# CHASSISD_I2CS_READBACK_ERROR

## Canonical Reference

[CHASSISD_I2CS_READBACK_ERROR](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR)

**Canonical URL:**  
https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR

## SYSLOG Details
- **Message**: The chassis process (hwd) could not read back information from the I2C slave (I2CS) about the indicated component: <variable>fru-name</variable>, <variable>fru-slot</variable>, <variable>i2cs-address</variable>, <variable>offset</variable>
- **Help**: Error occurred during I2CS readback
- **Description**: The chassis process (hwd) could not read back information from the I2C slave (I2CS) about the indicated component (field-replaceable unit, or FRU).
- **Type**: Error: An error occurred
- **Severity**: error
- **Cause**: The probable cause is hardware error.
- **Action**: Contact your technical support representative.
- **Attributes**: fru-name
fru-slot
i2cs-address
offset
error-code
- **Facility**: LOG_DAEMON

## Found this message in the following releases:
- [Junos OS 26.2R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=26.2R1)
- [Junos OS 25.4R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=25.4R1)
- [Junos OS 25.2R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=25.2R2)
- [Junos OS 25.2R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=25.2R1)
- [Junos OS 24.4R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=24.4R2)
- [Junos OS 24.4R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=24.4R1)
- [Junos OS 24.2R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=24.2R2)
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=23.4R2)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=23.4R1)
- [Junos OS 23.2R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=23.2R2)
- [Junos OS 23.2R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=23.2R1)
- [Junos OS 22.4R3](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=22.4R3)
- [Junos OS 22.4R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=22.4R2)
- [Junos OS 22.4R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=22.4R1)
- [Junos OS 22.2R3](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=22.2R3)
- [Junos OS 22.2R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=22.2R2)
- [Junos OS 22.2R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS&rel=22.2R1)
- [Junos OS Evolved 26.2R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=26.2R1)
- [Junos OS Evolved 25.4R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=25.4R1)
- [Junos OS Evolved 25.2R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=25.2R2)
- [Junos OS Evolved 25.2R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=25.2R1)
- [Junos OS Evolved 24.4R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=24.4R2)
- [Junos OS Evolved 24.4R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=24.4R1)
- [Junos OS Evolved 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=24.2R1)
- [Junos OS Evolved 23.4R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=23.4R2)
- [Junos OS Evolved 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=23.4R1)
- [Junos OS Evolved 23.2R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=23.2R2)
- [Junos OS Evolved 23.2R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=23.2R1)
- [Junos OS Evolved 22.4R3](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=22.4R3)
- [Junos OS Evolved 22.4R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=22.4R2)
- [Junos OS Evolved 22.4R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=22.4R1)
- [Junos OS Evolved 22.2R3](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=22.2R3)
- [Junos OS Evolved 22.2R2](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=22.2R2)
- [Junos OS Evolved 22.2R1](https://apps.juniper.net/syslog-explorer/?msg=CHASSISD_I2CS_READBACK_ERROR&sw=Junos%20OS%20Evolved&rel=22.2R1)