Omron CP - PROGRAMMING MANUAL 05-2007 Programming Manual page 557

Floating-point Math Instructions
Examples
524
Converting ASCII Text in Decimal Notation to Floating-point Data
When CIO 0.00 is ON in the following example, FVAL(449) converts the spec-
ified decimal-notation ASCII text number in the source words starting at D0 to
floating-point data and writes the result to destination words D100 and D101.
0.00
FVAL
D0
D100
The 7th and higher digits are ignored.
(The sign, decimal point, and leading
zeroes/spaces are not counted.)
Ignored
0 1 . 2 3 4 5 2 1
Conversion
D0 2D ( )
20 (Space)
D1 30 (0)
31 (1)
D2 2E (.) 32 (2)
D3 33 (3) 34 (4)
D4 35 (5) 32 (2)
D5 31 (1)
00
Converting ASCII Text in Scientific Notation
When CIO 0.00 is ON in the following example, FVAL(449) converts the spec-
ified scientific-notation ASCII text number in the source words starting at D0
to floating-point data and writes the result to destination words D100 and
D101.
0.00
FVAL
D0
D100
Ignored Ignored
1 . 2 3 4 5 E - 0 2
Conversion
D0 2D ( ) 20 (Space)
D1 31 (1) 2E (.)
D2 32 (2) 33 (3)
D3 34 (4) 35 (5)
D4 45 (E)
2D ( )
D5 30 (0) 32 (2)
D6 00 00
15 0
0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0
1 0 1 1 1 1 1 1 1 0 0 1 1 1 1 0
Storage
15 0
0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0
D100
1 0 1 1 1 1 1 1 1 0 0 1 1 1 1 0
D101
15 0
0 1 0 0 0 0 1 0 1 0 1 0 1 1 1 1
1 0 1 1 1 1 0 0 0 1 0 0 1 0 1 0
Storage
15 0
0 1 0 0 0 0 1 0 1 0 1 0 1 1 1 1
D100
1 0 1 1 1 1 0 0 0 1 0 0 1 0 1 0
D101
Section 3-14