The Leuze BPS 348i SM 100 D Bar Code Positioning System (Part Number: 50124982) is an advanced optical absolute measurement instrument from the flagship BPS 300i Series engineered and manufactured by Leuze electronic (Germany). Engineered to supersede conventional positioning methodologies—such as rotary wheel encoders (which suffer from mechanical tire slippage and cumulative error accumulation) or optical distance lasers (constrained on curved tracks)—the BPS 348i delivers wear-free, contactless absolute position feedback with sub-millimeter precision along straight, curved, or switch-rail intralogistics paths.

The technological foundation of the BPS 348i SM 100 D relies on eye-safe visible red laser scanning technology (Laser Class 1 per IEC 60825-1:2014, 655 nm wavelength) configured with a lateral light beam exit. The sensor continuously decodes continuous barcode tape mounted parallel to the carrier track across an optical reading depth of field from 50 mm to 170 mm. Utilizing sophisticated digital edge-detection and differential interpolation algorithms, the device achieves an extraordinary measurement reproducibility (1 sigma) of 0.05 mm across an expansive measuring range from 0 to 10,000,000 mm (up to 10 kilometers of uninterrupted runway track). Benefiting from a rapid measurement output cycle of just 2.0 milliseconds and tolerating vehicle traverse velocities up to 10 m/s (36 km/h), the system facilitates seamless closed-loop position control for automated storage and retrieval systems (AS/RS stacker cranes), electrified monorail systems (EMS), and high-speed automated guided vehicles (AGV/AMR) without signal loss or latency.

A prominent distinguishing feature of the BPS 348i variant is its integrated industrial PROFINET RT fieldbus interface equipped with dual M12 connectors and internal line-switch functionality. This enables direct daisy-chaining into ring or line topologies within Siemens TIA Portal environments without requiring external physical network switches, drastically cutting field cabling infrastructure and cabinet footprints. Furthermore, the suffix "D" denotes an integrated monochromatic graphic display (128 x 32 pixels) complemented by multi-status LEDs. This local visual interface directly projects absolute position coordinates, barcode decode quality, bus communication health, and comprehensive diagnostic codes, enabling immediate on-site commissioning and diagnostics without requiring external maintenance laptops.

The optoelectronic assembly is encapsulated within a heavy-duty diecast metal cubic housing weighing 580 g, shielded with a scratch-resistant optical glass aperture and sealed to an IP65 protection rating. Backed by an extraordinary Mean Time To Failure (MTTF) rating of 83 years and tested against severe shock and vibration standards per IEC 60068, the Leuze 50124982 BPS 348i SM 100 D delivers unfaltering, maintenance-free 24/7/365 performance in demanding high-throughput automated logistics hubs.

• Manufacturer: Leuze electronic GmbH + Co. KG
• Country of Origin: Germany (100% Germany Origin)
• Part Number / Order Code: 50124982
• Complete Model Name: BPS 348i SM 100 D
• Product Family: Bar Code Positioning Systems BPS 300i Series
• Measurement Envelope: 0 to 10,000,000 mm (0 to 10,000 m / 10 km continuous)
• Reproducibility (1 Sigma): 0.05 mm
• Measurement Value Output Time: 2.0 ms
• Maximum Permissible Traverse Rate: 10 m/s (36 km/h)
• Optical Depth of Field: 50 mm to 170 mm
• Light Beam Exit Direction: Lateral (Right-angle side beam exit)
• Light Source: Semiconductor visible red laser, 655 nm wavelength
• Laser Safety Standard: Laser Class 1 eye-safe (per IEC 60825-1:2014 / EN 60825-1:2014)
• Transmitted Signal Shape: Continuous
• Fieldbus Communication Interface: PROFINET RT (Industrial Ethernet with integrated 2-port switch)
• Fieldbus Transmission Speed: 100 Mbit/s
• Supply Voltage Range: 18 to 30 V DC
• Maximum Power Consumption: 3.7 W
• Onboard Visual Display: Monochromatic graphic display (128 x 32 pixels) with status indicator LEDs
• Enclosure Material: Heavy-duty diecast metal
• Lens Cover Material: Scratch-resistant optical glass
• Dimensions (W x H x L): 100 mm x 108.7 mm x 48.3 mm
• Net Product Weight: 580 g
• Mounting Interface: Dovetail grooves on side or rear mounting holes via optional brackets
• Ingress Protection Rating: IP65 (per EN 60529 with mated connectors or protective caps)
• Electrical Safety Class: Class III
• Shock & Vibration Standards: IEC 60068-2-6 (Vibration test Fc), IEC 60068-2-27 (Shock test Ea)
• Reliability Rating (MTTF): 83 years
• Operating Ambient Temperature: -5°C to +50°C (Storage: -35°C to +70°C)
• Regulatory Approvals: c UL US, CE certified