Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual page 310

No. Name
SB0129 PORT1 current error frame
reception status of station No.0 (2)
SB012F PORT1 current error frame
reception status of station No.0 (1)
SB0130 PORT2 current error frame
reception status (1)
SB0131 PORT2 current error frame
reception status of master station
SB0138 PORT2 current error frame
reception status (2)
SB0139 PORT2 current error frame
reception status of station No.0 (2)
APPX
308
Appendix 4 List of Link Special Relay (SB)
Description
Stores if a receive frame error line status warning level is currently
occurring in the P1 side of the station No.0.
Off: A receive frame error line status warning level is not
occurring.
On: A receive frame error line status warning level is occurring.
(Conditions)
• This relay is enabled when the submaster function is used.
Stores if a receive frame error line status caution level is currently
occurring in the P1 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.
Stores if a receive frame error line status caution level is currently
occurring in the P2 side of each station.
Off: A receive frame error line status caution level is not occurring
in any stations.
On: A receive frame error line status caution level is occurring in
one or more stations.
If a receive frame error line status caution level is occurring, the
status of each station can be checked with 'PORT2 current error
frame reception status of each station (1)' (SW0130 to SW0137).
Depending on the link refresh timing, the update of 'PORT2 current
error frame reception status of each station (1)' (SW0130 to
SW0137) 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.
Stores whether the error frame is currently received at the P2 side
of the master station (master operating station).
Off: Not received
On: Currently receiving
(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.
Stores if a receive frame error line status warning level is currently
occurring in the P2 side of each station.
Off: A receive frame error line status warning level is not occurring
in any stations.
On: A receive frame error line status warning level is occurring in
one or more stations.
If a receive frame error line status warning level is occurring, the
status of each station can be checked with 'PORT2 current error
frame reception status of each station (2)' (SW0138 to SW013F).
Depending on the link refresh timing, the update of 'PORT2 current
error frame reception status of each station (2)' (SW0138 to
SW013F) 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.
Stores if a receive frame error line status warning level is currently
occurring in the P2 side of the station No.0.
Off: A receive frame error line status warning level is not
occurring.
On: A receive frame error line status warning level is occurring.
(Conditions)
• This relay is enabled when the submaster function is used.
Availability
Master station Local station
(submaster
station)
 
 
 
 
 
 