Mitsubishi Electronics 13JW55 ユーザーズマニュアル

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POINT 
 
 
Secure backup by long-term storage 
Programs and parameter files are automatically backed up to the program 
memory (Flash ROM) which does not require a battery backup. This prevents a 
loss of the program and parameter data due to the flat battery. 
The battery backup time is also reduced significantly. 
In addition, the important data (such as device data) can be backed up to the 
standard ROM to prevent a loss of the data due to the flat battery in case of 
consecutive holidays. 
The backup data is restored automatically when the power is turned on next 
time. 
Programming
tool
Latch data
Backup 
file
(Standard ROM)
File register
(Standard RAM)
Device data
Device memory
No battery 
backup 
needed!
CPU built-in memory
Program memory
(Flash ROM)
Program 
cache memory
(SRAM)
For program 
execution
No battery
required
for data
protection
Backup 
execution 
condition is 
ON
Write programs