Overview
The Banner Engineering QS18VN6DQ8 is a compact diffuse photoelectric sensor from the WORLD-BEAM QS18 Series, designed for reliable object detection in industrial automation and motion control applications. With a 10-30VDC operating range, 450mm sensing distance, and infrared sensing beam, this sensor delivers consistent performance across diverse manufacturing environments. The QS18VN6DQ8 features complementary solid-state NPN output and M12 integral quick-disconnect (QD) connector, enabling plug-and-play integration into existing systems.
Key Features
- Diffuse reflective sensing with 450mm (18 inch) range for background rejection
- Infrared LED light source for reliable operation in varying ambient light conditions
- NPN complementary solid-state output compatible with PLC and control logic inputs
- M12x1 integral quick-disconnect connector for fast, tool-free installation
- Compact rectangular form factor fits standard 18mm mounting holes
- 360° visible LED status indicators for simple troubleshooting
- IP67 enclosure rating and NEMA 4X construction for wet, dusty, and washdown environments
Technical Specifications
- Supply Voltage: 10-30V DC
- Sensing Range: 450mm (18 inches) diffuse mode
- Output Type: NPN complementary solid-state
- Beam Type: Infrared LED
- Connection: M12x1 integral quick-disconnect connector
- Housing Material: ABS plastic
- Response Time: 600μs
- Operating Temperature: -20 to +70°C (-4 to +158°F)
- Enclosure Rating: IP67 (IEC), NEMA 4X
- Weight: 1.72 lbs (0.78 kg)
- Sensing Position: Side (axial lens orientation)
Typical Applications
- Bottle and container detection on conveyor systems
- Box and pallet presence verification in automated warehouses
- Parts counting and sorting in manufacturing cells
- Liquid level detection in tanks and hoppers
- Machine guarding and safety interlocks
- Automated door and gate control systems
- Label and print mark detection on web lines
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix PLC systems via standard 24VDC input modules
- Siemens S7-1200, S7-1500, and other discrete input-capable controllers
- Mitsubishi FX and Q-series PLCs with 24VDC input cards
- Omron CP/CJ-series controllers with digital inputs
- Schneider Electric Modicon M241 and M261 controllers
- Any 10-30VDC control system with NPN sinking input
- EtherNet/IP and PROFINET networks via standard I/O gateway modules
Replaces / Drop-In Replacement For
- Banner QS18VP6DQ8 (cable version; same sensing specs, different connector)
- Banner QS18VN6D (non-quick-disconnect M12 version)
- Other QS18 Series diffuse sensors with identical 450mm range and 10-30VDC operation
Works With
- Studio 5000 (Allen-Bradley RSLogix 5000) via digital input modules
- TIA Portal (Siemens) with discrete input configuration
- GX Works (Mitsubishi) PLC programming software
- M-Soft CX-Programmer (Omron) control software
- EcoStruxure (Schneider Electric) IIoT and automation platforms
- PROFINET and EtherNet/IP networks through standard industrial gateways
- Industry-standard 24VDC I/O terminals and solid-state relays










