Maintenance & Troubleshooting

Alerts and Errors

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The sensor reports alerts and errors for diagnosis. Access them from the Diagnostics tab on the sensor homepage or by querying the HTTP endpoint get-alerts-http.

An alert triggers when its condition is met and clears when the condition resolves.

The log list records all trigger and clear events. A clear event shares all attributes with its trigger event except realtime and cursor, which increment. The log holds up to 32 events and operates as a FIFO - the oldest event is dropped when the list is full.

get-alerts-http also returns a next_cursor field. Each alert event has an incrementing cursor attribute. Save next_cursor after each call and pass it as the START_CURSOR on the next call to fetch only new log entries, reducing bandwidth.

mode accepts either summary or default.

Cursor behavior

The cursor wraps at 2^32. Understand wrap behavior to avoid unexpected results:

  • If cursor < (next_cursor - 32) % 2^32 then some entries may be filtered. For instance if cursor =0 and next_cursor =0 no entries will be reported immediately after cursor wrap, even though the log contains 32 entries, where submitting cursor =4294967264 (next_cursor - 32) % 2^32 will return all logged values.
  • If cursor > next_cursor all 32 entries will be reported.

Alerts example

Valid uses of GET /api/v1/sensor/alerts:

  • Example: Calling alerts with cursor =1
    • cursor=1
  • Example: Calling alerts with mode =summary
    • mode=summary
  • Example: Calling alerts with cursor =2 and mode =summary
    • cursor=2&mode=summary

Always base queries on the previous next_cursor value.

If the watchdog triggers, an alert code is appended to the response. The sensor buffer records the first few detected alerts.

The alerts reported have the following format:

{
    "category": "Category of the alert: e.g. OVERTEMP, UDP_TRANSMISSION",
    "level": "Level of alert: e.g. NOTICE, WARNING, ERROR",
    "realtime": "The timestamp of the alert in nanoseconds",
    "active": "Whether the alert was active or not at the time of this log: <true/false>",
    "msg": "A description of the alert",
    "cursor": "The sequential number of the alert, starting from 0 counting up",
    "id": "The hexadecimal identification code of the alert: e.g. 0x01000017",
    "msg_verbose": "Any additional verbose description that the alert may present"
}

Example showing active and logged forced temperature sensor failures occurring at timestamps 1569712873477772800, 1569712879991844096, 1569712884968876544 (nanoseconds).

The first logged error then resolves itself at 1569713260229536000.

The example has been JSON formatted:

{
    "active": [
       {
          "category": "OVERTEMP",
          "level": "ERROR",
          "realtime": "1569712879991844096",
          "active": true,
          "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.",
          "cursor": 1,
          "id": "0x01000001",
          "msg_verbose": ""
       },
       {
          "category": "OVERTEMP",
          "level": "ERROR",
          "realtime": "1569712884968876544",
          "active": true,
          "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.",
          "cursor": 2,
          "id": "0x01000002",
          "msg_verbose": ""
       }
    ],
    "next_cursor": 4,
    "log": [
       {
          "category": "OVERTEMP",
          "level": "ERROR",
          "realtime": "1569712873477772800",
          "active": true,
          "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.",
          "cursor": 0,
          "id": "0x01000000",
          "msg_verbose": ""
       },
       {
          "category": "OVERTEMP",
          "level": "ERROR",
          "realtime": "1569712879991844096",
          "active": true,
          "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.",
          "cursor": 1,
          "id": "0x01000001",
          "msg_verbose": ""
       },
       {
          "category": "OVERTEMP",
          "level": "ERROR",
          "realtime": "1569712884968876544",
          "active": true,
          "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.",
          "cursor":2 ,
          "id": "0x01000002",
          "msg_verbose": ""
       },
       {
          "category": "OVERTEMP",
          "level": "ERROR",
          "realtime": "1569713260229536000",
          "active": false,
          "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.",
          "cursor": 3,
          "id": "0x01000000",
          "msg_verbose": ""
       }
    ]
 }

Table of All Alerts and Errors

All sensor alerts and errors are listed below. Where possible, alert messages include steps to diagnose and resolve the issue.

If the recommended action does not clear the alert, update to the latest firmware. If the issue persists, download the diagnostics file from the sensor Web UI and contact Ouster support.

