Mitsubishi MELSEC L Series User Manual page 248

(1) Diagnostic information
Number Name
SM0 Diagnostic errors
Self-diagnostic
SM1
error
Error common
SM5
information
Error individual
SM16
information
SM50 Error reset
SM51 Battery low latch
SM52 Battery low
246
Meaning
• This relay turns on if an error is detected by
diagnostics. (Also turns on if an error is
detected by an annunciator or the CHK
instruction.)
• This relay remains on even after the system
OFF : No error
returns to normal.
ON : Error
• This relay turns on if an error is detected by
diagnostics. (Also turns on if an error is
detected by an annunciator.)
• This relay remains on even after the system
returns to normal.
• This relay turns on if an error is detected by
self-diagnostics. (Remains off if an error is
detected by an annunciator or the CHK
instruction.)
• This relay remains on even after the system
OFF : No self-diagnosis
returns to normal.
errors
ON : Self-diagnosis
• This relay turns on if an error is detected by
self-diagnostics. (Remains off if an error is
detected by an annunciator.)
• This relay remains on even after the system
returns to normal.
OFF : No error common
information This relay turns on if error common information
ON : Error common data exists when SM0 turns on.
information
OFF : No error
individual
This relay turns on if error individual
information
information data exists when SM0 turns on.
ON : Error individual
information
OFF→ON: Error reset Conducts error reset operation
• This relay turns on if the battery voltage of
the CPU module or the memory card drops
below the rated value.
• This relay remains on even after the battery
voltage returns to normal.
• Synchronizes with the BAT. LED.
OFF : Normal
ON : Battery low
• This relay turns on if the battery voltage of
the CPU module drops below the rated
value.
• This relay remains on even after the battery
voltage returns to normal.
• Synchronous with the ERR. LED.
• This relay has the same specifications as
OFF : Normal
those of SM51 except that this relay turns off
ON : Battery low
after the battery voltage returns to normal.
Explanation
Corre-
sponding
Set by Corresponding
(When Set) ACPU
M9
New
Q00J/Q00/Q01
M9008
S (Error)
Q00J/Q00/Q01
New
U
M9007
S (Error)
New Q00J/Q00/Q01
M9006
CPU
Qn(H)
QnPH
QnPRH
QnU
LCPU
Qn(H)
QnPH
QnPRH
QnU
LCPU
QCPU
LCPU
Qn(H)
QnPH
QnPRH
QnU
LCPU
QCPU
LCPU