DLD50T8N / DLD50T8P — 50 m Measuring LiDAR with Discrete I/O + Ethernet

Name: DLD50T8N / DLD50T8P — 50 m Measuring LiDAR with Discrete I/O + Ethernet
Brand: DAIDISIKE
SKU: dld50t8n-dld50t8p-50-m-measuring-lidar-with-discrete-i-o-ethernet
Availability: InStock

A 50 m TOF lidar with Ethernet point-cloud data and hard-wired NPN/PNP discrete output from one sensor.

DLD50T8N / DLD50T8P — 50 m Measuring LiDAR with Discrete I/O + Ethernet - product photo

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Technical Specifications

Model	DLD50T8N / DLD50T8P
Output	DLD50T8N: NPN discrete I/O + Ethernet 100BASE-TX; DLD50T8P: PNP discrete I/O + Ethernet 100BASE-TX
Detection Range	50 m @ 90% remission / 20 m @ 10% remission
Accuracy	±30 mm
Scanning Angle	280°
Scan Frequency	DLD50T8N: 50 Hz; DLD50T8P: 100 Hz
Angular Resolution	DLD50T8N: 0.08° / 0.16° / 0.32°; DLD50T8P: 0.32°
Operating Voltage	9-36 V DC
Laser	Class 1
Protection Rating	IP67
Dimensions	60 × 60 × 80 mm
Weight	250 g

Overview

DLD50T8N/P is a 2D single-line time-of-flight (TOF) scanning lidar covering a 280° field of view out to 50 m (at 90% remission) or 20 m (at 10% remission, i.e. dark/low-reflectivity targets), with ±30 mm accuracy. It is built for OEMs and system integrators who need a scanning lidar that delivers both raw measurement data over Ethernet and simple hard-wired switching signals, without adding a second sensor for the discrete-output side.

It is available in two output variants: DLD50T8N (NPN discrete I/O + 100BASE-TX Ethernet, 50 Hz scan frequency, selectable angular resolution of 0.08°/0.16°/0.32°) and DLD50T8P (PNP discrete I/O + 100BASE-TX Ethernet, 100 Hz scan frequency, 0.32° angular resolution). Both variants operate on 9-36 V DC, are IP67 rated, use a Class 1 laser, and measure 60×60×80 mm at 250 g.

Features & Benefits

Hybrid output: Ethernet scan data plus hard-wired discrete outputs in one scanner

Navigation or monitoring software can pull point-cloud data over 100BASE-TX Ethernet while the same unit's NPN/PNP discrete output drives a direct hard-wired signal to a PLC or interlock circuit. This removes the need for a separate dedicated I/O sensor.

NPN and PNP variants for sinking or sourcing control systems

DLD50T8N provides NPN (sinking) discrete output; DLD50T8P provides PNP (sourcing) discrete output. Integrators can match the unit to their existing wiring convention without adding an interposing relay.

Dual-rated 50 m / 20 m range specified for real-world dark targets

Range is stated as 50 m at 90% remission and 20 m at 10% remission, with ±30 mm accuracy. This gives integrators a realistic worst-case (dark, low-reflectivity target) distance to design around, rather than only a best-case white-panel figure.

280° wide-angle coverage with model-specific scan speed/resolution trade-off

Both variants scan a 280° field of view. The N-model runs at 50 Hz with selectable 0.08°/0.16°/0.32° angular resolution for higher point-density mapping; the P-model runs at 100 Hz with fixed 0.32° resolution for faster refresh in dynamic monitoring.

IP67 sealing and 9-36 V DC wide-range supply for outdoor and vehicle-mounted use

The housing is rated IP67 and accepts 9-36 V DC input, matching common battery-powered mobile equipment and unregulated outdoor supply conditions.

Class 1 eye-safe laser in a compact housing

The laser is Class 1, eye-safe under normal operating conditions per the applicable laser classification. The unit measures 60×60×80 mm at 250 g, allowing mounting in space- and weight-constrained equipment.

