Mitsubishi Electric RD77GF8 User Manual page 152

No. Name
SB0111 CPU minor error status of master
station
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)
SB0150 PORT2 error frame reception
detection status (1)
SB0151 PORT2 error frame detection of
master station
SB0158 PORT2 error frame reception
detection status (2)
APPX
150
Appendix 3 List of Link Special Relay (SB)
Description
Stores the minor error occurrence status of the CPU module on the master station (master operating
station).
Off: No minor errors, or a moderate/major error being occurred
On: Minor error
(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 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 caution level has occurred in the P2 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
"PORT2 error frame reception detection status (1)" (SW0150 to SW0157).
Depending on the link refresh timing, the update of "PORT2 error frame reception detection status (1)"
(SW0150 to SW0157) 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 was received at the P2 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.
Stores if a receive frame error line status warning level has occurred in the P2 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
"PORT2 error frame reception detection status (2)" (SW0158 to SW015F).
Depending on the link refresh timing, the update of "PORT2 error frame reception detection status (2)"
(SW0158 to SW015F) 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.