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26 Applied Instructions (Character String Control)
26.1 STR / BIN to Character String Conversion
618
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
Function and operation explanation
1. 16-bit operation (STR/STRP)
1) All digits (specified by ) of 16-bit binary data of the device specified by are converted into
character string while the decimal point is added to the position specified by the device storing the
number of digits of the decimal part ( + 1), and stored in the device specified by and later.
2) Set the number of all digits in the range from 2 to 8.
3) Set the number of digits of the decimal part + 1 in the range from 0 to 5.
Be sure to satisfy "(number of digits of decimal part) ≤ (number of all digits - 3)".
4) 16-bit binary data to be converted stored in should be within the range from -32768 to 32767.
5) Converted character string data is stored in and later as shown below.
a) As the sign, "space" (20H) is stored when the 16-bit binary data stored in is positive, and "-"
(2DH) is stored when the 16-bit binary data stored in is negative.
b) When the number of digits of the
decimal part + 1 is set to any
value other than "0", the decimal
point "." (2EH) is automatically added
in "number of digits of decimal part +
1"th digit.
When the number of digits of the
decimal part + 1 is set to "0",
the decimal point is not added.
c) When the number of digits of the
decimal part + 1 is larger than
the number of digits of 16-bit binary
data stored in , "0" (30H) is
automatically added, and the data is
shifted to the right end during
conversion.
STR
EN ENO
d
s1
s2
Head device storing the number of digits
of a numeric value to be converted
Command
input
Device storing binary
data to be converted
Head device storing converted character string
Number of
all digits
Number of digits
of decimal part
Sign
+0
+1
16-bit
binary data
s1
s2
5
1
- 1 2 3
+0
+1
-123
16-bit
binary data
s1
s2
+0
b15
+2
+3
+4
b8 b7 b0
0000H is automatically stored
at the end of a character string.
+1
For number of
all digits
For value stored
in
ASCII code in "(Value
specifying number
of all digits - 7)"th digit
ASCII code in "(Value
specifying number
of all digits - 6)"th digit
ASCII code in "(Value
specifying number
of all digits - 5)"th digit
ASCII code in "(Value
specifying number
of all digits - 4)"th digit
ASCII code in "(Value
specifying number
of all digits - 3)"th digit
ASCII code in "(Value
specifying number
of all digits - 2)"th digit
ASCII code in "(Value
specifying number
of all digits - 1)"th digit
ASCII code
indicating sign
0000H
s1
d
b15
+0
+2
b8 b7 b0
00H is automatically stored
at the end of a character string.
+1
For number
of all digits
=5
31H(1)
2EH(.)
00H
2DH(-)
32H(2)
33H(3)
s1
12 3
Number of digits
of decimal part
Number of all digits
4
It is automatically
added.
Number of digits
of decimal part
16-bit binary data
6
2
1234
001
Number of all digits
2
It is automatically
added.
Number of digits
of decimal part
16-bit binary data
6
3
12