AH500 Programming Manual
6-84
API
Instruction code Operand Function
0205 D FINT P
S, D
Converting the 64-bit floating-point
number into the binary integer
Device
X Y M S T C HC D L SM SR E PR K 16#
“$” DF
Pulse instruction 32-bit instruction (5 steps)
64-bit instruction (5 steps)
Symbol:
S
：
Source device Long word
D
：
Conversion result Word/Double word
Explanation:
1. The double-precision floating-point number in the register specified by S is converted into the
binary integer. The binary floating-point number is rounded down to the nearest whole digit,
and becomes the bianry integer. The binary integer is stored in the register specified by D.
2. The source device S used in the instruction FINT occupies four registers, and D used in FINT
occupies one register.
3. The source device S used in the instruction DFINT occupies four registers, and D used in
DFINT occupies two registers.
4. The operand D used in the instructions FINT and FLTP can not be the 32-bit counter.
5. The instruction FINT is the opposite of the instruction FLTD.
6. When the conversion result is zero, SM600 is ON.
7. During the conversion, if the floating-point number is rounded down to the nearest whole digit,
SM601 will be ON.
8. When the conversion result exceeds the range, SM602 is ON.
For the instruction FINT/FINTP, the range of conversion results is between -32,768 and
32,767.
For the instruction DFINT/DFINTP, the range of conversion results is between -2,147,483,648
and 2,147,483,647.
Example:
1. When X0.0 is ON, the double-precision floating-point number in (D3, D2, D1, D0) is converted
into the binary integer, and the conversion result is stored in D10. The binay floating-point
number is rounded down to the nearest whole digit.
2. When X0.1 is ON, the double-precision floating-point number in (D23, D22, D21, D20) is
converted into the binary integer, and the conversion result is stored in (D31, D30). The binay
floating-point number is rounded down to the nearest whole digit.
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