SDLD-05A TOF Laser Radar (Obstacle-Avoidance Type)

A 270° TOF laser radar with 0.1-14m range and 16 switchable zones for AGV/RGV obstacle avoidance.

Technical Specifications

Model	SDLD-05A
Detection Range	0.1-14m at 90% target reflectivity; 0.1-8m at 10% target reflectivity
Scanning Angle	270°
Detection Accuracy	±30mm
Repeatability	≤20mm
Angular Resolution	0.5°
Response Time (hardware)	50ms
Configurable Hold/Response Time (software)	Adjustable, default 200ms
Detection Zones	16 switchable zone groups, each with 3 independently editable sub-zones
Zone Shapes	Polygon (up to 15 vertices), fan, rectangle
Zone Group Selection	4-bit digital input code (IN1-IN4), 16 addressable configurations (0000-1111)
Communication Interface	Ethernet (RJ45 connector, UDP protocol, configurable IP address 1-254)
Digital I/O	Up to 4 NPN inputs / 4 NPN outputs (OUT1-OUT3 mapped to 3 sub-zones, OUT4 reserved); output load capacity <10mA
Local Configuration Port	USB Type-C
Laser	905nm (TOF)
Housing Material	Aluminum-alloy body with plastic cover (standard color red)
Dimensions	61×61×82mm
Weight	374g including cable
Power Supply	DC 9-36V (typical 12V)
Power Consumption	≤2.5W
Operating Temperature	-10°C to 50°C
Storage Temperature	-20°C to 55°C
Humidity	<85%RH, no condensation or frost
Ingress Protection	IP54
Shock Resistance	196m/s² (20G), 10 times per axis
EMC Standards Referenced	EN 61000-6-2:2005, EN 61000-6-4:2007+A1 (per manufacturer's technical documentation)

Overview

The SDLD-05A is a Time-of-Flight (TOF) 2D laser radar designed for obstacle-avoidance and area detection on indoor/outdoor mobile equipment. Per the manufacturer's own documentation, its typical application cases are Automated Guided Vehicles (AGV) and Rail Guided Vehicles (RGV). It is built for AGV/AMR integrators, machine builders, and industrial automation OEMs who need a single sensor to detect obstacles across a 270° field of view and switch between multiple pre-configured detection zones as the vehicle changes direction or speed.

The sensor delivers 270° single-unit coverage with a 0.1-14m detection range (at 90% target reflectivity; 0.1-8m at 10% reflectivity), ±30mm measurement accuracy, and ≤20mm repeatability at 0.5° angular resolution. Detection is organized into 16 switchable zone groups, each with 3 independently editable sub-zones, selected via a 4-bit digital input code (IN1-IN4) and configured visually over Ethernet (RJ45, UDP) alongside NPN digital I/O for direct interlock into the vehicle control loop.

Key Facts — SDLD-05A at a glance

The SDLD-05A TOF laser radar scans a 270° field of view with a detection range of 0.1-14m at 90% target reflectivity (0.1-8m at 10% reflectivity) and ±30mm measurement accuracy.
Detection zones are organized as 16 switchable zone groups, each with 3 independently editable sub-zones in polygon (up to 15 vertices), fan, or rectangular shapes.
Zone group selection is controlled by a 4-bit digital input code (IN1-IN4), addressing 16 pre-configured zone groups (0-15) without reprogramming the sensor.
The unit combines an Ethernet (RJ45, UDP) interface with NPN digital I/O (up to 4 inputs, 4 outputs) and a USB Type-C configuration port.
Housing is an IP54-rated aluminum-alloy body with a plastic cover, measuring 61×61×82mm and weighing 374g including cable, powered by DC 9-36V (typical 12V) at ≤2.5W.
The manufacturer's configuration software (configuration software) provides adjustable hold-time/response-time filtering (default 200ms) and object-size filtering (default: clusters under 5 points ignored) to suppress nuisance triggers, in addition to the datasheet's 50ms hardware response time.

Features & Benefits

270° single-sensor coverage with 0.1-14m TOF ranging

One scanner covers front and both sides of an AGV. Per the datasheet, maximum range is 0.1-14m at 90% target reflectivity and 0.1-8m at 10% target reflectivity, with ±30mm measurement accuracy and ≤20mm repeatability, at 0.5° angular resolution.

16 switchable zone groups, each with 3 independently editable sub-zones

Zone shapes can be drawn as polygon (up to 15 vertices), fan, or rectangle, and combined freely. Zone group selection is controlled by a 4-bit digital input code (IN1-IN4), giving 16 addressable configurations (binary 0000-1111) without re-programming the sensor.

