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MELSEC-Q
APPENDICES
Table 3 Link special register (SW) list (Continued)
No. Name Description
Availability
Control
station
Normal
station
Remote
master
station
Remote I/O
station
Optical Coaxial Optical Coaxial Optical Coaxial Optical Coaxial
SW000B
(11)
Logical channel setting
(channel 4)
Sets the logical channel number for physical channel number 4.
(Valid only for channels on the receiving side)
0 : Logical channel number 4 (default)
1 to 64 : Other logical channel number is set.
SW000C
(12)
Logical channel setting
(channel 5)
Sets the logical channel number for physical channel number 5.
(Valid only for channels on the receiving side)
0 : Logical channel number 5 (default)
1 to 64 : Other logical channel number is set.
SW000D
(13)
Logical channel setting
(channel 6)
Sets the logical channel number for physical channel number 6.
(Valid only for channels on the receiving side)
0 : Logical channel number 6 (default)
1 to 64 : Other logical channel number is set.
SW000E
(14)
Logical channel setting
(channel 7)
Sets the logical channel number for physical channel number 7.
(Valid only for channels on the receiving side)
0 : Logical channel number 7 (default)
1 to 64 : Other logical channel number is set.
SW000F
(15)
Logical channel setting
(channel 8)
Sets the logical channel number for physical channel number 8.
(Valid only for channels on the receiving side)
0 : Logical channel number 8 (default)
1 to 64 : Other logical channel number is set.
SW0018
(24)
System switching
monitoring time setting
Set the time from the occurrence of a data link error to the
recognition of data link stop in the redundant system.
0 : 2 s (default)
1 to 500 : Units of 10 ms (Units of 10 ms for 10 ms to 5 s)
2
SW001C
(28)
Number of retries
Indicates the change of the number of retries for the time of the
issue of a request in send and receive instructions.
0 : 7 times (default)
1 to 7 : Setting exists
2
SW001D
(29)
Retry interval
Indicates the change of the retry interval for the time of the issue
of a request in send and receive instructions.
0 : 100 ms (default)
1 to FEH : Setting exists (unit: ms)
2
SW001E
(30)
Number of gates
Indicates the change of the number of gates for the time of the
issue of a request in send and receive instructions.
0 : 7 (default)
1 to EFH : Setting exists
SW0020
(32)
Module status
Stores the status of the network module.
Stores the communication status between the network module
and the CPU module.
0 : Normal
Other than 0 : The error code is stored. (Refer to the manual
for the CPU module used.)
SW0031
(49)
ZNRD instruction
processing result
Indicates the processing result of the ZNRD instruction.
0 : Normal completion
Other than 0 : Abnormal completion (refer to the error codes
in Section 8.3)
Send/receive instruction
(1) processing result
Indicates the processing results of the SEND/RECV/READ/
WRITE/REQ/RECVS/RRUN/RSTOP/RTMRD/RTMWR/REMFR/
REMTO instructions (when physical channel 1 is used).
0 : Normal completion
Other than 0 : Abnormal completion (see the error codes in
Section 8.3)
2: Valid only when SB0047 is off. When it turns on (error), the last data are retained.