469
VAL, VALP, DVAL, DVALP
1
2
3
4
4
6
7
8
7.11 Character string processing instructions
7.11.10 VAL, VALP, DVAL, DVALP
: Character string to be converted to BIN data or head number of the devices where the character string is stored (character string)
: Head number of the devices where the number of digits of the converted BIN data will be stored (BIN 16 bits)
: Head number of the devices where the converted BIN data will be stored (BIN 16/32 bits)
Function
VAL
(1) Converts character strings stored in the device numbers starting from that designated at to BIN 16-bit data, and stores
the number of digits and BIN data in and .
For conversions from character strings to BIN, all data from the device number designated by to the device number
where "00
H
" is stored will be processed as character strings.
For example, if the character string "-123.45" is designated for the area starting from , the operation result would be
stored at and in the following manner:
(2) The total number of characters that can be designated as a character string at is from 2 to 8.
(3) From 0 to 5 characters from the character string designated at can become the decimal fraction part.
However, this number must not exceed the total number of digits minus 3.
(4) The range of the numerical character string that can be converted to BIN value is from -32768 to 32767, ignoring a
decimal point.
Numerical value character strings, excluding the sign and the decimal point, can be designated only within the range
from "30
H
" to "39
H
".
The value ignoring a decimal point means:
: "-12345.6" "-123456"
7.11.10 VAL, VALP Co nversion from character str ing to BIN 16 -bit data
DVAL, DVA LP Conversion from character string to BIN 32-bit data
7.11.10
VAL, VALP, DVAL, DVALP
• Basic model QCPU: The serial number (first five digits) is
"04122" or later.
(Compatible GX Developer: Version 8.00A or later)
Setting
Data
Internal Devices
R, ZR
J\
U\G
Zn
Constants
$
Other
Bit Word Bit Word
–– –– ––
–– –– ––
–– ––
Basic
Process
High
performance
Redundant
Universal
LCPU
Ver.
Command
Command
P
VALP, DVALP
VAL, DVAL
indicates an instruction symbol of VAL/DVAL.
S
D1
D2
S
D1
D2
S
D1
D2
S
D1
D2
S
D1 D2
S
.
Sign
1st
char-
acter
2nd
char-
acter
7th
char-
acter
Total number
of digits
Number of digits
in decimal fraction
Integer value
ignoring decimal
point
+1
BIN 16 bits
Indicates the end of character string
ASCII code for the sign
ASCII code for the 1st character
ASCII code for the 2nd character
ASCII code for the 3rd character
b15 b8b7 b0
ASCII code for the 4th character
00
H
ASCII code for the 5th character
ASCII code for the 6th character
ASCII code for the 7th character
+4
+3
+2
+1
D1
D2
S
S
S
S
S
D1
S
D1 D2
.
7
2
1 2 3 4 5
+1
2D
H
( )31
H
(1)
32
H
(2)33
H
(3)
b15 b8 b7 b0
2E
H
(.)34
H
(4)
35
H
(5)00
H
+3
+2
+1
123 4 5
S
S
S
S
D2
D1
D1
S
S
Example
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