Alerts and Errors
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:
1 { 2 "category": "Category of the alert: e.g. OVERTEMP, UDP_TRANSMISSION", 3 "level": "Level of alert: e.g. NOTICE, WARNING, ERROR", 4 "realtime": "The timestamp of the alert in nanoseconds", 5 "active": "Whether the alert was active or not at the time of this log: <true/false>", 6 "msg": "A description of the alert", 7 "cursor": "The sequential number of the alert, starting from 0 counting up", 8 "id": "The hexadecimal identification code of the alert: e.g. 0x01000017", 9 "msg_verbose": "Any additional verbose description that the alert may present" 10 }
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:
1 { 2 "active": [ 3 { 4 "category": "OVERTEMP", 5 "level": "ERROR", 6 "realtime": "1569712879991844096", 7 "active": true, 8 "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.", 9 "cursor": 1, 10 "id": "0x01000001", 11 "msg_verbose": "" 12 }, 13 { 14 "category": "OVERTEMP", 15 "level": "ERROR", 16 "realtime": "1569712884968876544", 17 "active": true, 18 "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.", 19 "cursor": 2, 20 "id": "0x01000002", 21 "msg_verbose": "" 22 } 23 ], 24 "next_cursor": 4, 25 "log": [ 26 { 27 "category": "OVERTEMP", 28 "level": "ERROR", 29 "realtime": "1569712873477772800", 30 "active": true, 31 "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.", 32 "cursor": 0, 33 "id": "0x01000000", 34 "msg_verbose": "" 35 }, 36 { 37 "category": "OVERTEMP", 38 "level": "ERROR", 39 "realtime": "1569712879991844096", 40 "active": true, 41 "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.", 42 "cursor": 1, 43 "id": "0x01000001", 44 "msg_verbose": "" 45 }, 46 { 47 "category": "OVERTEMP", 48 "level": "ERROR", 49 "realtime": "1569712884968876544", 50 "active": true, 51 "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.", 52 "cursor":2 , 53 "id": "0x01000002", 54 "msg_verbose": "" 55 }, 56 { 57 "category": "OVERTEMP", 58 "level": "ERROR", 59 "realtime": "1569713260229536000", 60 "active": false, 61 "msg": "Unit internal temperature out of bounds; please ensure proper heat sinking.", 62 "cursor": 3, 63 "id": "0x01000000", 64 "msg_verbose": "" 65 } 66 ] 67 }
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.
Note: 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.
| ID | Category | Level | Alert Message | Sensor Action |
|---|---|---|---|---|
0x01000000 | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x01000001 | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x01000002 | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x01000003 | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x01000004 | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x01000005 | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x01000006 | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x01000007 | UNDERTEMP | Error | Unit internal temperature too low; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x01000008 | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x01000009 | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x0100000A | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x0100000B | OVERTEMP | Error | Unit internal temperature too high; Unit is shutting down. Please refer to Thermal Integration Guide for heat sinking requirements. | Shutdown |
0x0100000C | INTERNAL_COMM | Warning | Unit has experienced an internal COMM warning. If the issue persists, update to the latest FW. Contact Ouster Support if the above steps do not resolve the alert with Diagnostic file. | No Action |
0x0100000D | INTERNAL_COMM | Warning | Unit has experienced an internal COMM warning. If the issue persists, update to the latest FW. Contact Ouster Support if the above steps do not resolve the alert with Diagnostic file. | No Action |
0x0100000E | SHOT_LIMITING | Notice | Temperature is high enough where shot limiting may be engaged; Please refer to Thermal Integration Guide for heat sinking requirements. | No Action |
0x0100000F | SHOT_LIMITING | Warning | Shot limiting mode is active. Laser power is partially attenuated; Please refer to Thermal Integration Guide for heat sinking requirements. | No Action |
0x01000010 | INTERNAL_FW | Error | Unit has experienced an internal error; If the issue persists, update to the latest FW. Contact Ouster Support with Diagnostic file, if the above steps do not resolve the alert. | No Action |
0x01000011 | ETHERNET_LINK_BAD | Warning | Sensor 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. If you experience no issues with this Alert active, this alert can be ignored. | No Action |
0x01000012 | INTERNAL_COMM | Warning | Unit has experienced an internal COMM warning: some measurements may have been skipped. No action is required from the user to clear the Alert. If the issue persists on FW update, contact Ouster Support with diagnostic file. | No Action |
0x01000013 | INTERNAL_COMM | Warning | Unit has experienced an internal COMM warning: some measurements may have been skipped. No action is required from the user to clear the Alert. If the issue persists on FW update, contact Ouster Support with diagnostic file. | No Action |
