Omron CS1W-ETN21 - Manual (Page 233)

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Error Log Section 8-3
Note (1) The time information in the CPU Unit is used in the CPU Bus Units.
(2) If the time information cannot be read from the CPU Unit, the time stamp
in the error log will be all zeros. This can occur due to CPU Unit startup
error, unit number errors, CPU error, and model number errors. If the time
is read out from a Programming Device, the time will be shown as all ze-
ros in the year 2000.
(3) The battery must be installed in the CS/CJ-series CPU Unit, the power
turned ON, and then the time set before the clock in the CPU Unit can be
used. The time will not be set correctly in the error log unless the clock
time is set correctly.
(4) An error record is not created in EEPROM when a CPU Bus Unit memory
error occurs.
0601 CPU Bus Unit error Arbitrary Restart the CPU Unit. If the prob-
lem persists, replace the Ethernet
Unit. Saved
0602 CPU Bus Unit memory error 01: Read
error
02: Write
error
06: Error log Restart the CPU Unit. If the prob-
lem persists, replace the Ethernet
Unit. Saved
(except
for error
log)
Error
code
Meaning Detailed error code Correction EE-
PROM
1st byte 2nd byte