Delta AH500 - Page 635

Chapter 6 Applied Instructions
6-467
API Instruction code Operand
Function
2109 $FSTR P
S
1
, S
2
, D
Converting the floating-point
number into the string
Device
X Y M S T C HC D L SM SR E PR K 16# “$” DF
S
1
        
S
2
       
D
      
Pulse instruction
16-bit instruction (7-8 steps)
32-bit instruction
AH500
AH500
-
Symbol:
S
1
：
Source value Double word
S
2
：
Initial device in which the
format is stored
Word
D
：
Initial device in which the
conversion result is stored
Word
Explanation:
1. The floating-point number in S
1
is converted into the string in accordance with the setting of S
2
,
and the conversion result is stored in D.
2. The conversion result varies with the setting of S
2
.
3. The value in S
2
+1 should be within the range between 2 and 24.
0: Decimal format
1: Exponential
S2
S2+1
S2+2
Number of characters
Number of decimal places
4. Decimal format
b15
b0
b7 b8
D
+1
D
+2
D
+3
D
+4
D
Decimal point (.)
S2
Number of characters
Decimal foramt
Number of decimal places
+2
S2
+1
S2
.
Floating-point number
(S1+1, S1)
Fourth ASCII code
Sign
F
irst ASCII code
Second ASCII code
Third ASCII code
Fifth ASCII code
Sixth ASCII code
16#00 ( )Ending character
Automatically stored at the end of the string
Sign