0x01000014 | INTERNAL_COMM | Warning | Unit has experienced an internal COMM warning: some measurements may have been skipped. No action is required from the user to clear the Alert. If the issue persists on FW update, contact Ouster Support with diagnostic file. | No Action |
0x01000015 | UDP_TRANSMISSION | Warning | Client 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. If the issue persists, contact Ouster Support. | No Action |
0x01000016 | UDP_TRANSMISSION | Warning | Could not send lidar data UDP packet to host; check that network is up and the destination is reachable. | No Action |
0x01000017 | UDP_TRANSMISSION | Warning | Received an unknown error when trying to send lidar data UDP packet; closing socket. | No Action |
0x01000018 | UDP_TRANSMISSION | Warning | Client 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. | No Action |
0x01000019 | UDP_TRANSMISSION | Warning | Could not send IMU UDP packet to host; check that network is up and the destination is reachable. | No Action |
0x0100001A | UDP_TRANSMISSION | Warning | Received an unknown error when trying to send IMU UDP packet; closing socket. | No Action |
0x0100001B | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x0100001C | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x0100001D | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x0100001E | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x0100001F | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x01000020 | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x01000021 | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x01000022 | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x01000023 | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x01000024 | STARTUP | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x01000025 | INTERNAL_COMM | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x01000026 | INTERNAL_COMM | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x01000027 | INTERNAL_COMM | Error | Unit has experienced a startup error; Unit is shutting down. Update the Firmware to the latest version, if the issue persists please contact Ouster Support. | Shutdown |
0x01000028 | STARTUP | Warning | Unit has experienced an internal warning during startup and is restarting. | Restart |
0x01000029 | STARTUP | Warning | Unit has experienced an internal warning during startup and is restarting. | Restart |
0x0100002A | STARTUP | Warning | Unit has experienced an internal warning during startup and is restarting. | Restart |
0x0100002B | STARTUP | Warning | Unit has experienced an internal warning during startup and is restarting. | Restart |
0x0100002C | STARTUP | Warning | Unit has experienced an internal warning during startup and is restarting. | Restart |
0x0100002D | STARTUP | Warning | Unit has experienced an internal warning during startup and is restarting. | Restart |
0x0100002E | INPUT_VOLTAGE | Warning | Input voltage is close to being too low. Consult the hardware user manual for voltage requirements. Raise voltage immediately. | No Action |
0x0100002F | INPUT_VOLTAGE | Error | Input voltage is too low. Unit may shut down if the voltage drops farther. Consult the hardware user manual for voltage requirements. | Shutdown |
0x01000030 | INPUT_VOLTAGE | Warning | Input voltage is close to being too high. Consult the hardware user manual for voltage requirements. Lower voltage immediately. | No Action |
0x01000031 | INPUT_VOLTAGE | Error | Input voltage is too high. Unit may shut down if the voltage increases farther. Consult the hardware user manual for voltage requirements. | Shutdown |
0x01000032 | UDP_CONNECT | Warning | Couldn’t open lidar UDP socket; please contact Ouster Support. | No Action |
0x01000033 | UDP_CONNECT | Warning | Couldn’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 |
0x01000034 | UDP_CONNECT | Warning | Invalid UDP port number; check network and udp_port_lidar. | No Action |
0x01000035 | UDP_CONNECT | Warning | Couldn’t reach destination client for lidar data; verify cabling, network address configuration, and subnet mask if using static IP override | No Action |
0x01000036 | UDP_CONNECT | Warning | Couldn’t open imu UDP socket; please contact Ouster Support. | No Action |
0x01000037 | UDP_CONNECT | Warning | Couldn’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 |
0x01000038 | UDP_CONNECT | Warning | Invalid UDP port number; check network and udp_port_imu. | No Action |
0x01000039 | UDP_CONNECT | Warning | Couldn’t reach destination client for IMU data; verify cabling, network address configuration, and subnet mask if using static IP override | No Action |
0x0100003A | SHOT_LIMITING | Warning | Shot limiting mode at maximum. Sensor shutdown imminent. | No Action |
0x0100003B | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is in Error Stopped (Shutdown) state. Please contact Ouster Support. | Shutdown |
