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CPU Modules
198
35013379 11/2011
Key Switch
The following figure shows the key switch.
NOTE: The key switch positions shown next to the switch (above, left) are for
reference only and are marked on the module as indicated on the right.
The CPU53414B has 1435KByte of Flash EPROM memory, which can be used to
save the program and the initial values of variables. On power up, if you have a
program in flash memory, you can choose the desired operating mode using the
PLC MEM switch on the processor front panel. The 140CPU53414B has a key
switch with Run, Mem Prt, and Stop positions.
Stop position The application in Flash is not transferred to internal RAM: warm
restart of the application.
Mem Prt position The application in Flash is not transferred to internal RAM: warm
restart of the application.
Start position The application in Flash is automatically transferred to internal
RAM when the PLC processor is powered up: cold restart of the
application.