Diagnostic Information - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

Diagnostic information

The following is the list of special rely areas relating to the diagnostic information.
No. Name
SM0 Latest self-diagnostic error
(including annunciator ON)
SM1 Latest self-diagnostic error
(not including annunciator
ON)
SM50 Error reset
SM51 Battery low latch
SM52 Battery low
SM53 AC/DC DOWN
SM56 Instruction execution fault
SM60 Fuse Blown
SM61 I/O module verification error
SM62 Annunciator
APPX
804
Appendix 4 List of Special Relay Areas
Data stored Details
Off: No error • This relay turns on when the self-
On: Error
• The ON state is maintained even after the
Off: No error • This relay turns on when the self-
On: Error
• The ON state is maintained even after the
• This relay does not turn on when errors
OffOn:Error reset request • This relay clears the error state when the
OnOff:Error reset
complete • This relay switches from on to off when
Off: Normal • This relay switches to on when the battery
On: Battery low
• The ON state is maintained even after the
• This relay synchronizes with BAT LED.
Off: Normal This relay has the same function as SM51
On: Battery low except for switching to off after the battery
voltage has been recovered to a normal
value.
Off: No AC/DC DOWN • This relay switches to on when a
detection
On: AC/DC DOWN is
detected
• This relay switches to on when a
Off: Normal • This relay switches to on when an error
On: Instruction execution
fault state
• The ON state is maintained even after the
Off: Normal • This relay is on when at least one output
On: Fuse blown is
detected
• The fuse blown state check is also done
Off: Normal • This relay switches to on when the state
On: Error
• I/O module verification is also done for
Off: Not detected • This relay switches to on when at least
On: Detected
• This relay returns to off when all the
diagnostics returns an error (including the
case when an error is detected by turning
the annunciator ON).
error has been later cleared.
diagnostics returns an error (not including
the case when an error is detected by
turning the annunciator ON).
error has been later cleared.
that are notified by the PALERT
instruction or the PABORT instruction.
mode transfers from off to on.
the error reset has been completed.
voltage of the CPU module drops below
the specified value.
battery voltage has been later recovered
to the normal value.
momentary power failure within 20ms is
detected while the AC power supply
module is in use. This relay can be reset
when power is turned off and on.
momentary power failure within 10ms is
detected while the DC power supply
module is in use. This relay can be reset
when power is turned off and on.
which can be classified as instruction
execution fault is returned.
error has been later cleared.
module is in fuse blown state and the ON
state is maintained even after later
recovering to the normal state.
for output modules on the remote I/O
station.
of the I/O module is different from one
registered during power-on, and the ON
state is maintained even after later
recovering to the normal state.
modules on the remote I/O station.
one annunciator is turned on.
annunciators are turned off.
Set by (setting timing) CPU
S (Error) ALL
S (Error) ALL
U/S (Status change) ALL
S (Error) ALL
S (Error) ALL
S (Error) ALL
S (Error) ALL
S (Error) ALL
S (Error) ALL
S (Instruction execution) ALL