0x0100003C | INTERNAL_FAULT | Error | Internal fault detected; Unit will restart to attempt recovery. If the issue persists, update Firmware to the latest version. Contact Ouster Support if the above steps don’t resolve the Alert. | Restart |
0x0100003D | INTERNAL_FAULT | Error | Internal fault detected; unit will restart to attempt recovery. If the issue persists, update Firmware to the latest version. Contact Ouster Support if the above steps don’t resolve the Alert. | Restart |
0x0100003E | INTERNAL_FAULT | Error | Internal fault detected; unit will restart to attempt recovery. If the issue persists, update Firmware to the latest version. Contact Ouster Support if the above steps don’t resolve the Alert. | Restart |
0x0100003F | INTERNAL_COMM | Error | Unit has experienced an internal COMM error; Unit is in Error Stopped(Shutdown) state. Please contact Ouster Support. | Shutdown |
0x01000040 | INTERNAL_FAULT | Error | Unit has experienced an internal COMM error; Unit is in Error Stopped(Shutdown) state. Please contact Ouster Support. | Shutdown |
0x01000041 | INTERNAL_COMM | Warning | Unit has experienced an internal COMM warning: some measurements may have been skipped. | No Action |
0x01000042 | INTERNAL_COMM | Error | Unit has experienced an internal COMM error; please contact Ouster Support. | No Action |
0x01000043 | INTERNAL_FW | Error | Unit has experienced a startup error; please contact Ouster Support. | Shutdown |
0x01000044 | INTERNAL_FW | Error | Unit has experienced a startup error; please contact Ouster Support. | Shutdown |
0x01000045 | INTERNAL_FW | Error | Unit has experienced a startup error; please contact Ouster Support. | Shutdown |
0x01000046 | INTERNAL_FW | Error | Unit has experienced a startup error; please contact Ouster Support. | Shutdown |
0x01000047 | INTERNAL_FW | Error | Unit has experienced a startup error; please contact Ouster Support. | Shutdown |
0x01000048 | INTERNAL_FW | Error | Unit has experienced a startup error; please contact Ouster Support. | Shutdown |
0x01000049 | INTERNAL_FW | Error | Unit has experienced a startup error; please contact Ouster Support. | Shutdown |
0x0100004A | STARTUP | Error | Unit has experienced a startup error; please contact Ouster Support. | Shutdown |
0x0100004B | STARTUP | Error | Unit has experienced a startup error; please contact Ouster Support. | Shutdown |
0x0100004C | INTERNAL_FAULT | Error | Internal fault detected; unit going to error stop state. | Shutdown |
0x0100004D | INTERNAL_FAULT | Error | Internal fault detected; unit going to error stop state. | Shutdown |
0x0100004E | WARMUP_ISSUE | Warning | Sensor warmup process is taking longer than expected; please ensure sensor is thermally constrained per requirements. | Restart |
0x0100004F | WARMUP_ISSUE | Warning | Sensor warmup process is taking longer than expected; please ensure sensor is thermally constrained per requirements. | Restart |
0x01000050 | MOTOR_CONTROL | Warning | The 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 |
0x01000051 | MOTOR_CONTROL | Error | The phase lock control failed to achieve a lock multiple times; Check that the time source is accurate. | No Action |
0x01000052 | CONFIG | Error | Configuration value is invalid or out of bounds. Unit is shutting down. Try resetting the sensor configuration. | Shutdown |
0x01000053 | WARMUP_ISSUE | Error | Sensor warmup process has failed. Unit is shutting down. Check the sensor operating conditions are within operating bounds. | Shutdown |
0x01000054 | INTERNAL_FAULT | Notice | Unexpected hardware configuration detected. Please contact Ouster Support. | No Action |
0x01000055 | UDP_TRANSMISSION | Warning | Unit 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 |
0x01000056 | INTERNAL_FAULT | Error | Internal fault detected; unit will restart to attempt recovery. | Restart |
0x01000057 | OVERTEMP | Warning | Sensor temperature is too high. Sensor could have degraded range performance. | No Action |
0x01000058 | OVERTEMP | Error | Sensor temperature is too high; unit going to error stop state (Shutdown). | Shutdown |
0x01000059 | INTERNAL_FAULT | Warning | Internal fault detected; unit will restart to attempt recovery. | Restart |
0x0100005A | INTERNAL_FAULT | Warning | Unit has experienced an internal COMM warning: some measurements may have been skipped. Check sensor operating conditions. | No Action |
0x0100005B | INTERNAL_FAULT | Warning | Unit has experienced an internal COMM warning: some measurements may have been skipped. Check sensor operating conditions. | No Action |
0x0100005C | INTERNAL_FAULT | Warning | Unit has experienced an internal COMM warning: some measurements may have been skipped. Check sensor operating conditions. | No Action |
0x0100005D | INTERNAL_FAULT | Warning | Internal 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 |
0x0100005E | INTERNAL_FAULT | Warning | Unit has experienced an overcurrent event; unit will restart to attempt recovery. | Restart |
