Mitsubishi QJ71LP21 Reference Manual page 334

8 TROUBLESHOOTING
Error
Error
Code
Messages
*1
(SD0)
4500
4501
4502
4503
SFCP.
FORMAT
ERR.
4504
4505
4506
4600
4601 SFCP. OPE.
ERROR
4602
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*2 The CPU module operation status when an error occurs can be set at the parameters. (LED display will
:
change accordingly.)
8 - 123
Common Individual
Information Information
(SD5 to 15) (SD16 to 26)
Program error
----
location
Program error
----
location
LED Status Operating
Statuses
RUN ERROR
of CPU
Off Flicker Stop
Off/ Flicker/ Stop/
On On Continue
MELSEC-Q
Diagnostic
Timing
STOP RUN
When
instruction
*2
executed.
8 - 123