IDCategoryLevelAlert MessageSensor Action
0x00000000UNKNOWNErrorAn unknown error has occurred; please contact Ouster Support.No Action
0x01000000OVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x01000001OVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x01000002OVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x01000004OVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x01000005OVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x01000006OVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x01000007UNDERTEMPErrorUnit internal temperature too low. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x01000008OVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x01000009OVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x0100000AOVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x0100000BOVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x0100000CINTERNAL_COMMWarningUnit has experienced an internal COMM warning. If the issue persists, please try updating to the latest firmware.No Action
0x0100000DINTERNAL_COMMWarningUnit has experienced an internal COMM warning. If the issue persists, please try updating to the latest firmware.No Action
0x0100000ESHOT_LIMITINGNoticeTemperature is high enough where shot limiting may be engaged. Please see Thermal Integration Guide for heat sinking requirements.No Action
0x0100000FSHOT_LIMITINGWarningShot limiting mode is active. Laser power is partially attenuated. Please see Thermal Integration Guide for heat sinking requirements.No Action
0x01000010INTERNAL_FWErrorUnit has experienced an internal error. If the issue persists, please try updating to the latest firmware.No Action
0x01000011ETHERNET_LINK_BADWarningSensor has detected an issue with the connected ethernet link. Please check the network setup including the network switch and harnessing can support 1 Gbps Ethernet.No Action
0x01000012INTERNAL_COMMWarningUnit has experienced an internal COMM warning; some measurements may have been skipped. No action is required from the user to clear the Alert.No Action
0x01000013INTERNAL_COMMWarningUnit has experienced an internal COMM warning; some measurements may have been skipped. No action is required from the user to clear the Alert.No Action
0x01000014INTERNAL_COMMWarningUnit has experienced an internal COMM warning; some measurements may have been skipped. No action is required from the user to clear the Alert.No Action
0x01000015UDP_TRANSMISSIONWarningClient machine announced it is not reachable on the provided lidar data port; check that udp_dest and udp_port_lidar configured on the sensor matches client IP and port. This Alert may occur on sensor startup if the client is not listening at that time.No Action
0x01000016UDP_TRANSMISSIONWarningCould not send lidar data UDP packet to host. Check that network is up and the destination is reachable.No Action
0x01000017UDP_TRANSMISSIONWarningReceived an unknown error when trying to send lidar data UDP packet; closing socket.No Action
0x01000018UDP_TRANSMISSIONWarningClient machine announced it is not reachable on the provided IMU data port; check that udp_dest and udp_port_imu configured on the sensor matches client IP and port. This Alert may occur on sensor startup if the client is not listening at that time.No Action
0x01000019UDP_TRANSMISSIONWarningCould not send IMU UDP packet to host; check that network is up and the destination is reachable.No Action
0x0100001AUDP_TRANSMISSIONWarningReceived an unknown error when trying to send IMU UDP packet; closing socket.No Action
0x0100001BINTERNAL_FWErrorUnit has experienced a startup error. Unit is shutting down. Please try updating to the latest firmware.Shutdown
0x0100001CINTERNAL_FWErrorUnit has experienced a startup error. Unit is shutting down. Please try updating to the latest firmware.Shutdown
0x0100001DINTERNAL_FWErrorUnit has experienced a startup error. Unit is shutting down. Please try updating to the latest firmware.Shutdown
0x0100001EINTERNAL_FWErrorUnit has experienced a startup error. Unit is shutting down. Please try updating to the latest firmware.Shutdown
0x0100001FINTERNAL_FWErrorUnit has experienced a startup error. Unit is shutting down. Please try updating to the latest firmware.Shutdown
0x01000020INTERNAL_FWErrorUnit has experienced a startup error. Unit is shutting down. Please try updating to the latest firmware.Shutdown
0x01000021INTERNAL_FWErrorUnit has experienced a startup error. Unit is shutting down. Please try updating to the latest firmware.Shutdown
0x01000023INTERNAL_FWErrorUnit has experienced a startup error. Unit is shutting down. Please try updating to the latest firmware.Shutdown
0x01000024STARTUPErrorUnit has experienced a startup error. Unit is shutting down.Shutdown
0x01000025INTERNAL_COMMErrorUnit has experienced a startup error. Unit is shutting down. Please try updating to the latest firmware.Shutdown
0x01000026INTERNAL_COMMErrorUnit has experienced a startup error. Unit is shutting down.Shutdown
0x01000027INTERNAL_COMMErrorUnit has experienced a startup error. Unit is shutting down.Shutdown
0x01000028STARTUPErrorUnit has experienced an internal warning during startup and is restarting.No Action
0x01000029STARTUPErrorUnit has experienced an internal warning during startup and is restarting.No Action
0x0100002ASTARTUPErrorUnit has experienced an internal warning during startup and is restarting.No Action
0x0100002BSTARTUPErrorUnit has experienced an internal warning during startup and is restarting.No Action
