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SOPASair Walkthrough

SOPASair is the built-in web interface of the LRS4000. It runs directly on the sensor, so no software installation is needed. Open http://<sensor-ip>/ in a browser on the same network as the sensor. The factory default address is 192.168.0.1.

You can view status and settings without logging in. To change settings, log in with the Authorized Client user level using the user icon in the top bar.

SOPASair Home dashboard showing LRS4581R status, live measurement data, I/O states, and detection history

The SOPASair Home dashboard: device status, live scan view, input and output states, and detection history at a glance.

Home

The Home page summarizes the sensor's state. It is a good place to start before you change any settings.

Status shows separate indicators for the device, connection, measurement, field evaluation, and data output. Because each state is reported independently, measurement can be running while external data output is switched off.

LRS4581R device and application status

Device and application status indicators.

Device information lists the model, part number, serial number, firmware version, system time, and the time of the last save. Click Find device to make the sensor LEDs blink, so you can identify the unit on site.

LRS4581R device information

Device identity and installed firmware version.

Configuration

The Configuration menu contains the measurement, filter, network, and I/O settings. For the matching REST parameters and value ranges, see the LRS4000 OpenAPI reference.

Basic Settings

Configuration > Basic settings defines how the sensor scans. Select a scan configuration to set the scan rate and angular resolution. The page also shows the angular range, interlaced mode, and maximum scanning range, and lets you adjust sensitivity, the status LED, and the measurement state.

LRS4581R basic settings

Scan configuration and measurement settings. The values shown are an example configuration.

Date and system time shows the device clock and its synchronization source. Apply computer time sets the sensor clock to your computer's time. For network-based time sources, see Time synchronization.

LRS4581R date and system time

Device clock and time synchronization settings.

Motor synchronization aligns the rotation of several scanners to avoid mutual interference. Select the synchronization source here when you integrate multiple sensors. See Motor synchronization for setup details.

LRS4581R motor synchronization

Motor synchronization source.

Filter

Configuration > Filter combines the echo, particle, median, and mean filters. The echo filter selects all, first, or last echoes. Expand each of the other filters to set its threshold, width, or averaging parameters. See Filter details for how each filter affects the measurement data.

LRS4581R filter settings

Echo, particle, median, and mean filters.

Contamination Indication

Configuration > Contamination indication monitors the front window for dirt. The sector diagram shows the contamination state per sector, using the color legend below it. You can configure whether a warning or error is output, the sensitivity, the monitored sectors, and the response delay. See Contamination indication for the application background.

LRS4581R contamination indication

Contamination status per sector and evaluation settings.

Connection Options

Configuration > Connection options contains the Ethernet settings: addressing mode, IP address, subnet mask, default gateway, MAC address, and link speed.

When you click Apply, the new network settings take effect immediately. The browser loses its connection if the sensor moves to an address that your computer cannot reach, so note the new address before applying the change.

LRS4581R Ethernet settings

Ethernet addressing and link settings.

Inputs and Outputs

Configuration > Inputs and outputs assigns each port as an input or an output. For outputs, select the signal sources, inversion, logic, and restart behavior. The connector diagram next to each port shows the corresponding pin, and the status indicators show the current physical state. Enable Use encoder if an external encoder is connected.

LRS4581R input and output assignments

Port assignments with connector pin diagrams.

Applications

The Applications menu contains measurement-data output and the on-device applications: field evaluation, 3D scan recording, and perpendicular distance measurement.

Data Output

Application > Data output selects the output format: Compact, LMDscandata, or Deactivated. The page lists the protocols and ports on which the data is available. See Data streaming for the transport options and parser requirements.

LRS4581R measurement-data output

Output format, protocols, and ports.

Output data format selects the optional content of each telegram: device name, time stamp, encoder values, and RSSI. It also sets the output interval and the distance scaling factor.

LRS4581R output data format

Optional telegram content, output interval, and scaling factor.

Output range limits the output to a start and stop angle.

LRS4581R output angular range

Start and stop angle of the output range.

Range filter removes measurement points outside a distance window.

LRS4581R distance filter

Distance filter.

Field Evaluation

Application > Field evaluation monitors fields for objects and switches outputs when a field is infringed. Each group combines fields, evaluations, and outputs, and has its own activation source. Resource requirements shows how much of the sensor's evaluation capacity is in use, and Detection list shows recent detections.

LRS4581R field evaluation groups

An evaluation group with its field, evaluation, and output.

Teach-in creates a field automatically from the current environment. Set the distances in front of and behind the detected contour and the minimum teach-in time, then start teach-in from the button or a digital input.

LRS4581R teach-in controls

Teach-in parameters and start control.

See Field evaluation for a complete commissioning procedure.

3D Scan Recording

Application > 3D scan recording combines 2D scans with the sensor's rotation to build a 3D point cloud. The rotation comes from the internal IMU or an external encoder. Start the recording with the button or an input signal, and download the resulting point cloud when it is complete.

LRS4581R 3D scan recording settings

3D scan recording with the internal IMU as rotation source.

Perpendicular Distance Measurement

Application > Perpendicular distance measurement reports the shortest and furthest measuring points within a field, relative to a reference plane. Use Add group to define a new measurement, and Result list for distance measurement to view the results.

LRS4581R perpendicular-distance application

A perpendicular-distance measurement group.

Diagnostics

Overview

Diagnostics > Overview combines status, device identity, operating information, the current device status, and the message log. Expand Operating information to see the number of power-on cycles, the operating hours, and the time of the last parameterization.

LRS4581R operating information

Power-on count, operating hours, and last parameterization.

The message table lists current and past events with their status number and description. If you need support, use Create diagnostic file to collect the device state in one file and send it to SICK. See Contact.

Cybersecurity

Diagnostics > Cybersecurity shows the HTTPS certificate with its fingerprint, serial number, issuer, and expiry date. Use Create certificate to generate a new certificate. The Hash calculator helps you verify file checksums. See HTTPS and certificates for the complete certificate setup.

LRS4581R cybersecurity certificate status

HTTPS certificate overview.

Data Recorder

Diagnostics > Data recorder explains how to install the SICK data recorder on your computer and connect it to the sensor. Use the recorder to capture measurement data for later analysis or support cases.

LRS4581R recorder instructions

Installation and connection steps for the data recorder.

Detection History

Diagnostics > Detection history records field-evaluation detections. Select the evaluations to include, then start the history. The Statistics section counts the detections per evaluation, and the Detection list shows each event with its time stamp. Use Reset detection history to clear the counters.

LRS4581R detection history

Detection counts per evaluation.