / OFF Response 20 us max ON / 400 us max OFF
I/O Refreshing Selectable Synchronous I/O refreshing or Free-Run refreshing
Connection / Isolation Screwless clamping terminal block, 16 terminals, photocoupler isolation, 510 VAC dielectric
Environment / Mounting 12 (W) x 100 (H) x 71 (D) mm, 90 g, IP20, 0 to 55 C, 10 to 95% RH non-condensing, free from corrosive gases

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-ID4342

What is the Omron NX-ID4342 used for?
It is an 8-point NPN DC input unit for the NX-series I/O bus. The unit reads 24 VDC sink signals from sensors or switches and reports them to the host NX102 / NX1P2 CPU or NX-ECC EtherCAT coupler at 20 us ON response.
NX-ID4342 vs NX-ID4442 - what is the difference?
The NX-ID4342 is the NPN version. The NX-ID4442 is the PNP version with the same 8-point count, same 12 mm housing, same 20 us response. Pick the 4342 for sensors that pull to 0 V and the 4442 for sensors that source 24 VDC.
Does the NX-ID4342 need an external I/O power supply?
No. The unit draws all of its operating current from the NX bus and consumes no current from the I/O power supply terminal. The IOG terminal still serves as the 0 V reference for the input field wiring.
How fast is the NX-ID4342 input response?
20 microseconds max ON and 400 microseconds max OFF. The 400 us OFF time can be lengthened by selecting a longer input filter in Sysmac Studio (0.25, 0.5, 1, 2, 4, 8, 16, 32, 64, 128 or 256 ms).
Can the NX-ID4342 be used on an EtherCAT coupler?
Yes. The unit mounts on any NX-ECC201 / NX-ECC202 / NX-ECC203 EtherCAT coupler or any NX102 / NX1P2 CPU. On a coupler, installation in 6 orientations is supported; on a CPU only upright installation is permitted.

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