Cpu Unit Memory Map - Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual

CPU Units
2-4-3

CPU Unit Memory Map

Units after simple backup is performed. Therefore, after the data has been
read to the CPU Unit, turn the power OFF and back ON and then press the
Initial Switch on the Duplex Unit. If DIP switch pin 7 on the active CPU Unit
is ON, a duplex verification error will occur.
Pin 7 of DIP switch
on CPU Unit
ON
OFF (default)
Note After data is read from the Memory Card to the CPU Unit using the
simple backup function, operation is not possible in any mode other
than PROGRAM Mode. To switch to either MONITOR Mode or
RUN Mode, first turn the power OFF and turn DIP switch pin 7 back
OFF.
Then turn the power back ON and change the mode from a Pro-
gramming Device.
The memory of CS1D CPU Units is configured in the following blocks.
• I/O Memory: The data areas accessible from the user program
• User Memory: The user program and Parameter Area (See note 1.)
The above memory is backed up using a CS1W-BAT01 Battery. If the battery
voltage is low, the data in these areas will not be stable.
The CPU Unit has a built-in flash memory, however, to which the user pro-
gram and Parameter Area data is backed up whenever the user memory is
written to, including data transfers and online editing from a Programming
Device (CX-Programmer or Programming Console, data transfers from a
Memory Card, etc.). The user program and the Parameter Area data will thus
not be lost even if battery voltage drops.
Simple backup operation
Writing from active CPU Unit
to Memory Card
Reading from Memory Card
to active CPU Unit
Comparison of Memory
Card and CPU Unit
Section 2-4
Procedure
Hold down the Memory
Card Power Supply Switch
for three seconds.
Turn PLC power OFF and
then back ON.
This setting is given priority
over automatic transfer at
startup (pin 2 ON).
Hold down the Memory
Card Power Supply Switch
for three seconds.
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