Omron CJ - PROGRAMMING MANUAL 08-2008 Programming Manual page 69

Basic Concepts
Text string
Text string data is stored in ASCII
(one byte except for special charac-
ters) in order from the leftmost to the
rightmost byte and from the right-
most (smallest) to the leftmost word.
00 Hex (NUL code) is stored in the
rightmost byte of the last word if
there is an odd number of charac-
ters.
0000 Hex (2 NUL codes) is stored in
the leftmost and rightmost vacant
bytes of the last word + 1 if there is
an even number of characters.
ASCII characters that can be used in a text string includes alphanumeric characters, Katakana and sym-
bols (except for special characters). The characters are shown in the following table.
ASCII Characters
Bits 0 to 3
Binary 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111
Hex 0 1
0000 0
0001 1
0010 2
0011 3
0100 4
0101 5
0110 6
0111 7
1000 8
1001 9
1010 A
1011 B
1100 C
1101 D
1110 E
1111 F
Description
---
Note Unsigned decimal notation if used for the CX-Programmer only.
2 3 4 5
0 @ P
Space
! 1 A Q
" 2 B R
# 3 C S
$ 4 D T
% 5 E U
& 6 F V
' 7 G W
( 8 H X
) 9 I Y
* : J Z
+ ; K [
, < L \
- = M ]
. > N ^
/ ? O _
Symbol Examples
'ABCDE'
'A' 'B'
'C' 'D'
'E' NUL
41 42
43 44
45 00
'ABCD'
'A' 'B'
'C' 'D'
NUL NUL
41 42
43 44
00 00
Bits 4 to 7
6 7 8 9
` p
a q
!
b r
"
c s
#
d t
$
e u
%
f v
&
g w
'
h x
(
i y
)
j z
*
k {
+
l |
,
m }
-
n
~ .
o
/
Section 2-1
---
MOV$ D00100 D00200
D00100 41
D00101 43
D00102 45
D00200 41
D00201 43
D00202 45
A B C D E
0 @ P
1 A Q
2 B R
3 C S
4 D T
5 E U
6 F V
7 G W
8 H X
9 I Y
: J Z
; K [
< L \
= M ]
> N ^
? O _
42
44
00
42
44
00
F
31