Mitsubishi FX2N-16CCL-M, User Manual

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FX2N-16CCL-M CC-Link System Master Block Programming 9
9-6
9.3 Link Special Relay/Register (SB/SW)
The data link status can be checked using the bit information (link special relay SB) and the
word information (link special register SW).
"SB" and "SW" represent the buffer memory information in the master block, and can be read
and written by the FROM/TO instruction.
- Link special relay (SB) :Buffer memory addresses 5E0
H
to 5FF
H
- Link special register (SW) :Buffer memory addresses 600
H
to 7FF
H
9.3.1 Link special relay (SB) list
For the correspondence with the buffer memory, refer to Section 4.6.10.
Table 9.1:
Number
Buffer memory
Name Description
Number Bit
SB0000 5E0
H
0 Data link restart
Restarts the data link which was stopped by SB0002.
OFF : Does not give restart specification.
ON : Gives restart specification.
SB0002 5E0
H
2 Data link stop
Stops the data link in the host station.
(Use SB0000 to restart the data link.)
If the master station sets this relay to ON, the entire
system stops.
OFF : Does not give stop specification.
ON : Gives stop specification.
SB0004 5E0
H
4
Request for
temporary error
invalid station
Determines stations specified by SW0003 to
SW0004 as temporary error invalid stations.
OFF : Does not give the request.
ON : Gives the request.
SB0005 5E0
H
5
Request for cancel
of temporary error
invalid station
Cancels the stations specified by SW0003 to
SW0004 from temporary error invalid stations.
OFF : Does not give the request.
ON : Gives the request.
SB0008 5E0
H
8
Request for line
test
Executes the line test to the stations specified by
SW0008.
OFF : Does not give the request.
ON : Gives the request.
SB0009 5E0
H
9
Request for
parameter
verification test
Reads the parameter information on the actual
system configuration, and sets it to the parameter
information area.
OFF : Does not give the request.
ON : Gives the request.
SB0020 5E2
H
0 Module status
Indicates the buffer access status.
OFF : Does not give the request.
ON : Gives the request.