Omron CP1E-E10DT-A, User Manual

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6 Troubleshooting
6-2 CP1E CPU Unit Hardware User’s Manual(W479)
6-1 Troubleshooting CPU Unit Errors
This section describes how to troubleshoot errors that occur in the CP1E CPU Units.
Use the following procedure when an error occurs.
The type of error that occurred can be determined by checking the indicators on the front of the CPU
Unit or by using the CX-Programmer.
Refer to 6-1-5 Types of Errors for details on the types of error status.
: Not lit : Flashing : Lit
6-1-1 Errors and Remedies
6-1-2 Checking Errors
Checking the Indicators
· · ·
· · ·
· · ·
Check the indicators
End
Error occurs
Implement countermeasures
Identify the error
Take measures to eliminate the error that occurred and to
prevent it from occurring again.
Identify the error from the indicators(refer to 6-1-5 Types of Errors)
or use the CX-Programmer to read the error status.
Check the indicators on the front of the CPU Unit or use the CX-
Programmer to read the error status.
POWER: Power supply
Green
Green
ERR/ALM: Shows the results of
self-diagnosis.
Red
INH: Outputs OFF
Yellow
PRPHL: Peripheral USB port
communications
Yellow
BKUP: Writing to backup memory
(built-in EEPROM)
Yellow
Status Normal operation
RUN: RUN or MONITOR mode
Operation is
stopped in
PROGRAM
mode A non-fatal
error has
occurred A fatal error
has occurred
— — — —
— — — —
— — — —
COMM: Built-in RS232C port
communications
RS485: Built-in RS485 port
communications
(N
S1-type CPU Unit only)
POWER
RUN
INH
PRPHL
BKUP
ERR/ALM
— — — —
— — — —
COMM
(RS232C)
E/N S(1) E/N/NA
POWER
RUN
ERR/ALM
INH
PRPHL
BKUP
RS232C
RS485