0x0100002CSTARTUPErrorUnit has experienced an internal warning during startup and is restarting.No Action
0x0100002DSTARTUPErrorUnit has experienced an internal warning during startup and is restarting.No Action
0x0100002FINPUT_VOLTAGEErrorInput voltage is too low. Unit may shut down if the voltage drops farther. Consult the hardware user manual for voltage requirements.Shutdown
0x01000031INPUT_VOLTAGEErrorInput voltage is too high. Unit may shut down if the voltage increases farther. Consult the hardware user manual for voltage requirements.Shutdown
0x01000032UDP_CONNECTWarningCouldn’t open lidar UDP socket; please contact Ouster Support.No Action
0x01000033UDP_CONNECTWarningCouldn’t resolve hostname using DNS for lidar data; check network, DNS server, and udp_dest. If using static IP override, try setting udp_dest to an IP address or via auto-setting.No Action
0x01000034UDP_CONNECTWarningInvalid UDP port number; check network and udp_port_lidar.No Action
0x01000035UDP_CONNECTWarningCouldn’t reach destination client for lidar data; verify cabling, network address configuration, and subnet mask if using static IP overrideNo Action
0x01000036UDP_CONNECTWarningCouldn’t open IMU UDP socket; please contact Ouster Support.No Action
0x01000037UDP_CONNECTWarningCouldn’t resolve hostname using DNS for IMU data; check network, DNS server, and udp_dest. If using static IP override, try setting udp_dest to an IP address or via auto-setting.No Action
0x01000038UDP_CONNECTWarningInvalid UDP port number; check network and udp_port_imu.No Action
0x01000039UDP_CONNECTWarningCouldn’t reach destination client for IMU data; verify cabling, network address configuration, and subnet mask if using static IP overrideNo Action
0x0100003ASHOT_LIMITINGWarningShot limiting at maximum. Sensor shutdown imminent.No Action
0x0100003BINTERNAL_FWErrorUnit has experienced a startup error. Unit is shutting down.Shutdown
0x0100003CINTERNAL_FAULTErrorInternal fault detected; unit will restart to attempt recovery. If the issue persists, please try updating to the latest firmware. If the procedure above does not resolve the Alert, please contact Ouster Support.Restart
0x0100003DINTERNAL_FAULTErrorInternal fault detected; unit will restart to attempt recovery. If the issue persists, please try updating to the latest firmware. If the procedure above does not resolve the Alert, please contact Ouster Support.Restart
0x0100003EINTERNAL_FAULTErrorInternal fault detected; unit will restart to attempt recovery. If the issue persists, please try updating to the latest firmware. If the procedure above does not resolve the Alert, please contact Ouster Support.Restart
0x0100003FINTERNAL_COMMErrorUnit has experienced an internal COMM error; unit is shutting down.Shutdown
0x01000040INTERNAL_FAULTErrorUnit has experienced an internal COMM error; unit is shutting down.Shutdown
0x01000041INTERNAL_COMMWarningUnit has experienced an internal COMM warning; some measurements may have been skipped.No Action
0x01000042INTERNAL_COMMErrorUnit has experienced an internal COMM error; please contact Ouster Support.No Action
0x01000043INTERNAL_FWErrorUnit has experienced a startup error; please contact Ouster Support.No Action
0x01000048INTERNAL_FWErrorUnit has experienced a startup error; please contact Ouster Support.No Action
0x01000049INTERNAL_FWErrorUnit has experienced a startup error; please contact Ouster Support.No Action
0x0100004ASTARTUPErrorUnit has experienced a startup error; please contact Ouster Support.No Action
0x0100004BSTARTUPErrorUnit has experienced a startup error; please contact Ouster Support.No Action
0x0100004CINTERNAL_FAULTErrorInternal fault detected; unit is shutting down.Shutdown
0x0100004DINTERNAL_FAULTErrorInternal fault detected; unit is shutting down.Shutdown
0x0100004EWARMUP_ISSUEErrorSensor warmup process is taking longer than expected; please ensure sensor is thermally constrained per requirements.No Action
0x0100004FWARMUP_ISSUEErrorSensor warmup process is taking longer than expected; please ensure sensor is thermally constrained per requirements.No Action
0x01000050MOTOR_CONTROLWarningThe phase lock offset error has exceeded the threshold. Check that the time source is accurate and the reduce the movement of the sensor including mechanical movement, shock, or vibration.No Action
0x01000051MOTOR_CONTROLErrorThe phase lock control failed to achieve a lock multiple times; check that the time source is accurate.No Action
0x01000052CONFIGErrorConfiguration value is invalid or out of bounds. Unit is shutting down. Try resetting the sensor configuration.Shutdown
0x01000053WARMUP_ISSUEErrorSensor warmup process has failed. Unit is shutting down. Check the sensor operating conditions are within operating bounds.Shutdown
0x01000054INTERNAL_FAULTNoticeUnexpected hardware configuration detected. Please contact Ouster Support.No Action
0x01000055UDP_TRANSMISSIONWarningUnit has experienced a packet drop rate above normal threshold. Please check that the network has at least 1000 Mbps connection. Common causes of this notice may be 100 or 10 Mbps network connections.No Action
0x01000056INTERNAL_FAULTErrorInternal fault detected; unit will restart to attempt recovery.Restart
0x01000057OVERTEMPWarningSensor temperature is too high. Sensor could have degraded range performance.No Action
0x01000058OVERTEMPErrorSensor temperature is too high. Unit is shutting down.Shutdown
0x01000059INTERNAL_FAULTErrorInternal fault detected; unit will restart to attempt recovery.Restart
