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2 Internal Memory in the CPU Unit
2-2
CP2E CPU Unit Software User’s Manual(W614)
2-1
Internal Memory in the CPU Unit
The internal memory in the CPU Unit consists of built-in RAM, built-in non-volatile RAM and built-in
Flash Memory. The built-in RAM and built-in non-volatile RAM are used as execution memory and the
built-in Flash Memory is used as backup memory.
The built-in RAM is the execution memory for the CPU Unit.
The user program and parameters are stored in the built-in RAM.
Data is unstable when the power supply is interrupted.
The built-in non-volatile RAM is the execution memory for the CPU Unit. It is used to retain the data
when the power supply is interrupted.
I/O memory is stored in the built-in non-volatile RAM.
Data Memory Area (D), Holding Area (H) and Counter Area (C) are retained even if the power supply is
interrupted with no battery installed.
2-1-1
CPU Unit Memory Backup Structure
Built-in RAM
Build-in Non-volatile RAM
B
u
ilt-in Fl
as
h Memory
(Ret
a
ined when the power
su
pply i
s
interr
u
pted)
U
s
er Progr
a
m Are
a
FB Progr
a
m Are
a
(B
a
ck
u
p)
P
a
r
a
meter
PLC
S
et
u
p
Ro
u
ting T
ab
le
IP Ro
u
ter T
ab
le
IP Addre
ss
T
ab
le
(B
a
ck
u
p)
S
o
u
rce
a
nd Comment Are
as
U
s
er Progr
a
m Are
a
FB Progr
a
m Are
a
P
a
r
a
meter
Exec
u
tion Memory
B
u
ilt-in RAM
(Not ret
a
ined when the power
su
pply i
s
interr
u
pted)
B
u
ilt-in Non-vol
a
tile RAM
(Ret
a
ined when the power
su
pply i
s
interr
u
pted)
I/O Memory Are
as
CPU Unit
DM Are
a
(B
a
ck
u
p)
DM Are
a
B
a
ck
u
p Memory
Exec
u
tion Memory
A
u
tom
a
tic
ba
ck
u
p
Re
s
tore
a
t
s
t
a
rt
u
p
A
u
tom
a
tic
ba
ck
u
p
Re
s
tore
a
t
s
t
a
rt
u
p
B
a
ck
u
p
us
ing
b
it in A
u
xili
a
ry Are
a
DM Are
a
d
a
t
a
re
s
tore
a
t
s
t
a
rt
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p
Содержание SYSMAC CP Series
Страница 1: ...USER S MANUAL Cat No W614 E1 01 SYSMAC CP Series CP2E E D CP2E S D CP2E N D CP2E CPU Unit Software ...
Страница 3: ......
Страница 32: ...1 Overview 1 4 CP2E CPU Unit Software User s Manual W614 ...
Страница 44: ...3 CPU Unit Operation 3 8 CP2E CPU Unit Software User s Manual W614 ...
Страница 116: ...6 I O Allocation 6 8 CP2E CPU Unit Software User s Manual W614 ...
Страница 144: ...7 PLC Setup 7 28 CP2E CPU Unit Software User s Manual W614 ...
Страница 170: ...10 Interrupts 10 14 CP2E CPU Unit Software User s Manual W614 ...
Страница 200: ...11 High speed Counters 11 30 CP2E CPU Unit Software User s Manual W614 ...
Страница 272: ...12 Pulse Outputs 12 72 CP2E CPU Unit Software User s Manual W614 ...
Страница 278: ...13 PWM Outputs 13 6 CP2E CPU Unit Software User s Manual W614 ...
Страница 460: ...18 Programming Device Operations 18 28 CP2E CPU Unit Software User s Manual W614 ...
Страница 576: ...Revision 2 CP2E CPU Unit Software User s Manual W614 ...
Страница 577: ......