Mitsubishi Electric MELSEC-Q Series User Manual page 245

Number Name
SB0002 System link start
SB0003 System link stop
Clear communication
SB0006
error count
SB0009 Event count clear
Operation cycle
SB000C
interrupt request
Reserved station
SB0012 function disable
request
Reserved station
SB0013 specification enable
request
Network type (own
SB0040
station)
SB0043 Mode (own station)
Station setting (own
SB0044
station) (1)
Baton pass status (own
SB0047
station)
Cyclic transmission of the entire system is restarted.
The station where cyclic transmission is restarted is specified by the Link stop/start direction
(SW0002 to SW0008).
OFF: No start direction
ON : Start direction (enabled during start-up)
(Conditions)
• This is enabled when Baton pass status (own station) (SB0047) is off.
• For SB0002 and SB0003, this is enabled when only one of them is turned on.
Cyclic transmission of the entire system is stopped.
The station where cyclic transmission is stopped is specified by the Link stop/start direction
(SW0002 to SW0008).
OFF: No stop direction
ON : Stop direction (enabled during start-up)
(Conditions)
• This is enabled when Baton pass status (own station) (SB0047) is off.
• For SB0002 and SB0003, this is enabled when only one of them is turned on.
Clears the link special registers for the communication error (SW0068, SW0069, SW0074 to
SW0077, SW0120 to SW0127, SW0130 to SW0137, SW0140 to SW0147, and SW0150 to
SW0157).
OFF: No clear direction
ON : Clear direction (valid while this relay is on)
This clears the Event history status (SB007A) and Event count (SW007A).
OFF: No clear direction
ON : Clear direction (Errors are not counted while this is ON.)
Used as the condition for the interrupt setting to execute an interrupt request to the CPU module
in every operation cycle.
Stations specified in Reserved station function disable setting (SW0011 to SW0017) are
temporarily canceled from reserved stations.
OFF: No request
ON : Request issued
Stations specified in Reserved station function disable setting (SW0011 to SW0017) are returned
to reserved stations.
Only stations that were temporarily canceled can be returned to reserved stations.
OFF: No request
ON : Request issued
Stores the network type of own station.
ON: Field network
Stores the mode of own station.
OFF: Online
ON : Not online
This stores if the own station is a master station or not.
OFF: Not master station
ON : Master station
Stores the baton pass status for the own station (transient transmission possible).
OFF: Normal
ON : Error
If an error occurs, the cause of the error can be checked by the Baton pass status (own station)
(SW0047) and Cause of baton pass interruption (SW0048).
Depending on the timing of the link refresh, the update of Baton pass status (own station)
(SW0047) and Cause of baton pass interruption (SW0048) may be offset by one sequence scan.
Appendix - 9
Description
Appendices