Mitsubishi Electric MELSEC iQ-R Series - System Information

APPX
Appendix 4 List of Special Relay Areas
649
A
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)
SM203 STOP contact Off: Other than STOP state
On: STOP state
This relay is on in STOP state. S (Status change)
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)
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)
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)
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.
U
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)
SM221 CPU No.2 preparation
completed
SM222 CPU No.3 preparation
completed
SM223 CPU No.4 preparation
completed
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)
SM231 No.2 CPU error flag
SM232 No.3 CPU error flag
SM233 No.4 CPU error flag
SM240 No.1 CPU reset flag Off: CPU No.n not being
reset
On: CPU No.n in reset mode
• This relay switches to off when the CPU module of the CPU
No.1 is not being reset.
• This relay is on while the CPU module of the CPU No.1 is
being reset (including the case when the CPU module is
removed from the base unit). Other CPUs also enter into
reset mode.
S (Status change)
SM241 No.2 CPU reset flag • This relay switches to off when the CPU module of the CPU
No.2 is not being reset.
• This relay is on while the CPU module of the CPU No.2 is
being reset (including the case when the CPU module is
removed from the base unit). Errors occur in the other CPU
modules.
S (Status change)
SM242 No.3 CPU reset flag • This relay switches to off when the CPU module of the CPU
No.3 is not being reset.
• This relay is on while the CPU module of the CPU No.3 is
being reset (including the case when the CPU module is
removed from the base unit). Errors occur in the other CPU
modules.
S (Status change)
SM243 No.4 CPU reset flag • This relay switches to off when the CPU module of the CPU
No.4 is not being reset.
• This relay is on while the CPU module of the CPU No.4 is
being reset (including the case when the CPU module is
removed from the base unit). Errors occur in the other CPU
modules.
S (Status change)