0x0100005F | IO_CONNECTION | Warning | Unit has stopped receiving SYNC_PULSE_IN signals and is configured to expect them. Check electrical inputs to sensor. | No Action |
0x01000060 | IO_CONNECTION | Warning | Unit has stopped receiving NMEA messages at the MULTIPURPOSE_IO port and is configured to expect them. Check electrical inputs to sensor. | No Action |
0x01000061 | INTERNAL_COMM | Error | Unit has experienced an internal COMM error Unit will restart to attempt recovery. | Restart |
0x01000062 | INTERNAL_FAULT | Error | Unit has experienced a internal error; Unit is in Error stopped state. Please contact Ouster Support. | No Action |
0x01000063 | MOTOR_CONTROL | Warning | Unit is spinning outside of tolerant range; Check sensor operating conditions. | No Action |
0x01000064 | MOTOR_CONTROL | Error | Unit failed to maintain target spin rate; please contact Ouster Support. | No Action |
0x01000065 | MOTOR_CONTROL | Error | Unit has experienced a internal error; Unit is in Error stopped state. Please contact Ouster Support. | No Action |
0x01000066 | MOTOR_CONTROL | Error | Unit has experienced a startup error; Unit is in Error stopped state. Please contact Ouster Support. | Shutdown |
0x01000067 | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is in Error stopped state. Please contact Ouster Support. | Shutdown |
0x01000068 | INTERNAL_FW | Error | Unit has experienced a startup error; Unit is in Error stopped state. Please contact Ouster Support. | Shutdown |
0x01000069 | MOTOR_CONTROL | Warning | Unit is spinning outside of tolerant range; Check sensor operating conditions. Please contact Ouster Support. | No Action |
0x0100006A | MOTOR_CONTROL | Warning | Unit is spinning outside of tolerant range; Check sensor operating conditions. Please contact Ouster Support. | No Action |
0x0100006B | OVERTEMP | Error | Unit has shut down due to overheating. Please contact Ouster Support. | Shutdown |
0x0100006C | INTERNAL_FAULT | Warning | Unit 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 |
0x0100006D | INTERNAL_FAULT | Warning | Unit 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 |
0x0100006E | INTERNAL_FAULT | Warning | Unit 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 |
0x0100006F | INTERNAL_FAULT | Warning | Unit 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 |
0x01000070 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000071 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000072 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000073 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000074 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000075 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000076 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000077 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000078 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000079 | INTERNAL_FAULT | Warning | Unit 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 |
0x0100007A | INTERNAL_FAULT | Warning | Unit 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 |
0x0100007B | INTERNAL_FAULT | Warning | Unit 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 |
0x0100007C | INTERNAL_FAULT | Warning | Unit 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 |
0x0100007D | INTERNAL_FAULT | Warning | Unit 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 |
0x0100007E | INTERNAL_FAULT | Warning | Unit 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 |
0x0100007F | INTERNAL_FAULT | Warning | Unit 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 |
0x01000080 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000081 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000082 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000083 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000084 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000085 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000086 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000087 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000088 | CONFIG | Notice | Please note all commands in the TCP API are in planned obsolescence and are subject to deprecation shortly. Please consider using the HTTP API instead. Please refer to Firmware User Manual for more information or contact Ouster Support | No Action |
0x01000089 | CONFIG | Notice | Please note that the LEGACY profile option of config parameter udp_profile_lidar is in planned obsolescence. Please consider using a different option for the config parameter. LEGACY profile is subject to deprecation shortly. Please refer to Firmware User Manual for more information or contact Ouster Support | No Action |
0x0100008A | INTERNAL_FAULT | Warning | Unit 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 |
0x0100008B | INTERNAL_FAULT | Warning | Unit 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 |
0x0100008C | INTERNAL_FAULT | Warning | Unit 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 |
0x0100008D | INTERNAL_FAULT | Warning | Unit 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 |