Applications

AGV/AMR navigation with combined obstacle-stop signal — Ethernet output feeds SLAM/navigation software with point-cloud data while the discrete output can drive a direct stop/slow-down signal to the vehicle's control circuit, without waiting on network-stack processing latency for the interlock path.

Large mobile machinery collision zone monitoring — For stackers, RTG cranes and gantry systems, the 50 m/20 m dual-rated range and 280° coverage suit the long detection distances and wide sweep needed around large slow-moving equipment; discrete output allows direct hard-wired slow-down/stop triggering.

Perimeter and zone monitoring with direct switching output — The NPN/PNP discrete output lets the lidar plug into control systems built around simple switching-sensor inputs, without requiring the panel to be re-engineered for Ethernet/fieldbus data.

Mobile robot fleets needing mapping data and a simple I/O signal — A single sensor supplying both channels reduces sensor count, wiring, and mounting points versus running a separate mapping lidar and a separate discrete-output proximity sensor.

Outdoor equipment on unregulated/vehicle DC power in wet or dusty conditions — IP67 sealing and 9-36 V DC input tolerance suit outdoor and vehicle electrical environments without additional enclosure or power conditioning.

Retrofitting legacy PLC-based machines with lidar ranging — The discrete output lets the lidar integrate into ladder-logic-based control without a network/fieldbus retrofit, while Ethernet remains available for future data-driven upgrades.

Models & Ordering Information

DLD50T8 50 m Measuring LiDAR with Discrete I/O

DLD50T8NDLD50T8P

DLD50T8N: NPN discrete I/O + 100BASE-TX Ethernet, 50 Hz scan frequency, selectable 0.08°/0.16°/0.32° angular resolution. DLD50T8P: PNP discrete I/O + 100BASE-TX Ethernet, 100 Hz scan frequency, 0.32° angular resolution.

Same device, other model code

DLD-50DHDLD-50DCDLD-50DP

DLD50T8N / DLD50T8P is the same device as the DLD-50D series, sold under a different model code. The DLD-50D page covers the Ethernet-only variants. See /products/lidar/dld-50d-2d-tof-lidar-for-navigation-and-mapping/.

How to Select

Choose DLD50T8N for NPN (sinking) control-system wiring, or DLD50T8P for PNP (sourcing) wiring; both include 100BASE-TX Ethernet for data output.
Choose DLD50T8N when finer angular resolution (selectable down to 0.08° at 50 Hz) is needed for detailed measurement or mapping density.
Choose DLD50T8P when a faster 100 Hz refresh rate is the priority for tracking moving objects or fast-changing scenes.
Design the working detection distance around the 20 m (10% remission) rating if target surfaces are dark or low-reflectivity; the full 50 m applies only to higher-reflectivity (90%) surfaces.
Supply voltage (9-36 V DC), IP67 protection, Class 1 laser class, and the 60×60×80 mm / 250 g housing are identical on both variants and do not affect the N/P choice.

📘 Need the full method? How to Choose a 2D LiDAR Scanner

When NOT to specify the DLD50T8N — and what to use instead

Wiring the NPN/PNP discrete output into a safety PLC's safety input as a stop or interlock signal

Why not: The product documentation labels this discrete output a protective / pre-warning interlock signal — it is not an OSSD. No Type, SIL or Category/PL rating is published for DLD50T8N/P. A pre-warning signal must not carry a safety function.

Use instead: The DAIDISIKE ST27 Series Safety Laser Scanner — Type 3 / SIL 2 / Cat. 3 PL d, dedicated OSSD outputs, 3 m or 5 m protective field at 1.8% remission.

Relying on the full 50 m range for dark or low-reflectivity objects such as tyres, rubber conveyor skirts or dark housings

Why not: The 50 m figure is rated at 90% target remission. At 10% remission the confirmed range is 20 m, with plus or minus 30 mm accuracy across the rated range.

