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APPENDICES
Appendix 1 Link Special Relay (SB)
This section describes the link special relay areas added to the MELSECNET/H (MELSECNET/10 mode) remote I/O
station. The list provides only the link special relay areas added.
For other link special relay areas, refer to the following.
Reference manual for the MELSECNET/10 network system used
No. Name Description
Availability
Remote master
station
MELSECNET/10
remote I/O
station
MELSECNET/H
(MELSECNET/10
mode) remote
I/O station
Optical Coaxial Optical Coaxial Optical Coaxial
SB0011
Data link
operation
specification
This relay instructs the data link operation.
• OFF: No switching instruction
• ON: Switching instructed (enabled at the rising edge)
Upon turning on of this relay, the data link status changes
from the online (normal data link) operation to the online
(debug) operation, or from the online (debug) operation to
the online (normal data link) operation.
××××
SB0046
Data link
operation
specification
result (host)
This relay indicates the switch setting information
(including the parameter setting) of the network module on
the host station.
• OFF: Normal data link being performed
• ON: Being operated in debug mode
××××
Debug
operation
Online
operation
SB0011
Debug
operation