Mitsubishi Electric MELSEC FX Series - Page 643

7 Applied Instructions
7.20 Character String Control
641
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
1
Outline
2
Instruction List
3
Configuration of Instruction
4
How to Read Explanation of Instructions
5
Basic Instruction
6
Step Ladder Instructions
7
Applied Instructions
8
Interrupt Function and Pulse Catch Function
A
Relationships between devices and addresses
Program examples
1) In the program below, the character string data stored in D20 to D22 is regarded as an integer value,
converted into a binary value, and stored in D0 when X000 is set to ON.
2) In the program below, the character string data stored in D20 to D24 is regarded as an integer value,
converted into a binary value, and stored in D0 when X000 is set to ON.
X000
-1654
6
2
b15 b8 b7 b0
D20 31H(1)
2EH(.)
2DH(-)
36H(6)
34H(4) 35H(5)
D0
D11
Number of all digits
Number of digits of decimal part
"00H" is stored here.
00H
VALP
EN ENO
d1
d2
s
VAR_01
*1
VAR_02
*2
*1. VAR_01 is a global label and is defined as D20.
*2. VAR_02 is a global label and is defined as D10.
D0
[ Structured ladder] [ST]
VAR_02:=VALP(X000,VAR_01);
D0:=VALP(X000,VAR_01);
D21
D22
D23
D10
DVALP
EN ENO
d1
d2
s
VAR_03
*1
VAR_02
*2
*1. VAR_03 is a global label and is defined as D20.
*2. VAR_02 is a global label and is defined as D10.
VAR_04
*3
*3. VAR_04 is a global label and is defined as D0.
X000
[Structured ladder] [ST]
VAR_02:=DVALP(X000,VAR_03);
VAR_04:=DVALP(X000,VAR_03);
10
3
b15 b8 b7 b0
D20 37H(7)
31H(1)
20H(Space)
39H(9)
30H(0) 30H(0)
D0
D10 Number of all digits
Number of digits of decimal part
36H(6) 2EH(.)
31H(1) 31H(1)
79100611
D1 D0
"00H" is stored here.
00H
D11
D21
D22
D23
D24
D25