2. when system memory backup battery is not used – IAI America IA-T-XD User Manual
Page 18

Since the program, parameter, and symbol are read from flash memory at restart time, the data in
memory becomes the original data before editing unless the data is written in flash memory.
The controller always operates according to the data in memory (within the dotted box) excluding
parameters.
Content 1: Parameters excluding content 2 below and encoder parameters
Content 2: Driver card and IO slot card (power-supply system card) parameters
Content 3: Flags, variables, strings
8-2.
When system memory backup battery is not used
Other parameter No. 20 = 0 (Backup battery not installed)
Edit data with PC or
Teaching Pendant
Data maintained during
power-on and erased by
reset
Data maintained even after
power-off
Program
Parameter
(content 1)
Symbol
Position
Coordinate
system data
Flash writing
Flash
memory
Memory
Transfer
Reset reading
Transfer
Slave card
parameter
(content 2)
Memory
Transfer
Reset reading
Transfer
* Encoder
parameter
* Encoder
Transfer
Memory
Reset reading
SEL global data
(content 3)
Error list
Memory
Transfer
Since the program, parameter, symbol, position, and coordinate system data are read from flash
memory at restart time, the data in memory becomes the original data before editing unless the
data is written in flash memory.
The controller always operates according to the data in memory (within the dotted box) excluding
parameters.
Note: The SEL global data cannot be maintained when the backup battery is not installed.
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