Cognex SLX-3804L 1D & 2D Fixed-mount Barcode Scanner - Bottom Scan Solution is an industrial-grade, low-profile bottom-side barcode reading and imaging system. High-Performance Bottom-Side Barcode Scanning for Logistics - Compact, easy-to-deploy solution with flexible configuration and advanced barcode reading capabilitiesCognex SLX-3804L 1D & 2D Fixed-mount Barcode Scanner - Bottom Scan Solution increases throughput with Compact Bottom-Side fast Barcode
Cognex SLX-3804L 1D & 2D Fixed-mount Barcode Scanner - Bottom Scan Solution is an industrial-grade, low-profile bottom-side barcode reading and imaging system. High-Performance Bottom-Side Barcode Scanning for Logistics - Compact, easy-to-deploy solution with flexible configuration and advanced barcode reading capabilities
Cognex SLX-3804L 1D & 2D Fixed-mount Barcode Scanner - Bottom Scan Solution increases throughput with Compact Bottom-Side fast Barcode Scanning/Reading
Cognex SLX-3804L 1D & 2D Fixed-mount Barcode Scanner delivers high-performance bottom-side barcode reading, increasing throughput across inbound, sorting, and outbound workflows in your logistics operations.
Designed for easy retrofits, the compact SLX-3804L:
• Delivers superior scanning performance of up to 99.9% read rates
• Deploys in less than an hour using a guided point-and-click setup
• Achieves quicker sortation responses with real-time decoding
Purpose-built for space-constrained logistics operations, the SLX-3804L:
• Retrofits easily under conveyors with a compact, low-profile design.
• Deploys standalone or in tunnels with simple setup and maintenance.
• Provides insights into upstream issues through embedded analysis of failed reads.
Key Technical Specifications:• Imaging & Performance: Features a line scan 1" CMOS sensor (4.096 MP, C-Mount), 84 fps acquisition speed, external white LED bar lighting, up to 99.9% read rates on 1D/2D codes, and narrow conveyor gap compatibility down to 5 mm.
• Connectivity & Communications: Includes M12 connectors, discrete inputs/outputs via breakout cable, multiple status LEDs, dual Ethernet ports (supporting TSN), RS-232, and protocols such as EtherNet/IP, PROFINET, and Modbus TCP.
• Physical & Environmental: Dimensions are 98mm (H) × 231.5mm (L) × 260 mm (W) with a 2,150 g weight, die-cast/extruded aluminium and zinc housing, operating temperatures of 0 °C to 40 °C, and a low-profile wide-angle viewport.
• Reliability & Compliance: Built to withstand shipping/storage shock (IEC 60068-2-27) and vibration (IEC 60068-2-6) standards.
High-Performance Bottom-Side Barcode Scanning for Logistics - Compact, easy-to-deploy solution with flexible configuration and advanced barcode reading capabilities
Superior scanning performance - Cognex SLX-3804L delivers 99.9% read rates with advanced decoding, specialized optics, and stable under-conveyor mounting for reliable bottom scanning in tight spaces.
Easy to set up, deploy, and maintain - The web-based UI enables fast installation, while the compact, dust-resistant design reduces downtime and maintenance for busy fulfilment centres.
Increase efficiency from scan to sort - The small-footprint SLX-3804L supports flexible under-conveyor placement, faster sortation response, and visibility into barcode issues.
Induction line barcode capture - Improve sorting efficiency and reduce manual rework and recirculation by decoding 1D and 2D barcodes on the bottom of packages as they enter the sorting system.
Expand ship sorter scanning to six sides - Increase throughput in high-speed ship sorting operations by adding bottom-side scanning to a 5-sided Modular Vision Tunnel (MVT).
Luggage tag traceability - Improve airline baggage-tracking efficiency by adding bottom-side scanning for full 360° luggage tag scanning.
Add bottom-side reading to top-side scanning - Boost scanning performance for high-volume inbound or outbound workflows with bottom-side barcode reading.
Web-based UI with guided setup - Minimise line downtime in busy fulfilment centres with an intuitive web UI and guided alignment that enables installation in under 45 minutes.
Wide-angle view, removable dust cover - Maximise read performance and uptime with an angled cover that limits dust build-up and can be removed in seconds for cleaning during operation.
Purpose-built optics and lighting - Achieve reliable decoding across small gaps with focused lighting and lensing that enable a compact design and shorter working distances than traditional line scan solutions.
High-speed 1D and 2D barcode Scanning/reading - Reduce rework and recirculation costs with industry-leading decoding algorithms and real-time scanning that deliver fast, accurate results.
Product Part Numbers:
Cognex SLX-3804L 1D & 2D Fixed-mount Barcode Scanner is an application-specific, low-profile logistics solution designed specifically for high-performance bottom-side barcode scanning beneath existing conveyors. Rather than being sold as a single standalone reader part number, it is deployed as part of the Cognex Solutions Experience (SLX) portfolio using structured system variants and standardized DataMan 380 hardware architectures.
The core system part numbers, sub-assemblies, and standard accessory numbers required to fully specify the system are detailed below:
Core SLX-3804L System Drawing & Assembly Part Numbers
These designations represent the pre-configured bottom-read layouts providing web-based setup, specialized optics, and dust-resistant under-conveyor mounting:
SLX-3804L-BR-MSC: SLX-3804L Bottom-Read (BR) Solution – Mid-Size Conveyor / Standard footprint mechanical and optical assembly kit.
SLX-3804L-BR-MLC: SLX-3804L Bottom-Read (BR) Solution – Modular Logistics Conveyor integration package including unified base mounting plates and narrow gap-width optical configurations.
Underpinning DataMan 380 Base Reader Engine Kits
Cognex SLX-3804L 1D & 2D Fixed-mount Barcode Scanner leverages the DataMan 380 Series high-resolution 1D/2D omnidirectional imaging platform. System configurations pull from the following base engine parts depending on resolution needs:
DM3808QL / DM3808X: DataMan 3808 Base Reader – 8 Megapixel (2840 × 2840) resolution engine for basic 1D/2D scanning arrays.
DM3812QL / DM3812X: DataMan 3812 Base Reader – 12 Megapixel (4096 × 3000) high-speed AI-assisted decoding engine.
DM3816QL / DM3816X: DataMan 3816 Base Reader – 16 Megapixel (5320 × 3032) ultra-wide field of view engine for multi-code and high-density sorting requirements.
Integrated Lenses & Protective Covers
Cognex SLX-3804L 1D & 2D Fixed-mount Barcode Scanner incorporates C-mount lens configurations designed to focalise through tight conveyor gaps:
CLN-C16F06-UR: 16 mm f/6.5 Ultra-Resolution C-mount lens.
CLN-C25F06-UR: 25 mm f/6.5 Ultra-Resolution C-mount lens.
COV-380-CMNT-45: 45 mm Plastic Lens Cover – Protects the 16 mm or 25 mm lens assemblies from falling debris and dust under the conveyor belt.
Primary Connection & System Cabling
CCB-84901-2001-xx: Ethernet Cable (Straight) – X-coded M12-8 to RJ-45 industrial high-speed communication link (xx denotes lengths: 2m, 5m, 10m, 15m, 30m).
CCB-PWRIO-xx: Power and I/O Breakout Cable (Straight) – M12 12-pin to flying lead cable for power distribution and hardware trigger integration (xx denotes lengths: 5m, 10m, 15m).
IVSL-5PM12-J2000: External Illumination Cable – M12 black connection cable with intensity control to synchronise external under-conveyor lights
