Mitsubishi L02CPU User Manual

147
CHAPTER 3 CPU MODULE FUNCTIONS
3
3.23 Self-Diagnostic Function
(6) Self-diagnostics list
: Self-diagnostics is performed. ×: Self-diagnostics is not performed.
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Diagnostics
Error
message
Diagnostic timing
CPU
module
status
LED status
L02CPU
L26CPU
-BT
RUN ERR.
Hardware
failure
CPU error
CPU UNIT
DOWN
• Always Stop Off Flashing
END instruction not
executed
END NOT
EXECUTE
• Execution of the END
instruction
Stop Off Flashing
SFC program execution
error
SFCP. END
ERROR
• Execution of a SFC program Stop Off Flashing
RAM check RAM ERROR • Power-on/reset Stop Off Flashing
Operation circuit check
OPE.CIRCUIT
ERR.
• Power-on/reset
• Execution of the END
instruction
Stop Off Flashing
I/O interrupt error I/O INT. ERROR • Occurrence of an interrupt Stop Off Flashing
LAN controller failure
LAN CTRL.
DOWN
• Power-on/reset Stop Off Flashing × ×
Intelligent function module
error
*1
SP.UNIT DOWN
• Power-on/reset
• Execution of the FROM/TO
instructions
• Execution of the intelligent
function module dedicated
instruction
• Execution of the END
instruction
Stop/
Continue
Off/On
Flashing/
On
System bus error
•BUS
TIMEOUT
ERR.
• UNIT BUS
ERR.
• SYSTEM RST
ERR.
• Powered-on
• Execution of END processing
• Execution of the FROM/TO
instructions
• Execution of the intelligent
function module dedicated
instruction
• Always
Stop Off Flashing
End cover error
END COVER
ERR.
• Powered-on
• Execution of END processing
• Always
Stop Off Flashing
Momentary power failure AC/DC DOWN • Always Continue On Off
Flash ROM error
FLASH ROM
ERROR
• Writing to ROM Continue On On

Mitsubishi L02CPU Specifications

General

Brand	Mitsubishi
Model	L02CPU
Category	Controller
Language	English