Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 460

APPENDICES
No. Name
SW0018 System switching
(24) monitoring time setting
2
Number of retries
SW001C
(28)
2
Retry interval
SW001D
(29)
2
SW001E Number of gates
(30)
SW0020
Module status
(32)
ZNRD instruction
processing result
SW0031
(49)
Send/receive instruction
(1) processing result
ZNWR instruction
processing result
SW0033
(51)
Send/receive instruction
(2) processing result
SW0035 Send/receive instruction
(53) (3) processing result
SW0037 Send/receive instruction
(55) (4) processing result
2: Valid only when the SB0047 is off. When it turns on (error), the last data are retained.
App - 21
Table 4 Link special register (SW) list (continued)
Description
Set the time from the occurrence of a data link error to the
recognition of data link stop in the redundant system.
0 : 2 seconds (default)
: Units of 10 ms (Units of 10 ms for 10 ms to 5
1 to 500
seconds)
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
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 FE : Setting exists (unit: ms)
H
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 EF : Setting exists
H
Stores the communication status between the network module
and CPU module.
0 : Normal
Other than 0 : Stored an error code. (Refer to the user's
manual for the CPU module used.)
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)
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 (Refer to the error codes
in Section 8.3)
Indicates the processing result of the ZNWR instruction.
0 : Normal completion
Other than 0 : Abnormal completion (Refer to the error codes
in Section 8.3)
Indicates the processing results of the SEND/RECV/READ/
WRITE/REQ/RECVS/RRUN/RSTOP/RTMRD/RTMWR/REMFR/
REMTO instructions (when physical channel 2 is used).
0 : Normal completion
Other than 0 : Abnormal completion (Refer to the error codes
in Section 8.3)
Indicates the processing results of the SEND/RECV/READ/
WRITE/REQ/RECVS/RRUN/RSTOP/RTMRD/RTMWR/REMFR/
REMTO instructions (when physical channel 3 is used).
0 : Normal completion
Other than 0 : Abnormal completion (Refer to the error codes
in Section 8.3)
Indicates the processing results of the SEND/RECV/READ/WRITE/
REQ/RECVS/RRUN/RSTOP/RTMRD/RTMWR/REMFR/REMTO
instructions (when physical channel 4 is used).
0 : Normal completion
Other than 0 : Abnormal completion (Refer to the error codes
in Section 8.3)
Use permitted/prohibited
Control Normal
station station
Loop Bus Loop Bus
[Availability column] Loop: optical loop, Bus: coaxial/twisted bus
MELSEC-Q
Remote
Remote I/O
master
station
station
Loop Bus Loop Bus
: Available, : Not available
App - 21