SICK DT35-B15551 Dx35 Distance Sensor
A configurable laser distance sensor with analog, push-pull switching and IO-Link interfaces for natural targets.
Technical Summary
DT35-B15551 is a SICK Dx35 time-of-flight distance sensor, order number 1057651, for measuring natural objects. The device combines a visible red laser with configurable speed settings for range, repeatability and response-time tradeoffs.
Its output arrangement supports IO-Link, a push-pull switching output and a second adaptable channel that can operate as current, voltage or digital output.
Specifications
| Manufacturer | SICK |
|---|---|
| Model | DT35-B15551 |
| Order Number | 1057651 |
| Technology | Laser time-of-flight |
| Target Type | Natural objects |
| Measuring Range at 90% Remission | 50 to 12,000 mm |
| Measuring Range at 18% Remission | 50 to 5,300 mm |
| Measuring Range at 6% Remission | 50 to 3,100 mm |
| Resolution | 0.1 mm |
| Typical Accuracy | ±10 mm |
| IO-Link | Version 1.1, 38.4 kbit/s |
| Analog Output | 4–20 mA or 0–10 V, 12-bit |
| Digital Output | Push-pull PNP/NPN, up to 100 mA |
| Supply Voltage | 12–30 V DC; interface-specific minimums apply |
Features
- Configures measurement speed from Super Fast to Super Slow.
- Supports teach-in, output inversion and selectable switching modes.
- Provides process data, parameterization, diagnosis and data storage through IO-Link.
- Allows the multifunction input to control laser-off or external-teach behavior.
Compatibility
- Select the response-time setting for the actual target speed and process cycle.
- Check target remission and required range rather than using the 90% value for every surface.
- Confirm whether the PLC expects analog, push-pull digital or IO-Link process data.
- For IO-Link operation, use a compatible master and the required supply-voltage range.
Replacement
- Record teach points, speed setting, switching mode, output type and IO-Link parameters before exchange.
- Reproduce the optical alignment and keep the measurement window clean and unobstructed.
- After replacement, validate near and far targets across the real remission and temperature conditions.
FAQ
Why can the usable DT35-B15551 range be shorter than 12 m?
The maximum range depends on target remission; dark targets have a shorter specified range, so selection must use the actual surface reflectivity.
Which DT35-B15551 output should be specified for a replacement?
Provide whether Q2 is configured for 4–20 mA, 0–10 V or digital operation and whether IO-Link is used, because wiring and PLC logic depend on that choice.
Can DT35-B15551 parameters be restored automatically?
An IO-Link master can support parameter data storage, but confirm that the machine has the correct device description, master configuration and stored parameter set.
What affects DT35-B15551 response time?
The selected speed mode changes output rate and response time, so preserve the application setting rather than assuming the fastest mode is suitable.
What information should accompany a DT35-B15551 enquiry?
Include order number 1057651, target material and range, output mode, IO-Link use, connector/cable details, mounting distance and saved settings.
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