Mitsubishi Q2ACPU User Manual page 163

9. MAINTENANCE FUNCTION
Diagnosis Item
Instruction code check
No END instruction
Pointer setting error
Pointer setting error
Operation error
*1
(Default stop)
FOR-NEXT instruction
configuration error
CALL-RET instruction
configuration error
Interrupt program error
Unable to execute instruction
Extended instruction error
*1
(Default stop)
SFC program configuration
error
SFC block configuration error
SFC step configuration error
SFC syntax error
SFC operation check error
*1
(Default stop)
SFC program execution error
SFC block execution error
SFC step execution error
Watchdog error supervision
Program timeout
Annunciator check
CHK instruction check
Self-diagnostics list(Continued)
Diagnosis Timing
• When power is ON or RESET
• When switching from STOP to RUN
• When power is ON or RESET
• When switching from STOP to RUN
• When power is ON or RESET
• When switching from STOP to RUN
• When power is ON or RESET
• When switching from STOP to RUN
When executing each instruction
When executing each instruction
When executing each instruction
When executing each instruction
When executing each instruction
When executing each instruction
When switching from STOP to RUN
When switching from STOP to RUN
When switching from STOP to RUN
When switching from STOP to RUN
When executing each instruction
When switching from STOP to RUN
When executing each instruction
When executing each instruction
Always
Always
When executing each instruction
When executing each instruction
*1 Can be changed to operation continues by GPP function parameter setting.
*4 The detected annunciator number is displayed at ****.
*5 The detected contact and coil numbers are displayed at ***.
LED Status
CPU Module
Status
RUN
Stop OFF
Stop OFF
Stop OFF
Stop OFF
Stop/
OFF/ON
Continue
Stop OFF
Stop OFF
Stop OFF
Stop OFF
Stop/
OFF/ON
Continue
Stop OFF
Stop OFF
Stop OFF
Stop OFF
Stop/
OFF/ON
Continue
Continue ON
Stop OFF
Stop OFF
Stop OFF
Continue ON
Continue ON
Continue ON
9 - 7
LED Indicator Message
(Q3A/Q4ACPU Only)
ERROR
Flickers INSTRCT CODE ERR.
Flickers MISSING END INS.
Flickers CAN'T SET(P)
Flickers CAN'T SET(I)
Flickering/
OPERATION ERROR
ON
Flickers FOR-NEXT ERROR
Flickers CAN'T EXECUTE(P)
Flickers CAN'T EXECUTE(I)
Flickers INST.FORMAT ERR.
Flickering/
EXTEND INST.ERR.
ON
Flickers SFCP.CODE ERROR
Flickers CAN'T SET(BL)
Flickers CAN'T SET(S)
Flickers SFCP.FORMAT ERR.
Flickering/
SFCP.OPE.ERROR
ON
ON SFCP.EXE.ERROR
Flickers BLOCK EXE.ERROR
Flickers STEP EXE.ERROR
Flickers WDT ERROR
ON PRG.TIME OVER
*4
OFF
F****
<CHK>ERR
OFF
–5
***-***