11 - 5 11 - 5
MELSEC
11 PROGRAMMING
11.3 Link Special Relays (SB)/Registers (SW)
The data linking information is stored in the link special relays (SB)/registers (SW).
They can be used by the user program, or used for investigating faulty areas and the
causes of errors by monitoring them.
The following table shows which SB and SW can be used to check which information.
For more details, refer to "Q Corresponding MELSECNET/H Network System
Reference Manual (PLC to PLC network)".
(1) To know the information about the host
Item SB
SW
Personal computer status of the host
(normal/abnormal)
SB004A
H
SB004B
H
SW004B
H
The external power supply status of the host
SB0042
H
----
Communication status between MELSECNET/H
board and personal computer.
SB0020
H
SW0020
H
Setting status of the MELSECNET/H board
SB0040
H
to 44
H
SB0058
H
to 69
H
SW0040
H
to 46
H
SW0054
H
to 68
H
Running status of the MELSECNET/H board
SB0047
H
to 49
H
SW0047
H
to 4A
H
(2) To know information about the entire network
Item SB
SW
CPU and personal computer status of each station
(normal/abnormal)
SB0080
H
SB0088
H
SW0080
H
to 83
H
SW0088
H
to 8B
H
CPU and personal computer operation status of
each station (RUN/STOP)
SB0084
H
SW0084
H
to 87
H
Cyclic transmission status of each station
SB0074
H
SW0074
H
to 77
H
The external power supply status of each station
SB008C
H
SW008C
H
to 8F
H
Link scan, communication mode
SB0068
H
SB0069
H
SW0068
H
to 6D
H
Setting information of the network
SB0054
H
to 69
H
SW0054
H
to 68
H
Running information of the network
SB0070
H
SW0070
H
to 73
H
Line status
SB0090
H
to 9A
H
SW0090
H
to 9F
H
(3) To know redundant CPU system information
Item SB
SW
Operating mode of redundant CPU
SB01F4
H
SW01F4
H
to 1F7
H
Pairing setting of each station
SB01F8
H
SW01F8
H
to 1FB
H
System status in redundant CPU system
SB01FC
H
SW01FC
H
to 1FF
H
Summary of Contents for Q80BD-J71BR11
Page 2: ......
Page 24: ...A 22 A 22 MEMO ...
Page 50: ...4 6 4 6 MELSEC 4 FUNCTION MEMO ...
Page 92: ...6 36 6 36 MELSEC 6 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION MEMO ...
Page 132: ...10 2 10 2 MELSEC 10 MELSEC DATA LINK LIBRARY MEMO 10 ...
Page 138: ...11 6 11 6 MELSEC 11 PROGRAMMING MEMO ...
Page 164: ...12 26 12 26 MELSEC 12 APPLICATION FUNCTIONS MEMO ...
Page 166: ...13 2 13 2 MELSEC 13 ERROR CODE MEMO 13 ...
Page 223: ......
