APPX
Appendix 4 List of Link Special Relay (SB)
301
A
SB006F PORT2 error frame reception
detection status of own station
(latch) (1)
Stores if a receive frame error line status caution level has occurred
in the P2 side of the own station 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.
SB0070 Master station information Stores the data link status when the submaster function is being
used.
Off: Data link by the master station
On: Data link by the submaster station
SB0071 Submaster station information Stores whether a submaster station exists.
Off: No submaster station
On: Submaster station exists
SB0072 Scan mode setting information Stores the setting status of link scan mode.
Off: Asynchronous with sequence scan or constant link scan
On: Synchronous with sequence scan
SB0074 Reserved station specification
status
Stores the status of reserved station specification by parameter. The
station number of the station set as a reserved station can be
checked with 'Reserved station setting status' (SW00C0 to
SW00C7).
Off: Not specified
On: Specified
SB0075 Error invalid station setting status Stores the status of error invalid station setting by parameter. The
station number of the station set as an error invalid station can be
checked with 'Error invalid station setting status' (SW00D0 to
SW00D7).
Off: Not specified
On: Specified
SB0076 Submaster station setting
information
Stores whether a submaster station is set.
Off: No setting
On: Set
SB0077 Parameter reception status Stores the status of parameter reception from the master station.
Off: Reception completed
On: Reception not completed
(Submaster
station only)
SB0078 Network topology setting Stores the setting status of "Network Topology" in "Basic Settings"
for the own station (master operating station).
Off: Line topology, star topology, or coexistence of star and line
topologies
On: Ring topology
(Master
operating station
only)
SB0079 Master station return setting
information
Stores the setting status of the "Operation of Master Station after
Reconnection" in "Basic Settings" for the own station (master
station).
Off: Return as master operating station
On: Return as submaster operating station
(Master
station only)
SB007B Input data status of data link faulty
station
Stores the setting status of "Data Link Error Station Setting" under
"I/O Maintenance Settings" in "Supplementary Cyclic Settings" of
"Application Settings" for the own station.
Off: Clear
On: Hold
SB007C Line type setting status Stores the setting status of line types when the redundant system
was configured.
Off: Redundant master station or redundant slave station
On: Line redundant
The relay is turned off for the configuration other than the redundant
system.
(Master
station only)
*2
SB007D Hold/clear status setting for CPU
STOP
Stores the setting status of "Output Hold/Clear Setting during CPU
STOP" under "I/O Maintenance Settings" in "Supplementary Cyclic
Settings" of "Application Settings" for the own station.
Off: Hold
On: Clear
No. Name Description Availability
Master station
(submaster
station)
Local station
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