0x0100005AINTERNAL_FAULTWarningUnit has experienced an internal COMM warning; some measurements may have been skipped. Check sensor operating conditions.No Action
0x0100005BINTERNAL_FAULTWarningUnit has experienced an internal COMM warning; some measurements may have been skipped. Check sensor operating conditions.No Action
0x0100005CINTERNAL_FAULTWarningUnit has experienced an internal COMM warning; some measurements may have been skipped. Check sensor operating conditions.No Action
0x0100005DINTERNAL_FAULTErrorInternal fault detected; unit will restart to attempt recovery. If the issue persists, please try updating to the latest firmware. If the procedure above does not resolve the Alert, please contact Ouster Support.Restart
0x0100005EINTERNAL_FAULTErrorUnit has experienced an overcurrent event that could degrade data and/or sensor performance; unit will restart to attempt recovery. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.Restart
0x0100005FIO_CONNECTIONWarningUnit has stopped receiving SYNC_PULSE_IN signals and is configured to expect them. Check electrical inputs to sensor.No Action
0x01000060IO_CONNECTIONWarningUnit has stopped receiving NMEA messages at the MULTIPURPOSE_IO port and is configured to expect them. Check electrical inputs to sensor.No Action
0x01000061INTERNAL_COMMErrorUnit has experienced an internal COMM error. Unit will restart to attempt recovery.Restart
0x01000062INTERNAL_FAULTErrorUnit has experienced an internal error; please contact Ouster Support.No Action
0x01000064MOTOR_CONTROLErrorUnit failed to maintain target spin rate; please contact Ouster Support.No Action
0x01000065MOTOR_CONTROLErrorUnit has experienced an internal error; please contact Ouster Support.No Action
0x01000067INTERNAL_FWErrorUnit has experienced a startup error; unit is shutting down.Shutdown
0x01000068INTERNAL_FWErrorUnit has experienced a startup error; unit is shutting down.Shutdown
0x01000069MOTOR_CONTROLWarningUnit is spinning outside of tolerant range; check sensor operating conditions.No Action
0x0100006AMOTOR_CONTROLWarningUnit is spinning outside of tolerant range; check sensor operating conditions.No Action
0x0100006BOVERTEMPErrorUnit has shut down due to overheating.Shutdown
0x0100006CINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100006DINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100006EINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100006FINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000070INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000071INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000072INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000073INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000074INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000075INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000076INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000077INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000078INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000079INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100007AINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100007BINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100007CINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100007DINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100007EINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100007FINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000080INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000081INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000082INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000083INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000084INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000085INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000088CONFIGNoticePlease note all commands in the TCP API are in planned obsolescence. Please consider using the HTTP API instead. The TCP API is subject to deprecation shortly. Please refer to Firmware User Manual for more information or reach out to Ouster Customer support.No Action
0x0100008AINTERNAL_FAULTErrorUnit has experienced an overcurrent event that could degrade data and/or sensor performance; unit will restart to attempt recovery. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.Restart
0x0100008BINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100008CINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100008DINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100008EINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100008FINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000090INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000091INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000092INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000093INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000094INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000095INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000096INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000097INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000098INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000099INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100009AINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100009BINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100009CINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100009DCONFIGNoticeSetting the signal multiplier value on a Rev7 OS2 sensor to 2x or 3x is not supported and the sensor has fallen back to 1x behavior. This does not apply to any other sensor models or prior generations of OS2. Please refer to Firmware User Manual for more information or contact Ouster Support.No Action