0x0100008E | INTERNAL_FAULT | Warning | Unit 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 |
0x0100008F | INTERNAL_FAULT | Warning | Unit 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 |
0x01000090 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000091 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000092 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000093 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000094 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000095 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000096 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000097 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000098 | INTERNAL_FAULT | Warning | Unit 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 |
0x01000099 | INTERNAL_FAULT | Warning | Unit 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 |
0x0100009A | INTERNAL_FAULT | Warning | Unit 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 |
0x0100009B | INTERNAL_FAULT | Warning | Unit 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 |
0x0100009C | INTERNAL_FAULT | Warning | Unit 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 |
0x0100009D | CONFIG | Notice | Setting 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 with a copy of the diagnostics file. | No Action |
0x0100009E | INTERNAL_FAULT | Error | Unit 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 |
0x0100009F | INTERNAL_FAULT | Error | Unit 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 |
0x010000A0 | INTERNAL_COMM | Error | Unit has experienced an internal COMM warning. If the issue persists, update to the latest FW. Contact Ouster Support if the above steps do not resolve the alert with Diagnostic file. | No Action |
0x010000A1 | UNDERTEMP | Warning | Unit temperature is too low, this 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 |
0x010000A2 | INTERNAL_FAULT | Warning | Unit 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 |
0x010000A3 | INTERNAL_FAULT | Warning | Unit 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 |
0x010000A4 | INTERNAL_FAULT | Error | Unit 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. | Restart |
0x010000A5 | CONFIG | Notice | When ‘Minimum Range (cm)’ is less than 50cm, Ouster recommends setting ‘Return Order’ to FARTHEST_TO_NEAREST. Please refer to Ouster Firmware User Manual for more information. | No Action |
0x010000A6 | UDP_TRANSMISSION | Warning | Could not send lidar UDP data packet for more than 500 ms. This may occur if the network was unreachable. | No Action |
0x010000A7 | UDP_TRANSMISSION | Warning | Could not send IMU UDP data packet for more than 500 ms. This may occur if the network was unreachable. | No Action |
0x010000A8 | STARTUP | Error | Unit has experienced an internal error during startup. | Shutdown |
0x010000A9 | WARMUP_ISSUE | Warning | Sensor startup will be delayed until the sensor reaches its minimum operating temperature. Please refer to Firmware User Manual for more information. | No Action |
0x010000AA | CONFIG | Notice | Please 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 |
0x010000AB | STARTUP | Error | Unit has experienced an internal warning during startup and is restarting. | Shutdown |
0x010000AC | UDP_CONNECT | Warning | Couldn’t open Zone Monitor UDP socket; please contact Ouster Support. | No Action |
0x010000AD | UDP_CONNECT | Warning | Couldn’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 |
0x010000AE | UDP_CONNECT | Warning | Invalid UDP port number; check network and udp_port_zm. | No Action |
0x010000AF | UDP_CONNECT | Warning | Couldn’t reach destination client for Zone Monitor data; verify cabling, network address configuration, and subnet mask if using static IP override. | No Action |
0x010000B0 | UDP_TRANSMISSION | Warning | Client 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 |
0x010000B1 | UDP_TRANSMISSION | Warning | Could not send Zone Monitor UDP packet to host; check that network is up and the destination is reachable. | No Action |
0x010000B2 | UDP_TRANSMISSION | Warning | Received an unknown error when trying to send Zone Monitor UDP packet; closing socket. | No Action |
0x010000B3 | UDP_TRANSMISSION | Warning | Could not send Zone Monitor UDP data packet for more than 500 ms. This may occur if the network was unreachable. | No Action |
0x010000B4 | CONFIG | Error | Error occurred initializing Zone Monitor with given configuration. | Shutdown |
0x010000B5 | STARTUP | Error | Unit has experienced an internal warning during startup and is restarting. | Shutdown |
0x010000B6 | STARTUP | Error | Error occurred while starting Zone Monitor. | Shutdown |
0x010000B7 | INTERNAL_FAULT | Error | Unit 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. | Shutdown |
0x010000B8 | INTERNAL_FAULT | Error | Unit 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 |
0x010000B9 | INTERNAL_COMM | Error | Unit has experienced an internal COMM error. Unit will restart to attempt recovery. | Restart |

