Mitsubishi Q00JCPU User Manual page 347

6
FUNCTIONS
Diagnosics
*1
Operation error
FOR to NEXT
instruction structure
error
CALL to RET
instruction structure
error
Interrupt program
error
Instruction execution
not possible
SFC program
structure error
Program
error
SFC block structure
error
SFC step structure
error
SFC syntax error
SFC operation
*1
check error
SFC program
execution error
SFC block execution
error
SFC step execution
error
Watchdog error
supervision
PLC error
Program time
exceeded
Table6.29 Self-dianostics list (Continued)
Error message Diagnostics timing
• When an
OPERATION
instruction is
ERROR
executed
• When an
FOR NEXT
instruction is
ERROR
executed
• When an
CAN'T
instruction is
EXECUTE(P)
executed
• When an
CAN'T
instruction is
EXECUTE(I)
executed
• When an
INST.FORMAT
instruction is
ERR.
executed
SFCP.CODE • When switched
ERROR from STOP to RUN
• When switched
CAN'T SET(BL)
from STOP to RUN
• When switched
CAN'T SET(S)
from STOP to RUN
SFCP. FORMAT • When switched
ERR. from STOP to RUN
• When an
SFCP.OPE.
instruction is
ERROR
executed
SFCP.EXE. • When switched
ERROR from STOP to RUN
• When an
BLOCK
instruction is
EXE.ERROR
executed
• When an
STEP
instruction is
EXE.ERROR
executed
WDT ERROR • Always
PRG.TIME OVER • Always
* 1 : Can be changed to "Continue" in the parameter setting of GX Developer.
CPU LED status
module
RUN
status
STOP/
OFF/ON
Continue
STOP OFF
STOP OFF
STOP OFF
STOP OFF
STOP OFF
STOP OFF
STOP OFF
STOP OFF
STOP/
OFF/ON
Continue
Continue ON
STOP OFF
STOP OFF
STOP OFF
Continue ON
: Self-diagnostics is performed
6.17 Self-diagnostics Function
CPU module
ERR. 1) 2) 3) 4)
Flicker/ON
Flicker
Flicker
Flicker
Flicker
Flicker
Flicker
Flicker
Flicker
Flicker/ON
ON
Flicker
Flicker
Flicker
ON
: Self-diagnostics is not performed
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