DLD50T8N / DLD50T8P — One LiDAR, Two Output Paths
A 50 m-class single-line TOF scanner that speaks to both sides of the machine: Ethernet scan data for your software, a hardwired NPN or PNP switching signal for your panel.
- 50 m @90% remission · designed-for 20 m on dark 10% targets
- 280° field of view, ±30 mm accuracy
- N variant: NPN + Ethernet, 50 Hz, resolution to 0.08°
- P variant: PNP + Ethernet, 100 Hz refresh
- IP67, Class 1 laser, 9–36 V DC, 250 g
The Missing Middle Between Data LiDAR and Switch Sensor
Integrators usually face a false choice: a data-only LiDAR that needs software before anything can react, or a simple switching sensor that reacts but tells you nothing. The DLD50T8N/P refuses the choice. Its Ethernet 100BASE-TX port streams full scan data for navigation, monitoring or recording, while its discrete NPN (T8N) or PNP (T8P) output drives a wire-level signal your PLC, alarm chain or slow-down circuit acts on directly.
The measuring core is shared with our DLD-50D navigation platform: single-line TOF ranging across a 280° window, dual-rated at 50 m (90% remission) / 20 m (10%) with ±30 mm accuracy, in the same 60 × 60 × 80 mm, 250 g, IP67 body running from 9–36 V DC. If you only need the data channel, the plain DLD-50D is the cleaner buy; the T8 exists for machines that must also switch something.
Two Signal Paths from One Sensor
Original DAIDISIKE schematic: the network path informs, the wire path acts — both live in the same 250 g housing.
Shared 60 × 60 × 80 mm Platform
Variant Matrix & Shared Data
| Parameter | DLD50T8N | DLD50T8P |
|---|---|---|
| Discrete output polarity | NPN (sinking) | PNP (sourcing) |
| Scan frequency | 50 Hz | 100 Hz |
| Angular resolution | 0.08° / 0.16° / 0.32° selectable | 0.32° fixed |
| Data interface | Ethernet 100BASE-TX (both variants, alongside discrete I/O) | |
| Range | 50 m @90% remission · 20 m @10% remission | |
| Accuracy | ±30 mm | |
| Field of view | 280° | |
| Laser | Class 1, eye-safe | |
| Supply | 9–36 V DC | |
| Enclosure / size / mass | IP67 · 60 × 60 × 80 mm · 250 g | |
Open items we will confirm in writing rather than guess: discrete channel count and drive rating, Ethernet application protocol, operating temperature, connector pinout, power draw. Certification documents are available on request. This device also ships under the DLD-50D code as the Ethernet-only variant family.
Where the Hybrid Output Pays Off
Legacy PLC Retrofits
Give a ladder-logic machine LiDAR ranging through the discrete input it already understands — Ethernet stays available for later upgrades.
AGV/AMR Dual Path
Point clouds feed navigation while the hardwired output drives the vehicle's slow/stop chain without network latency.
Large Mobile Machinery
Stackers, gantries and RTG-class equipment use the 280° sweep and 50 m/20 m dual rating for staged approach warnings.
Perimeter & Zone Watch
Drop into panels built around switching sensors — no fieldbus re-engineering — while logging scans over Ethernet.
Frequently Asked Questions
Why would I want Ethernet and discrete outputs from the same LiDAR?
Because most retrofit and mobile-machine projects have two consumers: software that wants the full scan (navigation, monitoring, logging) and a control panel that wants a plain switching signal it can wire today. The DLD50T8N/P serves both simultaneously — 100BASE-TX Ethernet for the data path, hardwired NPN or PNP for the interlock path — so you mount, wire and maintain one sensor instead of two.
N or P — how do I choose the right suffix for my panel?
Match your input cards. Sinking (NPN) input circuits take the DLD50T8N; sourcing (PNP) circuits take the DLD50T8P. The polarity is fixed per variant, not field-selectable, so check the panel drawing before ordering. The suffix also fixes the scan behaviour: the N model runs 50 Hz with selectable 0.08°/0.16°/0.32° resolution, the P model runs 100 Hz at a fixed 0.32°.
Is the discrete output fast enough to bypass network latency for a stop signal?
That is its purpose: the switching output leaves the sensor as a wire-level signal, so the machine's slow-down or stop logic does not sit behind a network stack, a driver and application code. Note, though, that the factory documents it as a protective / pre-warning interlock signal — useful for automatic slow-downs and alarms, but not a certified safety output.
Can this scanner satisfy my machine-safety risk assessment?
No. This is a perception/measurement LiDAR, not an IEC 61496 certified safety component; do not use it as the sole means of personnel protection. The discrete output is not an OSSD and no Type, SIL or PL rating is published. When the risk assessment demands a protective device, that is our ST27 Type 3 safety laser scanner — and the two roles should not be blurred in the design review.
What range figure should the zone logic be designed on?
The dual rating is 50 m at 90% remission and 20 m at 10% remission, with ±30 mm accuracy. Tyres, rubber skirts, dark housings and dark clothing behave like the 10% case, so trip distances and slow-down bands for dark targets belong inside the 20 m envelope. The 50 m figure is real, but only for bright, cooperative surfaces.
What is not in the published spec that I should ask about?
The channel count and drive current of the discrete I/O, the Ethernet application protocol above the 100BASE-TX layer, the operating temperature range, connector pinout and power draw are not in the factory sheet we hold. We flag them rather than invent them — send your integration details and we will confirm each point in writing before you order.
What are the MOQ, lead time and OEM terms?
MOQ 1 unit; a bench evaluation against your actual PLC input card is the fastest way to settle the N/P choice. Typical lead time is 3–15 days by variant and quantity, confirmed on the quotation. Factory-direct export from China; OEM/ODM cooperation on cabling, labelling and preset zone parameters is available for volume programs through the inquiry form.
Safety Light Curtain — Customer Cases
Real installations from DAIDISIKE clients. Click any case to view in full. Filter by scenario to quickly find a similar setup.