FX1N Series Programmable Controllers Introduction 1.
1-21
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Warning
If the PLC will be intentionally powered down for a duration exceeding 10days (Ambient
temperature: 25 °C), then please include the following code into the user program as the
supercapcitor backed area of memory will be unfixed.
The device data held by the
supercapcitor will not be reset to 0
as there is NO internal hardware
reset function.
However, initialization method by
the ZRST instruction, for capacitor
backed devices (T246 ~ T255,
C32 ~ C199, C220 ~ C234) can
not be initialized. In order to
initialize the condition of the reset
coil, execute in OFF the RST
instruction of the corresponding
device currently used into the user
program as shown in the example
program on the left.
M8002
M8001
The capacitor
backed device
currently used
into the user
program.
FNC 40
ZRST
D256 D7999
FNC 40
ZRST
M512 M1535
FNC 40
ZRST
S128 S999
FNC 40
ZRST
T246 T255
FNC 40
ZRST
C220 C234
FNC 40
ZRST
C32 C199
RST T246
RST T247
RST C32
RST C33
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