Mitsubishi Electric MELSEC iQ-R-R04CPU - System Information

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APPX
Appendix 4 List of Special Relay Areas
System information
The following is the list of special relay areas relating to the system information.
No. Name Data stored Details Set by (setting timing) CPU
SM203 STOP contact Off: Other than STOP state
On: STOP state
This relay is on in STOP state. S (Status change) ALL
SM204 PAUSE contact Off: Other than PAUSE
state
On: PAUSE state
This relay is on in PAUSE state. Note that
this relay is on during the END processing of
the scan which the specified PAUSE contact
turns on if PAUSE state is generated at the
PAUSE contact.
S (Status change) ALL
SM210 Clock data set request OffOn:setting request is
detected
OnOff:setting is completed
• Clock data stored in SD210 to SD216 is
written into the CPU module when this
relay is switched from off to on.
• This relay switches from on to off when
writing of clock data stored in SD210 to
SD216 into the clock element is
completed.
U/S (Status change) ALL
SM211 Clock data set error Off: No error
On: Error
This relay switches to on when an error is
generated in values from SD210 to SD216,
and to off when no error is generated.
S (Request) ALL
SM213 Clock data read request Off: Non-processing
On: Reading request
Clock data is loaded into SD210 to SD216
when this relay is in the ON state.
UALL
SM217 Daylight saving time status
flag
Off: Not during daylight
saving time
On: During daylight saving
time
Turns on if during daylight saving time with
daylight saving time function. Turns off if not
during daylight saving time.
S (Status change) Rn
*1
SM220 CPU No.1 preparation
completed
Off: Not completed
On: Completed
• This relay switches to on at the time when
access from the CPU module on other
CPUs to the CPU module for CPU No. n
is enabled during power-on or resetting.
• This relay is used as an interlock to
access the CPU module for the CPU No.
n when the multiple CPU synchronization
setting is configured to asynchronous
mode.
S (Status change) ALL
SM221 CPU No.2 preparation
completed
ALL
SM222 CPU No.3 preparation
completed
ALL
SM223 CPU No.4 preparation
completed
ALL
SM230 No.1 CPU error flag Off: CPU No.n normal
On: CPU No.n stop error
state
• This relay is off when the CPU module for
the CPU No.n is normal (including a
continuation error period).
• This relay is on when the CPU module for
the CPU No.n is in stop error state.
S (Status change) ALL
SM231 No.2 CPU error flag ALL
SM232 No.3 CPU error flag ALL
SM233 No.4 CPU error flag ALL