Mitsubishi Electric MELSEC iQ-R Series User Manual page 96

(0) Set the control start relay when the master station or standby master station is operating.
(10)Turn off 'Compl_ScanWaitAfterBackUpLinkDevice' (M103). Also, clear 'NumberOfScansAfterBackUpLinkDevice' (D0).
(15)After saving the RX, RY, RWr, RWw data to devices and wait a fixed number of scans, turn on 'Compl_ScanWaitAfterBackUpLinkDevice' (M103).
After saving the link devices, wait a fixed number of scans and execute the processing that sets the link devices saved at master switching and 'Refresh
instruction at standby master switching' (SB0001). (In the program example, wait for the number of scans for the value entered in the position "K0".)
For details, refer to precautions of the standby master function. ( Page 47 Precautions)
(24)When 'Master switching request acceptance' (SB005A) turns on, data in RX, RY, RWr, and RWw are saved in 'BackUpRX' (W1000), 'BackUpRY' (W1100),
'BackUpRWr' (W1500), and 'BackUpRWw' (W1600).
(46)When 'Master switching request completion' (SB005B) turns on and 'Compl_ScanWaitAfterBackUpLinkDevice' (M103) turns on, data saved in 'BackUpRX'
(W1000), 'BackUpRY' (W1100), 'BackUpRWr' (W1500), and 'BackUpRWw' (W1600) are stored in RX, RY, RWr, and RWw.
(71)Turn on 'Refresh instruction at standby master switching' (SB0001).
(79)Turn off 'Refresh instruction at standby master switching' (SB0001).
(90)Control program when the master station is operating
(103)Control program when the standby master station (local station) is operating
3 PROGRAMMING
94
3.3 Communication Example Using the Standby Master Function