Omron SYSMAC CP Series, User Manual

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3-5
3 CPU Unit Operation
CP2E CPU Unit Software User’s Manual(W614)
3-2 Bac
k
ing
Up
Memo
ry
3
3
-2-1 C
P
U Unit Memor
y
Conf
igur
ation
3-2 Backing Up Memory
This section describes backing up the CP2E CPU Unit memory areas.
Data backup to the CP2E CPU Unit ’ s built-in memory describes as below.
z
Ladder Programs and Parameter Area
Automatically backed up to the built-in Flash Memory whenever changed.
z
DM Area in the I/O Memory
Data in specified words of the DM Area can be backed up to the built-in Flash Memory by using bits
in the Auxiliary Area. Other words are not backed up to the built-in Flash Memory.
z
Other Areas in the I/O Memory (Including Holding Area Data, Counter PVs,
and Counter Completion Flags)
Automatically backed up to the built-in non-volatile RAM with no battery installed.
3-2-1 CPU Unit Memory Configuration
L a dder progr a m s
CP2E CPU Unit
B u ilt-in Fl as h Memory
P a r a meter Are a
PLC S et u p
Ro u ting T ab le
IP Ro u ter T ab le
IP Addre ss T ab le
P a r a meter Are a
· DM Are a
PLC power t u rned ON
Hold Are a , Co u nter Are a , DM Are a a nd p a rt
of A u xili a ry Are a a re ba cked u p to the bu ilt-
in non-vol a tile RAM.
Oper a tion us ing control
b it s in A u xili a ry Are a
PLC power t u rned ON
PLC power t u rned ON
PLC S et u p ch a nged
Ch a nging progr a m
B u ilt-in RAM
· I/O Are a
· Work Are a
· Holding Are a
· A u xili a ry Are a
· Timer Are a
· Co u nter Are a
P a rt of DM Are a
L a dder progr a m s
B u ilt-in Non-vol a tile RAM
PLC S et u p
I/O Memory Are as
Clock d a t a i s ba cked u p with ba ttery.
(CP2W-BAT02 s old s ep a r a tely)
Clock
Ro u ting T ab le
IP Ro u ter T ab le
IP Addre ss T ab le