Dual integration paths: Ethernet (UDP) plus NPN digital I/O for direct interlock

The unit connects to a PC or controller over Ethernet (RJ45, UDP protocol) for zone configuration and diagnostics, and separately drives up to 4 NPN digital outputs (OUT1-OUT3 mapped to the 3 sub-zones, OUT4 reserved) for hard-wired interlock into the vehicle's control loop. A USB Type-C port is provided for local configuration.

PC configuration software with visual zone editing and live point-cloud display

Zones are drawn/edited on screen with the configuration software, saved and re-opened as .ini configuration files, downloaded to the sensor, and verified live via point-cloud display in either Edit mode or Monitor mode, which auto-switches to the active zone as the vehicle moves through different zone groups.

Configurable response filtering to suppress nuisance triggers

Beyond the datasheet's 50ms response time, the configuration software offers an adjustable hold time and response time (each default 200ms) that filter how long an obstacle must be present or absent before the I/O output changes state, plus an object-size filter (default: point clusters smaller than 5 points are ignored) to exclude small-object interference.

Compact, wide-temperature-range metal housing rated IP54

Aluminum-alloy body with a plastic cover (standard color red), 61×61×82mm, 374g including cable, powered by DC 9-36V (typical 12V) at ≤2.5W, operating from -10°C to 50°C (storage -20°C to 55°C), humidity <85%RH without condensation or frost, and tested for shock (196m/s², 20G, 10x per axis) and vibration.

Applications

AGV / AMR forward and lateral obstacle detection — A 270° single-unit field of view covers the front and both sides of the vehicle; the manufacturer's documentation lists this as a typical application.

RGV (rail-guided vehicle) route obstacle/area monitoring — The manufacturer's documentation lists Rail Guided Vehicles (RGV) route obstacle and area monitoring directly as a typical application case.

Speed/direction-dependent zone switching on multi-segment AGV routes — A 4-bit digital input code switches between 16 preset zone groups, naturally supporting different protection ranges configured for straight-travel, turning, and narrow-aisle segments.

Dock / intersection area monitoring with custom zone shapes — Polygon (up to 15 vertices), fan, and rectangle shapes can be freely combined to fit irregular area outlines around docking or intersection zones.

Fixed-position equipment area monitoring with network status reporting — The Ethernet (UDP) interface lets a host computer or PLC read status, while the NPN outputs can directly drive an interlocked action circuit.

AGV fleet retrofits requiring PC-based zone diagnostics — The configuration software's point-cloud display lets field technicians visually verify that configured zones match the physical environment during retrofit or maintenance.

Models & Ordering Information

SDLD-05A Series

SDLD-05A

Currently the only model documented in this line, with no alternate range/interface variants.

How to Select

The 14m maximum range is rated at 90% target reflectivity; low-reflectivity or dark-colored targets (10% reflectivity) reduce usable range to about 8m, so estimate detection distance against your actual target's reflectivity rather than the 14m upper figure.
Choose the Ethernet (UDP) interface for bus-style status reads and visual configuration, and the NPN digital outputs (OUT1-3, active low, load capacity <10mA) for hard-wired interlock into slow-down/stop actions; the two integration paths can be used together.
For a single fixed protection area, use a rectangle or fan zone; for irregular obstacle environments (such as a rack corner), edit a polygon point by point (up to 15 vertices); for zones that must change with vehicle state, switch between 16 preset zone groups using the 4-bit input code (IN1-IN4).
The sensor's light spot is cone-shaped and diverges with distance; mount at a height of at least 200mm above the floor. If mounted lower than 200mm, tilt the sensor upward 1-3°; where multiple units cross-scan, use a tilt of at least 3° or offset the mounting height by at least 40mm to prevent mutual interference.
Power is DC 9-36V (typical 12V) with overall consumption of ≤2.5W, so the sensor can typically run directly off an existing AGV low-voltage circuit without an additional step-down module at the typical 12V supply level.

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

When NOT to specify the SDLD-05A — and what to use instead

Using the SDLD-05A as a safety-rated protective device because of its 'S' prefix or its AGV framing

Why not: The model name is suggestive, but no Type (IEC 61496), SIL (IEC 61508) or Category/PL (ISO 13849) rating is documented anywhere in our material, and its outputs are ordinary NPN digital I/O with an output load capacity under 10 mA — not OSSDs. Nothing about this device is safety-rated.

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

Mounting outdoors, in a washdown area, or anywhere it could be hosed down

Why not: The SDLD-05A is rated IP54 — dust-protected and splash-resistant only. That is weaker than the IP65 carried by the DLD05A3 and DLD20A5 in the same lineup, and it is not rated for direct water jets.

Use instead: For washdown or heavy-moisture areas use an IP65 or IP67 sensor, or fit the SDLD-05A in a protective enclosure and re-verify the resulting rating at the mounting point.

