6 Troubleshooting
6-14
CP1E CPU Unit Hardware User’s Manual(W479)
Reference
CPU Unit Indicators
: Not lit : Flashing : Lit
Built-in Analog Errors (Only for NA-type)
Cause Remedy
For NA-type, when a built-in analog I/O error occurs. Restart the PLC .If this error still exists, please change unit.
Error flag
Built-in analog error, A315.14
Other error flag, A402.00
Error code 008A
Error information Built-in analog I/O error details, A434
6-1-11 Other Errors
Communications Errors
Cause Remedy
An error has occurred in the communications
between the peripheral USB port and connected
device.
• Check the cable wiring.
• Check the USB cable and replace it if necessary.
An error has occurred in the communications
between the serial port and connected device.
• Confirm that the serial port 1/2 settings in the PLC Setup
are correct.
• Check the cable wiring.
• If a host computer is connected, check the serial port
settings and program in the host computer.
POWER
RUN
INH
PRPHL
BKUP
ERR/AL
—: Irrelevant
POWER
RUN
ERR/ALM
INH
PRPHL
BKUP
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