Mitsubishi Electric MELSEC-Q Series User Manual page 351

Number Name
SB0080
Other station data link
(5E8 , b0)
status
H
Other station
SB0081
watchdog timer error
(5E8 , b1)
H
status
SB0082
Other station fuse
(5E8 , b2)
blown status
H
SB0083
Other station switch
(5E8 , b3)
change status
H
SB0090
Host line status
(5E9 , b0)
H
Description
Whether communications are being normally performed
with a remote station, local station, intelligent device
station, and standby master station is stored.
OFF: All stations normal
ON: A faulty station exists. (The faulty station number is
stored in SW0080 to SW0083.)
It takes maximum of six seconds for Other station data link
status (SB0080) to turn on after a slave station connected
to the master station or local station becomes faulty.
Whether a watchdog timer error has occurred in other
stations is stored.
OFF: No error
ON: Error
Depending on the link refresh timing, SB0081 may be
updated with the time difference of one sequence scan
from the update of Other station watchdog timer error
occurrence status (SW0084 to SW0087).
Whether a fuse blown error has occurred in other stations
is stored (SW0088 to SW008B).
OFF: No error
ON: Error
Depending on the link refresh timing, SB0082 may be
updated with the time difference of one sequence scan
from the update of Other station fuse blown status
(SW0088 to SW008B).
Whether the setting of setting switches of other stations
during data link has been changed is detected.
OFF: No change
ON: Changed
Depending on the link refresh timing, SB0083 may be
updated with the time difference of one sequence scan
from the update of Other station switch change status
(SW008C to SW008F).
Whether the line to the host station is normally operating
is stored.
OFF: Normal
ON: Error (disconnected)
APPENDICES
Availability
( : Yes, ×: No)
Online
Offline
Master Local
station station
×
×
×
×
× ×
349
A