Appendix 3.1 Link Special Relays (Sb) - Mitsubishi LJ61BT11 User Manual

Appendix 3.1 Link special relays (SB)

Number Name
SB0000
Data link restart
(5E0 , b0)
H
Refresh instruction at
SB0001
standby master
(5E0 , b1)
H
switching
SB0002
Data link stop
(5E0 , b2)
H
Refresh instruction
SB0003 when changing
(5E0 , b3) parameters by the
H
dedicated instruction
SB0004 Temporary error
(5E0 , b4) invalid request
H
Temporary error
SB0005
invalid canceling
(5E0 , b5)
H
request
Master station
SB0007
duplication error
(5E0 , b7)
H
canceling request
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Link special relays SB0000 to SB001F are turned ON/OFF by the program, and
SB0020 to SB01FF are turned ON/OFF by the L series master/local module.
The numeric values in parentheses in the Number column indicate addresses and bit
positions of the buffer memory.
Example: For buffer memory address 5E0
(5E0 ,b0)
H
When the standby master station is controlling the data link, the availability of the link's
special relays is basically identical to that of the master station.
When the standby master station is operating as a local station, the availability of the
link's special relays is identical to that of a local station.
For the correspondence with the buffer memory, refer to Appendix 2 (5).
POINT
Do not turn ON/OFF the area of the No. which does not exist in the link special
relay (SB) list.
Turning ON/OFF the area of the No. which does not exist in the list may cause
malfunction of the programmable controller system.
The following table lists the link special relays.
Restarts the data link that had been stopped by SB0002.
OFF: Restart not instructed
ON : Restart instructed
Instructs to perform cyclic data refresh after the data link control is
transferred to the standby master station.
OFF: Not instructed
ON : Instructed
Stops the host data link.
However, when the master station executes this, the entire system
will stop.
OFF: No stop instruction
ON : Stop instructed
Instructs to refresh cyclic data after changing parameters by the
G(P).RLPASET instruction.
OFF: Not instructed (stop refreshing)
ON : Instructed (start/continue refreshing)
Establishes the stations specified by SW0003 to SW0007 as
temporary error invalid stations.
OFF: Not requested
ON : Requested
Cancels the temporary error invalid status of stations specified by
SW0003 to SW0007.
OFF: Not requested
ON : Requested
Instructs to cancel master station duplication error.
OFF: Not instructed
ON : Instructed
H
Description
and bit 0:
Availability
( : Available,
Online
Master station Local station
APPENDIXES
: Not available)
Offline
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