Mitsubishi Electric MELSEC-Q Series User Manual page 246

Number Name
Data link status (own
SB0049
station)
Own station's CPU
SB004A
status (1)
Own station's CPU
SB004B
status (2)
CPU RUN status (own
SB004C
station)
Received parameter
SB004D
error
System link start
SB0054
request accept status
System link start
SB0055
completion status
System link stop
SB0056
request accept status
System link stop
SB0057
completion status
Reserved station
SB005C function disable
request accept status
Stores the own station's data link status.
OFF: Normal
ON : Error
If an error occurs, the cause of the error can be checked by Cause of data link stop (SW0049).
Depending on the timing of the link refresh, the update of Cause of data link stop (SW0049) may
be offset by one sequence scan.
(Conditions)
• This is enabled when Baton pass status (own station) (SB0047) is OFF.
Stores the continuation error status of the own station's CPU module.
OFF: Normal
ON : Continuation error
Stores the stop error status of the own station's CPU module.
OFF: Normal
ON : Stop error
Stores the RUN status of the own station's CPU module.
OFF: RUN, STEP-RUN
ON : STOP, PAUSE, or CPU module stopped due to error
Stores the status of the received parameter. (own parameter status during master station)
OFF: Parameter normal
ON : Parameter error
Turns on when a cyclic transmission start request by System link start (SB0002) is accepted.
OFF: Not accepted (SB0002 is off.)
ON : Start accepted (SB0002 is on.)
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Turns on when System link start request accept status (SB0054) turns on, and cyclic
transmission start is completed.
OFF: Start not completed (SB0002 is off.)
ON : Start completed (SB0002 is on.)
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Turns on when a cyclic transmission stop request by System link stop (SB0003) is accepted.
OFF: Not accepted (SB0003 is off.)
ON : Stop accepted (SB0003 is on.)
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Turns on when System link stop accept status (SB0056) turns on, and cyclic transmission stop is
completed.
OFF: Stop not completed (SB0003 is off.)
ON : Stop completed (SB0003 is on.)
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Turns on when Reserved station function disable request (SB0012) is accepted.
OFF: Not accepted
ON : Cancel accepted
Appendix - 10
Description
Appendices