DL100-21AA2110: Rugged Laser Distance Sensor for Critical Operations

The SICK DL100-21AA2110 is a phase-shift optical time-of-flight laser distance sensor designed for high-precision dynamic positioning up to 100 m on Diamond Grade reflective tape. Its dual-port EtherNet/IP interface with DLR support makes it a dependable choice for mission-critical automation in demanding environments.

Engineers often seek a proximity probe alternative for long-range position feedback. This unit delivers non-contact measurement with a repeatability of 0.5 mm to 1 mm and a typical accuracy of ±2 mm to ±3 mm, making it suitable for demanding industrial positioning tasks.

Key Specifications of This unit

• Measurement Principle: Phase shift optical time-of-flight laser distance measurement.
• Measuring Range: 0.15 m to 100 m on Diamond Grade reflective tape.
• Light Source: Visible red laser diode, 658 nm, Class 2 per IEC 60825-1:2014, average optical power < 1 mW.
• Repeatability: 0.5 mm to 1 mm (typical 0.5 mm at 1 σ).
• Measurement Accuracy: Typical ±2 mm to ±3 mm.
• Maximum Tracking Velocity: 15 m/s.
• Maximum Acceleration: 15 m/s².
• Output Time / Measurement Cycle: ≥ 1 ms (continuous internal measurement rate 1 ms; fieldbus cycle dependent).
• Supply Voltage: DC 18 V to 30 V, reverse-polarity protected.
• Power Consumption: Typical 8 W to 10 W.
• Communication Interface: EtherNet/IP, dual-port 100 Mbit/s, DLR supported; 2x push-pull digital outputs (PNP/NPN, configurable B/Q, ≤ 100 mA); multifunctional input (MF).
• Electrical Connection: Power: male M12 4-pin; Ethernet: 2x female M12 4-pin (D-coded, SPEEDCON™).
• Ambient Temperature, Operation: -20 °C to +55 °C.
• Ambient Temperature, Storage: -40 °C to +75 °C.
• Enclosure Protection Rating: IP65 (EN 60529).
• Housing Material: Aluminum die-cast with acrylic glass (PMMA) optical window.
• Dimensions (W x H x D): 69.4 mm x 82.5 mm x 100.2 mm.
• Weight: Approx. 800 g.

The combination of a 100 m range, 15 m/s tracking velocity, and 15 m/s² acceleration supports high-speed automated storage and retrieval systems (ASRS). The EtherNet/IP interface with dual-port DLR enables ring topology for network redundancy, while the IP65 aluminum housing ensures reliable operation in dusty and wet industrial settings.

Applications and Use Cases

In oil and gas operations, This unit provides reliable position feedback for crane positioning, pipe handling, and storage yard automation. Its non-contact measurement principle avoids wear and tear associated with mechanical probes, making it a practical proximity probe equivalent for long-range applications.

For ASRS and automated warehouses, the sensor's high dynamic response and EtherNet/IP connectivity streamline integration with PLCs and motion controllers. The integrated LC display and optical 3-axis alignment bracket simplify setup and commissioning.

Additionally, the continuous condition monitoring feature tracks signal level attenuation, laser diode aging, and temperature, enabling predictive maintenance and reducing unplanned downtime in mission-critical processes.

Installation and Setup Guidance

Mount This unit using the optical 3-axis alignment bracket to ensure precise alignment with the reflective tape. Connect power via the male M12 4-pin connector and Ethernet via the two female M12 4-pin D-coded connectors. The dual-port EtherNet/IP interface supports daisy-chain or ring topologies with DLR for network resilience.

Verify that the supply voltage is within the 18 V to 30 V DC range and that the ambient temperature does not exceed the operating limits of -20 °C to +55 °C. The IP65 rating protects against dust and water jets, but avoid direct high-pressure cleaning of the optical window.

Maintenance and Reliability

Routine inspection of the optical window and connectors helps maintain measurement accuracy. This unit continuously monitors signal level attenuation, laser diode aging, and temperature, providing early warnings for maintenance. In harsh oil and gas environments, this built-for-demanding-environments design ensures reliability you can depend on.

Schedule periodic checks of the mounting and cabling, especially in high-vibration areas. The solid aluminum die-cast housing and PMMA window resist typical industrial contaminants, but clean the window with a soft, lint-free cloth when necessary.

Integration and Compatibility

This unit integrates seamlessly with EtherNet/IP networks, including Rockwell Automation and other compatible control systems. The dual-port 100 Mbit/s interface with DLR support allows ring topology for redundancy. When wiring into such networks, confirm cable and gateway requirements with PetroPartsOnline to ensure proper integration.

For systems previously using traditional proximity probes, This unit offers a non-contact alternative with a longer range and no wear. However, verify that the measurement principle and interface align with your control architecture.

Frequently Asked Questions

Q: What is the operating temperature range of This unit?

A: The SICK unit operates within an ambient temperature range of -20 °C to +55 °C and can be stored from -40 °C to +75 °C.

Q: Can This unit serve as a proximity probe alternative?

A: Yes, This unit provides non-contact distance measurement up to 100 m, making it a viable proximity probe alternative for long-range position sensing in industrial applications.

Q: What is the supply voltage requirement for This unit?

A: The sensor requires a DC supply voltage between 18 V and 30 V and is reverse-polarity protected.

Q: How does This unit communicate with control systems?

A: It uses EtherNet/IP with dual-port 100 Mbit/s and supports DLR for ring topology, plus two configurable push-pull digital outputs and a multifunctional input.

Q: What is the measurement accuracy of This unit?

A: The SICK unit offers a typical measurement accuracy of ±2 mm to ±3 mm and repeatability of 0.5 mm to 1 mm.

Contact PetroPartsOnline for parts suited to your application's requirements.

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