Data Link Stop/Restart - Mitsubishi A1SJ61BT11 User Manual

4 FUNCTIONS

4.11 Data Link Stop/Restart

M9036
Stop command
Data link stop
M25 (SB0045)
Restart command
Data link restart
M21 (SB0041)
M9036
The data link in the host station can be stopped or restarted.
When the data link is stopped for the master station, the data link for the entire system
stops.
(1) The link special relay used in the program is shown below:
SB0000: Data link restart request
SB0002: Data link stop request
SB0041: Data link restart complete
SB0045: Data link stop complete
(2) A program example to stop/restart the data link is shown below.
This example assumes that the module's first I/O No. is X/Y30.
Relationship between the PC CPU and master station
1
PC CPU
M15 to
M35 to
Program example
2
TO
M0
FROM
M20
FROM H0003 H05E4 K4M20
SET
RST
SET
RST
TO H0003 H05E0 K4M0
4 - 27
MELSEC-A
Master station
Link special relay (SB)
5E0 SB000F to SB0000
H
5E4 SB004F to SB0040
H
Read SB0040 to SB004F status
K1
M2 (SB0002) data-link
M2
stop on
M2 (SB0002) data-link
M2
stop off
M0 (SB0000) data-link
M0
restart on
M0 (SB0000) data-link
M0
restart off
K1 Write to SB0000 to SB000F