0x0100009EINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x0100009FINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000A0INTERNAL_COMMWarningUnit has experienced an internal COMM warning. If the issue persists, please try updating to the latest firmware.No Action
0x010000A1UNDERTEMPWarningSensor temperature is too low. Sensor could have degraded range performance.No Action
0x010000A2INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000A3INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000A4INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000A5CONFIGNoticeWhen ‘Minimum Range (cm)’ is set to 30cm or less, Ouster recommends setting ‘Return Order’ to FARTHEST_TO_NEAREST. Please refer to Firmware User Manual for more information.No Action
0x010000A6UDP_TRANSMISSIONWarningCould not send lidar UDP data packet for more than 500 ms. This may occur if the network was unreachable.No Action
0x010000A7UDP_TRANSMISSIONWarningCould not send IMU UDP data packet for more than 500 ms. This may occur if the network was unreachable.No Action
0x010000A8STARTUPErrorUnit has experienced an internal error during startup.No Action
0x010000A9WARMUP_ISSUEWarningSensor startup will be delayed until the sensor reaches its minimum operating temperature. Please refer to Firmware User Manual for more informationNo Action
0x010000AACONFIGNoticePlease note that the FUSA_RNG15_RFL8_NIR8_DUAL profile option of config parameter udp_profile_lidar is in planned obsolescence. FUSA profile selection has been replaced by the config parameter header_type. Please refer to Firmware User Manual for more information or reach out to Ouster Customer support.No Action
0x010000ABSTARTUPErrorUnit has experienced an internal warning during startup and is restarting.No Action
0x010000ACUDP_CONNECTWarningCouldn’t open Zone Monitor UDP socket; please contact Ouster Support.No Action
0x010000ADUDP_CONNECTWarningCouldn’t resolve hostname using DNS for Zone Monitor data; check network, DNS server, and udp_dest_zm. If using static IP override, try setting udp_dest_zm to an IP address or via auto-setting.No Action
0x010000AEUDP_CONNECTWarningInvalid UDP port number; check network and udp_port_zm.No Action
0x010000AFUDP_CONNECTWarningCouldn’t reach destination client for Zone Monitor data; verify cabling, network address configuration, and subnet mask if using static IP overrideNo Action
0x010000B0UDP_TRANSMISSIONWarningClient machine announced it is not reachable on the provided Zone Monitor data port; check that udp_dest_zm and udp_port_zm configured on the sensor matches client IP and port. This alert may occur on sensor startup if the client is not listening at that time.No Action
0x010000B1UDP_TRANSMISSIONWarningCould not send Zone Monitor UDP packet to host; check that network is up and the destination is reachable.No Action
0x010000B2UDP_TRANSMISSIONWarningReceived an unknown error when trying to send Zone Monitor UDP packet; closing socket.No Action
0x010000B3UDP_TRANSMISSIONWarningCould not send Zone Monitor UDP data packet for more than 500 ms. This may occur if the network was unreachable.No Action
0x010000B4CONFIGErrorError occurred initializing Zone Monitor with given configuration.No Action
0x010000B5STARTUPErrorUnit has experienced an internal warning during startup and is restarting.No Action
0x010000B6STARTUPErrorError occurred while starting Zone Monitor.No Action
0x010000B7INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000B8INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000B9INTERNAL_COMMErrorUnit has experienced an internal COMM error. Unit will restart to attempt recovery.Restart
0x010000BAOVERTEMPErrorUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x010000BBINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000BCINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000BDINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000BEINTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000BFINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000C0INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000C1INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000C2INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000C3INTERNAL_FAULTErrorUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000C4INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000C5INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000C6INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000C7UNDERTEMPWarningUnit internal temperature is too low. Unit may not be able to start. Consult the hardware user manual for operating temperature requirements.No Action
0x010000C8UNDERTEMPWarningUnit internal temperature is too low. Unit may not be able to start. Consult the hardware user manual for operating temperature requirements.No Action
0x010000C9UNDERTEMPWarningUnit internal temperature is too low. Unit may not be able to start. Consult the hardware user manual for operating temperature requirements.No Action
0x010000CAUNDERTEMPWarningUnit internal temperature is too low. Unit may not be able to start. Consult the hardware user manual for operating temperature requirements.No Action
