6.5.7 Double integer to string
Input/output Operand
Data type
IN
VD, ID, QD, MD, SD, SMD, LD, HC, constant, AC, *VD, *AC, *LD
Double integer
FMT
VB, IB, QB, MB, SB, SMB, LB, constant, AC, *VD, *LD, *AC
Byte
OUT
VB, *VD, LB, *AC, *LD
String
Double integer to string ： DI - s instruction: the instruction
converts the double integer to a ASCII string of 12 characters in
length.Format (FMT) specifies the number of digits to the right of
the decimal point.The output string is written in 13 consecutive
bytes from the OUT.
Illegal format （ nnn > 5 ）
ASCII constant string data type format ：
String is a series of characters, each character is stored as a byte.The first byte of a
string defines the length of the string, that is the number of characters.If a constant
string is entered directly into the program editor or data block, the string must start
and end with double quotation marks ("string constant").
The following memory map shows the format of the string data type.The length of a
string can be between 0 and 254 characters.The maximum length of the string is 255
bytes. String length
Character 1
Character 2
Character 5
Character 254
Character
Character
..................................
3
4
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 254
The following is the definition of Operation number of ITS format:
MSB
LSB
7
6
5
4
3
2
1
0
0
0
0
0
c
n
n
n
C = comma (1) or decimal point (0)
nnn = The number of digits on the right side of the decimal point
The length of the output string is always 12characters.nnn valid values are from 0 to
5. If nnn=0, the value will be displayed without a decimal point.When the value of
95
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