Troubleshooting Cpu Unit Errors; Errors And Remedies; Checking Errors - Omron CP1E Series User Manual

6 Troubleshooting
6-1

Troubleshooting CPU Unit Errors

This section describes how to troubleshoot errors that occur in the CP1E CPU Units.
6-1-1

Errors and Remedies

Use the following procedure when an error occurs.
Implement countermeasures
6-1-2

Checking Errors

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.
Checking the Indicators
POWER:
POWER
RUN:
RUN
ERR/ALM: Shows the results of
ERR/ALM
INH:
INH
PRPHL:
PRPHL
BKUP:
BKUP
COMM
6-2
Error occurs
· · ·
Check the indicators
· · ·
Identify the error
· · ·
End
Power supply
RUN or MONITOR mode
self-diagnosis.
Outputs OFF
Peripheral USB port
communications
Writing to backup memory
(built-in EEPROM)
COMM: Built-in RS232C port
communications
Check the indicators on the front of the CPU Unit or use the CX-
Programmer to read the error status.
Identify the error from the indicators(
Errors) or use the CX-Programmer to read the error status.
Take measures to eliminate the error that occurred and to
prevent it from occurring again.
Green
Green
Red
Yellow
—
Yellow
—
Yellow
—
— —
Status Normal operation
Operation is
stopped in
PROGRAM
mode
CP1E CPU Unit Hardware User's Manual(W479)
refer to 6-1-5 Types of
: Not lit : Flashing
— — —
— — —
— — —
— —
A non-fatal A fatal error
error has has occurred
occurred
: Lit