Mitsubishi Electric MELSEC-Q Series User Manual page 247

Number Name
Reserved station
SB005D function disable
completion status
Reserved station
SB005E specification enable
request accept status
Reserved station
SB005F specification enabled
status
PORT1 linkup status
SB006A
(own station)
PORT1 error frame
SB006C reception status (own
station)
PORT1 error frame
SB006E
detection (own station)
Reserved station
SB0074
specification status
SB007A Event history status
Input data status of
SB007B
data link faulty station
Hold/clear status
SB007D
setting for CPU STOP
Turns on when Reserved station function disable request accept status (SB005C) is turned on
and disabling the reserved station function is completed.
OFF: Not completed
ON : Completed or error completion
Turns on when Reserved station specification enable request (SB0013) is accepted.
OFF: Not accepted
ON : Enable accepted
Turns on when Reserved station specification enable request accept status (SB005E) is turned
on and the reserved station specification enable processing is completed.
OFF: Not completed
ON : Completed or error completion
Stores the linkup status of PORT1 (own station).
OFF: Linkup in progress
ON : Linkdown in progress
The time that the linkup starts after power-on or Ethernet cable connection may vary. Normally, it
takes a few seconds.
Depending on device status on the line, a linkup process is repeated, resulting in the increase in
the time.
Stores if an error frame is received at the own station's PORT1.
OFF: An error frame has not yet been received
ON : An error frame has been received
Stores if an error frame was received from power-on until the present at the own station's
PORT1.
OFF: An error frame has not yet been received
ON : An error frame has been received
Stores the reserved station specification status due to parameters.
The reserved station number can be checked using Reserved station setting status (SW00C1 to
SW00C7).
OFF: Not specified
ON : Specified
Stores the network event history occurrence.
OFF: No event history
ON : Event history found
If the event history is found, the cumulative number of network event history can be checked by
the Event count (SW007A).
Depending on the timing of the link refresh, the update of Event count (SW007A) may be offset
by one sequence scan.
This area is cleared when Event count clear (SB0009) is turned on.
Stores the own station's setting status for "Data Link Disorder Station Setting".
OFF: OFF or cleared to 0
ON : Hold
Stores the own station's setting status for "Output Setting during CPU STOP".
OFF: Hold
ON : Clear (ALL OFF)
Appendix - 11
Description
Appendices