Clearing Memory Areas - Omron CJ - 10-2005 Manual

Clearing Memory Areas

Keypad
3-4 Clearing Memory Areas
Note
• When the text input mode mark is displayed and a key is pressed, the text
or numeral on the lower-right corner of the key can be entered.
• Pressing the CLR Key to return to the normal key input mode.
The key layout of the CS1W-KS001-E Key Sheet is illustrated below.
FUN
A
TN
AND
G
AA
LD
M
7
7
E
4
4
B
1
1
A
0
0
This operation is used to clear program memory and I/O memory and initialize
the PLC Setup. The following two methods for clearing memory are possible.
The memory areas cleared in each method are as follows:
Memory clear
method
All clear Creates a task and
writes the END
instruction. (See
note 2.)
Memory clear Clears from the
designated program
address of the task
currently being
edited (part of the
program.) (See
note 1.)
1. If program address 000000 is designated, the program of the task currently
being edited will all be cleared.
2. The entire program will be cleared. After clearing the programs in all tasks,
either interrupt tasks and one cyclic task or just one cyclic task can be cre-
ated.
3. An address range within specific memory areas cannot be specified. All
data within the specified memory areas will be cleared.
When the All Clear or Memory Clear operation is executed, an END(001)
instruction will be written to the first address of the user ladder program.
NOP(000) instructions will not be written.
,IR+
SFT NOT
,IR
B C D
,–IR
TK
ST
TR
OR
CNT
H I DISP J
AC EM
TIM
OUT
DM
N O P
*EM_
8 9
EM_/EXT
8
9 S
F
5 6
SET
V
5 6
C D
2 3 RESET
2 3 Y
TEXT
VRFY
CLR
!
Memory area
Program I/O memory
Clears designated
memory areas.
(See note 3.)
Clears designated
memory areas.
(See note 3.)
Section 3-4
DR
SHIFT
IR
E F
*EM
AR
WR/LR HR
K L
CH
CONT
*DM
#
Q
R
CF
CHG
SRCH
T U
DEL MON
W X
↑
INS
Z
↓
WRITE
PLC Setup
All PLC Setup set-
tings
All PLC Setup set-
tings.
37