Products › Laser switch sensor › TOF Laser ranging sensors DAI-JNS10 and DAI-G20
Compact TOF laser sensors for reliable distance / presence detection in complex scenes: DAI-JNS10 (0.05–5 m, ≤0.5 ms, Class 2) and DAI-G20 (0.05–10 m, ~1 ms, Class 1). Output options include dual-channel PNP/NPN, 4–20 mA analog, and RS-485 Modbus-RTU, with high ambient-light immunity and IP65 build.
Product Highlights
- Fast response: JNS10 down to ≤0.5 ms; G20 ~1 ms typical (up to 2 kHz measure frequency).
- Wide working range: JNS10 0.05–5 m; G20 0.05–10 m (10%–80% reflectivity, extended capability noted).
- Accuracy: JNS10 absolute error ±10 mm, repeatability ±2 mm; G20 absolute accuracy ±100 mm, repeatability ±5 mm.
- Outputs selectable by model: PNP/NPN, 4–20 mA, or RS-485 Modbus-RTU; load capacities as listed.
- Optics & safety: JNS10 laser 650 nm Class 2, G20 905 nm Class 1; strong ambient-light immunity.
- Rugged: IP65 enclosure; −20…+55/50 °C operating ranges; compact aluminum body.
- Install anywhere: tolerant to vibration/EMI; supports far-from-line mounting to avoid collisions.
Resolution & Typical Applications
| Use Case | Typical Setup |
|---|---|
| Presence / gap detection on conveyors | JNS10-PN (PNP/NPN) or G20-MK2 (PNP/NPN+4–20 mA); set threshold/window mode. |
| Level / loop control (roll-to-roll, tanks) | 4–20 mA variants (JNS10-MI / G20-MK2) to PLC analog input; apply hysteresis. |
| Robot reach / safety approach cues | RS-485 models (JNS10-485 / G20-RS) with Modbus distance readout. |
| Packaging access points / part picking | PNP/NPN models with millisecond response for fast reject/trigger. |
Note: choose laser class & optics appropriate to your site's safety policy; observe ISO/IEC laser safety labeling.
Detailed Specifications
| Item | DAI-JNS10-PN | DAI-JNS10-MI | DAI-JNS10-485 |
|---|---|---|---|
| Laser / Class | 650 nm diode, ≤1.3 mW, Class 2 | ||
| Measuring frequency | Up to 2 kHz | ||
| Working distance | 50–5000 mm | ||
| Response time | ≤0.5 ms (fastest) | ||
| Absolute error / Repeatability | ±10 mm / ±2 mm | ||
| Supply | 9–30 V | 18–30 V | 9–30 V |
| Interface | PNP & NPN | 4–20 mA | RS-485 (Modbus-RTU) |
| Load capability | ≤100 mA | ≤400 Ω @24 V | — |
| Power / IP / Temp. | <1 W (no output), IP65, −20…+55 °C; storage −40…+85 °C; humidity 35–85%RH (no condensation) | ||
| Ambient light immunity | Incandescent: >10,000 Lux @1 m; >3,000 Lux @5 m (receiving surface) | ||
| Size / Weight | 41×37.5×23 mm, ≈85 g | ||
| Item | DAI-G20-MK2 | DAI-G20-RS |
|---|---|---|
| Laser / Class | 905 nm diode, ≤0.4 mW (aiming 650 nm ≤5 mW), Class 1 | |
| Measuring frequency | 2 kHz | 20 Hz–5 kHz |
| Working distance | 10 m @10% reflectance; 0.05–10 m @80% reflectance (extendable capability noted) | |
| Response time | ~1 ms | |
| Absolute / Repeatability | ±100 mm / ±5 mm | |
| Supply | 9–30 V (analog 18–30 V) | 9–30 V |
| Interface | PNP, NPN + 4–20 mA | RS-485 (Modbus-RTU) |
| Load / Power | ≤100 mA | ≤500 Ω @24 V |
| Size / Weight | 52×44×31 mm, ≈140 g | |
| Ingress / Temp. | IP65; −20…+50 °C operating; storage −40…+80 °C; ambient light <10,000 Lux | |
Wiring & Modbus-RTU
DAI-JNS10 wiring (by variant)
| Variant | Wire color | Function |
|---|---|---|
| JNS10-PN | Brown | +9–30 V DC |
| JNS10-PN | Blue | GND |
| JNS10-PN | Black | NPN output |
| JNS10-PN | White | PNP output |
| JNS10-MI (4–20 mA) | Brown | +18–30 V DC |
| JNS10-MI | Blue | GND |
| JNS10-MI | Gray | 4–20 mA |
| JNS10-485 | Brown | +9–30 V DC |
| JNS10-485 | Blue | GND |
| JNS10-485 | Black | RS-485 B |
| JNS10-485 | White | RS-485 A |
DAI-G20 wiring (by variant)
| Variant | Wire color | Function |
|---|---|---|
| G20-MK2 | Brown | +9–30 V DC (analog 18–30 V) |
| G20-MK2 | Blue | GND |
| G20-MK2 | Black | NPN output |
| G20-MK2 | White | PNP output |
| G20-MK2 | Gray | 4–20 mA |
| G20-RS | Brown | +9–30 V DC |
| G20-RS | Blue | GND |
| G20-RS | Black | RS-485 B |
| G20-RS | White | RS-485 A |
Modbus-RTU map (RS-485 models)
| Register type | Address (rel.) | R/W | Len | Datatype | Function / Unit | Values |
|---|---|---|---|---|---|---|
| Input | 0x00 | RO | 2 | int16 | Measured distance (mm) | 0–65535 (out-of-range flags by 0 & 65535) |
| Holding | 0x00 | RW | 2 | int16 | Response speed (×100 µs) | 5=0.5 ms … 10000=1000 ms |
| Holding | 0x01 | RW | 2 | int16 | Baudrate (×100) | 96=9600; 192=19200; 1152=115200; 2560=256000; 4608=460800 |
| Holding | 0x02 | RW | 2 | int16 | Slave address | 1–247 |
| Holding | 0x03 | RW | 2 | int16 | Laser switch | 1=ON, 0=OFF |
Framing: RS-485, 8-N-2, Modbus-RTU. Function codes 0x03 / 0x04 / 0x06 / 0x10 and MEI 0x2B (Read Device ID).
Operating Modes (JNS10)
Detection modes
- Standard: single-point or two-point threshold.
- Reference-plane: set current distance as zero; trigger on ±set value.
- Window: NEAR/FAR window by one-point (±20 mm default) or two-point learn.
Hysteresis, delay (on/off/one-shot), NO/NC logic, and initialization (factory reset) are available via front keys.
Environmental notes
- Power wiring separate from high-voltage lines; power-up inhibit ~1 s.
- Protect the front lens; avoid direct sun/outdoor without shielding.
- Keep within specified temperature/humidity; check for vibration/leakage.
Need CAD/3D models or test reports?
Contact DAIDISIKE for application matching, aiming laser usage, and PLC integration tips.
Contact DAIDISIKE for application matching, aiming laser usage, and PLC integration tips.