410
26 REDUNDANT FUNCTION
26.4 Memory Copy from Control System to Standby System
Operation of the special relay and special register
The following chart shows the operation of the special relay and special register.
(1) The memory copy starts.
(2) The memory copy is completed.
(3) When the memory copy is successfully completed, 0 is stored. When it is completed with an error, an error code is stored.
(1) (2)
(3)
00
0
0
OFF
ON
OFF
ON
OFF
ON
03D1H
SM1653
SM1654
SM1655
SD1653
SD1654
Memory copy start
Memory copy being executed
Memory copy completion
Memory copy status
Memory copy destination I/O number
To Next Page
Loading...