0x010000CBINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000CCINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000CDINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000CEINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000CFINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000D0INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000D1INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000D2INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000D3INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000D4INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000D5INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000D6INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000D7INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000D8INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000D9INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000DAINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000DBINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000DCINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000DDINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000DEINPUT_VOLTAGEWarningInput voltage is too high. Unit may shut down if the voltage increases farther. Consult the hardware user manual for voltage requirements.Shutdown
0x010000DFINPUT_VOLTAGEWarningInput voltage is too low. Unit may shut down if the voltage drops farther. Consult the hardware user manual for voltage requirements.Shutdown
0x010000E0INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000E1INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000E2OVERTEMPWarningUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x010000E3UNDERTEMPWarningUnit internal temperature is too low. Unit may not be able to start. Consult the hardware user manual for operating temperature requirements.No Action
0x010000E4INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000E5INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000E6INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000E7INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000E8INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000E9INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000EAINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000EBINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000ECINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000EDINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000EEINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000EFINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000F0INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000F1INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000F2INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000F3INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000F4INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000F5INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000F6INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000F7INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000F8OVERTEMPWarningUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x010000F9UNDERTEMPWarningUnit internal temperature is too low. Unit may not be able to start. Consult the hardware user manual for operating temperature requirements.No Action
0x010000FAINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000FBINTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x010000FCOVERTEMPWarningUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x010000FDUNDERTEMPWarningUnit internal temperature is too low. Unit may not be able to start. Consult the hardware user manual for operating temperature requirements.No Action
0x010000FEOVERTEMPWarningUnit internal temperature too high. Unit is shutting down. Please see Thermal Integration Guide for heat sinking requirements.Shutdown
0x010000FFUNDERTEMPWarningUnit internal temperature is too low. Unit may not be able to start. Consult the hardware user manual for operating temperature requirements.No Action
0x01000100INTERNAL_FWErrorUnit has experienced a startup error. Unit will restart to attempt recovery. If the issue persists, please try updating to the latest firmware. If the procedure above does not resolve the Alert, please contact Ouster Support.Restart
0x01000101INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000102INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000103INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000104INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000105INTERNAL_FAULTWarningUnit has experienced an internal fault that could degrade data and/or sensor performance. Please stop running sensor if this alert persists and contact Ouster Support with a copy of the diagnostics file.No Action
0x01000106INTERNAL_FAULTErrorUnit has experienced a startup error. Unit will restart to attempt recovery. If the issue persists, please try updating to the latest firmware. If the procedure above does not resolve the Alert, please contact Ouster Support.Restart
0x01000107INTERNAL_FAULTErrorInternal fault detected; unit will restart to attempt recovery. If the issue persists, please try updating to the latest firmware. If the procedure above does not resolve the Alert, please contact Ouster Support.Restart
0x01000108INTERNAL_FAULTErrorInternal fault detected; unit will restart to attempt recovery. If the issue persists, please try updating to the latest firmware. If the procedure above does not resolve the Alert, please contact Ouster Support.Restart