Use instead: Base any stopping-distance or interlock-timing calculation on the 20 m @10% figure, not the 50 m best case. Ask us if you need a longer confirmed range on dark targets.

Ordering DLD50T8N when the panel is wired for sourcing (PNP) inputs, or vice versa

Why not: DLD50T8N (NPN / sinking) and DLD50T8P (PNP / sourcing) are two fixed, separate model variants. No field-selectable output polarity is published.

Use instead: Confirm the panel's sinking / sourcing convention before ordering and pick the matching N or P suffix.

You need a 100 Hz refresh rate and finer than 0.32 degree angular resolution at the same time

Why not: DLD50T8P is fixed at 100 Hz with fixed 0.32 degree resolution. DLD50T8N supports resolution down to 0.08 degrees but tops out at 50 Hz. No published variant offers both.

Use instead: Decide whether speed or point density is the priority, or ask us whether a variant covering both exists.

Specifications we do not publish yet

We only publish a figure once we are confident it is true. The items below are still being validated through further testing and real-world customer feedback, so for now we would rather leave them open than guess. If one of them matters to your design, ask us for the latest validated status.

Number of discrete I/O channels, per-channel drive current and zone-trigger logic — the source states only 'NPN/PNP IO output'.
Operating temperature range.
Ambient / background light immunity and blind-zone angle for this specific model.
Application-layer communication protocol over Ethernet (proprietary SDK, Modbus TCP, EtherNet/IP) beyond the 100BASE-TX physical layer.
Connector type, pinout and cable length.
Power consumption across the 9-36 V DC input range.
Housing material; MTBF or expected service life.
Certification documentation. Certification documents are available on request.

Frequently Asked Questions

What is the effective detection range of the DLD50T8N/P lidar?

It is dual-rated: 50 m at 90% target remission (reflectivity) and 20 m at 10% remission. Accuracy is ±30 mm across this range.

What is the difference between DLD50T8N and DLD50T8P?

DLD50T8N has NPN (sinking) discrete output, 50 Hz scan frequency, and selectable angular resolution of 0.08°/0.16°/0.32°. DLD50T8P has PNP (sourcing) discrete output, 100 Hz scan frequency, and fixed 0.32° angular resolution. Both include 100BASE-TX Ethernet.

Does this lidar provide both Ethernet data and a discrete switching output at the same time?

Yes. Both DLD50T8N and DLD50T8P output measurement/scan data over 100BASE-TX Ethernet while simultaneously providing a hard-wired NPN or PNP discrete output for direct interlock wiring.

Is the discrete output on DLD50T8N/P a certified safety output (OSSD)?

No. This is a protective/pre-warning interlock signal, not a certified safety output. It should not be used as, or represented as, a certified OSSD safety function.

What is the scanning angle (field of view) of the DLD50T8N/P?

280°.

What laser safety class is used, and is it eye-safe?

The unit uses a Class 1 laser, which is eye-safe under normal operating conditions per the applicable laser classification.

What is the operating voltage and protection rating?

9-36 V DC input, IP67 protection rating.

What are the physical dimensions and weight?

60 × 60 × 80 mm, 250 g.

Can I choose the angular resolution?

On DLD50T8N, angular resolution is selectable among 0.08°, 0.16°, and 0.32°. On DLD50T8P, angular resolution is fixed at 0.32°.

How does this model differ from the DLD-50D measuring lidar?

The core difference is the discrete I/O output: DLD50T8N/P adds hard-wired NPN or PNP switching output alongside Ethernet data output, which the DLD-50D does not have. Buyers who only need data output should evaluate DLD-50D, while buyers who also need a hard-wired interlock signal should evaluate DLD50T8N/P.

Works Well Together

On the same machine or line, DLD50T8N is typically ordered together with: Relay & Timer Modules · Safety Light Curtains · Proximity Sensors

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