Mitsubishi Electric MELIPC MI5000 Series User Manual page 270

No. Name
SB00B0 Each station data link error status
SB00B1 Master station data link error status
SB00B8 Each station network connection
status
SB00C0 Reserved station settings status
SB00D0 Current error disabled station settings
status
SB00E0 Temporary error disabled station
settings status
SB00E8 Each station type matching status
SB00F0 Operating status of each station CPU
SB00F1 Operating status of master station
CPU
APPX
268
Appendix 7 List of Link Special Relays
Description
Stores each station data link error status.
• OFF: All stations normal
• ON: Error station found
In the event of faulty stations, the status of each station can be confirmed using 'each station data link
status' (SW00B0 to SW00B7).
If power supplies are switched ON in order of master stations and slave stations, data link may be
reconstructed. Within the maximum of three seconds to perform reconstruction, 'Each station data link
error status' (SB00B0) turns ON (error). Reconstruction of data link and 'Each station data link error
status' (SB00B0) turning ON (error) can be avoided by starting master stations last. <Conditions>
• Enabled when 'baton pass status' of own station (SB0047) is OFF. When 'baton pass status of own
station' (SB0047) is ON (error), the data immediately before is retained.
• The status is not stored for the reserved stations and the station numbers after the maximum station
number.
Stores the master station (master operating station) data link status.
• OFF: Normal
• ON: Error
<Conditions>
Enabled when 'baton pass status' of own station (SB0047) is OFF. When 'baton pass status of own
station' (SB0047) is ON (error), the data immediately before is retained.
Shows if network connection stations present.
• 0: N/A
• 1: Yes
When a network connected station is present, the status of each station can be confirmed using
'Network connection status' (SW00B8 to SW00BF).
Stores presence of reserved station settings.
• OFF: No settings
• ON: Set
If setting, the status of each station can be confirmed using 'reserved station settings status' (SW00C0
to SW00C7).
<Conditions>
Enabled when 'baton pass status' of own station (SB0047) is OFF. When 'baton pass status of own
station' (SB0047) is ON (error), the data immediately before is retained.
Stores presence of error disabled station settings.
OFF: No settings
ON: Set
If setting, the status of each station can be confirmed using 'error invalid station settings status'
(SW00D0 to SW00D7).
<Conditions>
Enabled when 'baton pass status' of own station (SB0047) is OFF. When 'baton pass status of own
station' (SB0047) is ON (error), the data immediately before is retained.
Stores presence of temporary error disabled station settings.
• OFF: No settings
• ON: Set
If setting, the status of each station can be confirmed using 'temporary error invalid station settings
status' (SW00E0 to SW00E7).
<Conditions>
Enabled when 'baton pass status' of own station (SB0047) is OFF. When 'baton pass status of own
station' (SB0047) is ON (error), the data immediately before is retained.
Shows each station type matching status.
• 0: All station types match
• 1: One or more non-matching stations
When a station with a mismatched station type is present, the status of each station can be confirmed
using 'Station type matching status' (SW00E8 to SW00EF).
Stores the operating status of each CPU module.
• OFF: All stations RUN or STEP-RUN status
• ON: Station in STOP, PAUSE status, or with moderate/major error
In the event of a Station in STOP, PAUSE status, or with moderate/major error, the status of each station
can be confirmed in 'each station CPU operating status' (SW00F0 to SW00F7).
<Conditions>
Enabled when 'baton pass status' of own station (SB0047) is OFF. When 'baton pass status of own
station' (SB0047) is ON (error), the data immediately before is retained.
The operating status of the master station CPU module or MELIPC is stored.
• OFF: RUN state
• ON: STOP state, or with moderate/major error
<Conditions>
Enabled when 'baton pass status' of own station (SB0047) is OFF. When 'baton pass status of own
station' (SB0047) is ON (error), the data immediately before is retained.