Omron CJ1W-FLN22, Operation Manual, Page: 178 / 277

Troubleshooting Procedures Section 10-4
152
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 zeros
in the year 2000.
3. The battery must be installed in the CS-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.
10-4 Troubleshooting Procedures
The following procedures can be used to troubleshoot various problems in
system operation.
10-4-1 Startup Problems
0300 Parameter error; packet discarded Commands
Bit 15: OFF
Bits 08 to 14: SNA
Bits 00 to 07: SA1
Responses
Bit 15:
ON
Bits 08 to 14: DNA
Bits 00 to 07: DA1
Check the command format and
set the correct command data. ---
0601 CPU Bus Unit error Arbitrary Restart the CPU Unit. If the prob-
lem persists, replace the FL-net
(Ver. 2.00) 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 FL-net
(Ver. 2.00) Unit. Saved
(except
for error
log)
Error
code
Meaning Detailed error code Correction EE-
PROM
1st byte 2nd byte
RUN HER PER P/S Probable cause Correction
Not lit Not lit Not lit Not lit Power is not being supplied to the CPU Unit
or the power supply voltage is too low.
Supply power.
Make sure that the correct voltage is being
supplied.
The mounting screws on the FL-net Unit
are loose. Tighten the screws on the FL-net Unit.
An error occurred in the FL-net Unit. Restart the PLC. If the problem persists,
replace the FL-net Unit.
Not lit --- Lit --- The same unit number is being used on
another Unit as well. Correct the unit number setting and restart
the PLC.
The FL-net Unit is not registered in an I/O
table. Use a CX-Programmer or Programming
Console to create a new I/O table.
Not lit Lit --- --- The node address is set outside the range. Set the node number to between 01 and F9
Hex and restart the PLC.
An error occurred in the FL-net Unit. Restart the PLC. If the problem persists,
replace the FL-net Unit.