Mitsubishi Electric MELSEC-Q Series User Manual page 250

Number Name
PORT1 error frame
SB0120 reception status (each
station)
PORT1 error frame
SB0121 reception status
(master station)
PORT2 error frame
SB0130 reception status (each
station)
PORT1 error frame
SB0140 detection (each
station)
PORT1 error frame
SB0141 detection (master
station)
Stores if an error frame is received at each station's PORT1.
OFF: An error frame has not yet been received at any stations.
ON : An error frame has been received at one or more stations.
If an error frame has been received, the status of each station can be checked by the PORT1
error frame reception status (each station) (SW0120 to SW0127).
Depending on the timing of the link refresh, the update of PORT1 error frame reception status
(each station) (SW0120 to SW0127) may be offset by one sequence scan.
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Stores if an error frame is received at the master station's PORT1.
OFF: An error frame has not yet been received
ON : An error frame has been received
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Stores if an error frame is received at each station's PORT2.
OFF: An error frame has not yet been received at any stations.
ON : An error frame has been received at one or more stations.
If an error frame has been received, the status of each station can be checked by the PORT2
error frame reception status (each station) (SW0130 to SW0137).
Depending on the timing of the link refresh, the update of PORT2 error frame reception status
(each station) (SW0130 to SW0137) may be offset by one sequence scan.
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Stores if an error frame was received from power-on until the present at each station's PORT1.
OFF: An error frame has not been received at any stations
ON : An error frame has been received at one or more stations
If an error frame has been received, the status of each station can be checked by the PORT1
error frame detection (each station) (SW0140 to SW0147).
Depending on the timing of the link refresh, the update of PORT1 error frame detection (each
station) (SW0140 to SW0147) may be offset by one sequence scan.
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Stores if an error frame was received from power-on until the present at the master station's
PORT1.
OFF: An error frame has not yet been received
ON : An error frame has been received at least once
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Appendix - 14
Description
Appendices