Troubleshooting 4417 DEVICE_ERR_NOADDR_I2C errors seen in Controller's Error Log.
"DEVICE_ERR_NOADDR_I2C" errors are related to the internal bus to the peripherals and RealTimeClock.
Possible causes can be:
1. A defect with the onboard RealTimeClock. Check for 4417 errors followed by TimeSync errors and/or indications that the time clock is not stable similar to the following error lines.
01/01/1989 00:00:00.00 0x00004417 DEVICE_ERR_NOADDR_I2C (no address response)
01/01/1989 00:00:00.00 0x00010000 Clock change
2. An issue with the expansion bus modules. There may have been an expansion module installed that has been removed while a PE program is still accessing an I/O on the module.