Sizing the maximum detection distance off the headline 14 m figure for dark or matte targets

Why not: Range is explicitly tied to target reflectivity: 0.1-14 m at 90% reflectivity, falling to 0.1-8 m at 10% reflectivity. Dark clothing, black rubber wheels and matte totes nearly halve the usable range.

Use instead: Design zone boundaries against the 8 m @10% figure for dark or unknown targets, not the 14 m @90% headline number.

A control panel that needs PNP (sourcing) digital outputs

Why not: The SDLD-05A's digital I/O is NPN only, on both the 4 inputs and the 3 zone-mapped outputs. No PNP variant is offered for this model.

Use instead: Verify panel input polarity before ordering. If PNP is required, DLD05A3-3P or DLD20A5-5P provide PNP outputs — though neither has the SDLD-05A's Ethernet interface.

Assuming the system reacts within the 50 ms datasheet figure at default settings

Why not: 50 ms is the hardware response time only. The configuration software separately applies an adjustable hold time and response-time filter, each defaulting to 200 ms, to suppress nuisance triggers. At default settings actual output latency is well beyond 50 ms.

Use instead: Review and where appropriate reduce the software hold-time and response-time filters, balancing against nuisance triggers, and validate real end-to-end latency in the field rather than quoting the 50 ms hardware figure as system response.

Relying on it to flag very small or thin objects at its standard 0.5 degree angular resolution

Why not: 0.5 degrees is coarser than the 0.1 degree option on the DLD05A3 and DLD20A5 in the same lineup, so scan points are more widely spaced at any given range and a slim object is more likely to fall between them.

Use instead: For fine small-object detection use DLD05A3 (5 m) or DLD20A5 (20 m), which offer a selectable 0.1 degree mode.

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.

Configuration software: we supply it with the sensor — request it from us rather than downloading it from a third-party site. Its licence terms are not yet published.
Physical length of the 14-core lead cable. The manual documents the conductor color and function assignment (VCC, GND, IN1-4, OUT1-4) but not a length.
Full Ethernet / UDP data protocol specification (packet and byte layout) for third-party PLC or SCADA integration. Only 'RJ45 connector, UDP protocol, configurable IP address' is documented.
Whether the configuration software is provided free of charge or under licence.
Guidance on false-trigger risk from highly reflective or mirror-like surfaces, beyond the 90% / 10% reflectivity range figures.
MTBF or rated service life.
Warranty period.
Certification documentation. Certification documents are available on request.

Frequently Asked Questions

What is the detection range of the SDLD-05A?

Per the datasheet, the maximum range is 0.1-14m against a target with 90% reflectivity, and 0.1-8m against a target with 10% reflectivity, with ±30mm measurement accuracy and ≤20mm repeatability.

What communication interfaces does it support?

An Ethernet interface (RJ45 connector, UDP protocol, configurable IP address 1-254) plus NPN digital I/O (up to 4 inputs / 4 outputs) and a USB Type-C port for local configuration, per the manufacturer's technical parameter table and wiring diagrams.

How many detection zones can be configured, and how do I switch between them?

The sensor supports 16 zone groups, each containing 3 independently editable sub-zones (polygon up to 15 vertices, fan, or rectangle shape). Zone group selection is controlled by a 4-bit binary code on digital inputs IN1-IN4 (values 0000-1111 map to zone groups 0-15).

Is the SDLD-05A a certified safety laser scanner (e.g., IEC 61496, PLd, SIL)?

Certification documents are available on request.

What is the response time?

The datasheet lists a hardware response time of 50ms. The configuration software additionally provides an adjustable hold time and response time (each default 200ms) that filter how long an obstacle must be present before the digital output changes state.

What laser wavelength does it use?

The ranging laser operates at 905nm using the Time-of-Flight (TOF) method.

What is the IP rating and operating environment?

IP54, operating temperature -10°C to 50°C, storage temperature -20°C to 55°C, humidity <85%RH without condensation or frost. The unit has also been tested for mechanical shock (196m/s², 20G, 10 times per axis) and vibration.

How is the sensor powered, and what does it consume?

DC 9-36V input (typical 12V), overall power consumption ≤2.5W. Digital I/O output load capacity is <10mA.

How do I configure and verify detection zones in the field?

Connect the sensor to a PC via Ethernet or serial port using the configuration software, draw or edit zone shapes visually, download the configuration to the device, then switch to Monitor mode to view a live point-cloud overlay confirming the configured zones match the physical environment.

What are the physical dimensions and weight?

61×61×82mm, 374g including cable, with an aluminum-alloy body and plastic cover (standard color red).

Works Well Together

On the same machine or line, SDLD-05A is typically ordered together with: Relay & Timer Modules · Safety Light Curtains · Proximity Sensors

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