APPX
Appendix 4 List of Link Special Relay (SB)
309
A
SB013F PORT2 current error frame
reception status of station No.0 (1)
Stores if a receive frame error line status caution level is currently
occurring in the P2 side of the station No.0.
Off: A receive frame error line status caution level is not occurring.
On: A receive frame error line status caution level is occurring.
(Conditions)
• This relay is enabled when the submaster function is used.
SB0140 PORT1 error frame reception
detection status (1)
Stores if a receive frame error line status caution level has occurred
in the P1 side of each station from power-on until the present.
Off: A receive frame error line status caution level has not yet
occurred in any stations.
On: A receive frame error line status caution level has occurred in
one or more stations.
If a receive frame error line status caution level has occurred, the
status of each station can be checked with 'PORT1 error frame
reception detection status (1)' (SW0140 to SW0147).
Depending on the link refresh timing, the update of 'PORT1 error
frame reception detection status (1)' (SW0140 to SW0147) may be
offset by one sequence scan.
(Conditions)
• This relay is enabled when 'Baton pass status of own station'
(SB0047) is off.
• When 'Baton pass status of own station' (SB0047) is turned on,
data prior to error is held.
SB0141 PORT1 error frame detection of
master station
Stores whether the error frame was received at the P1 side of the
master station (master operating station) from power-on to the
present.
Off: Not received
On: Received
(Conditions)
• This relay is enabled when 'Baton pass status of own station'
(SB0047) is off.
• When 'Baton pass status of own station' (SB0047) is turned on,
data prior to error is held.
SB0148 PORT1 error frame reception
detection status (2)
Stores if a receive frame error line status warning level has occurred
in the P1 side of each station from power-on until the present.
Off: A receive frame error line status warning level has not yet
occurred in any stations.
On: A receive frame error line status warning level has occurred in
one or more stations.
If a receive frame error line status warning level has occurred, the
status of each station can be checked with 'PORT1 error frame
reception detection status (2)' (SW0148 to SW014F).
Depending on the link refresh timing, the update of 'PORT1 error
frame reception detection status (2)' (SW0148 to SW014F) may be
offset by one sequence scan.
(Conditions)
• This relay is enabled when 'Baton pass status of own station'
(SB0047) is off.
• When 'Baton pass status of own station' (SB0047) is turned on,
data prior to error is held.
SB0149 PORT1 error frame reception
detection status of station No.0 (2)
Stores if a receive frame error line status warning level has occurred
in the P1 side of the station No.0 from power-on until the present.
Off: A receive frame error line status warning level has not yet
occurred.
On: A receive frame error line status warning level has occurred at
least once.
(Conditions)
• This relay is enabled when the submaster function is used.
SB014F PORT1 error frame reception
detection status of station No.0 (1)
Stores if a receive frame error line status caution level has occurred
in the P1 side of the station No.0 from power-on until the present.
Off: A receive frame error line status caution level has not yet
occurred.
On: A receive frame error line status caution level has occurred at
least once.
(Conditions)
• This relay is enabled when the submaster function is used.
No. Name Description Availability
Master station
(submaster
station)
Local station
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