Delta AH500 Programming Manual page 500

AH 5 00 Pr ogr am m ing Ma n ua l
API Instruction code
1505 FATAN
Device X
Y M
 
S
 
D
Symbol:
Explanation:
1. Arctangent value=tan
2. The relation between tangent values and arctangent values are shown below.
3. If the conversion result is 0, SM600 is ON.
Example:
When X0.0 is ON, the arctangent of the floating-point number in (D1, D0) is stored in (D11, D10).
The arctangent value in (D11, D10) is converted into the degree, and the conversion result is stored
in (D21, D20). The degree in (D21, D20) is converted into the integer, and the conversion result is
stored in (D31, D30). The integer in (D31, D30) is converted into the binary-coded decimal value,
and the conversion result is stored in Y0.15~Y0.0.
6 - 3 3 2
Operand
P S, D
S T C HC D
   
   
Pulse instruction 16-bit instruction (5-6 steps) 32-bit instruction
AH500
S ： Source value
D ： Arctangent value
-1
Arctangent of the floating-point
number
L SM SR E PR
  
  
AH500
Double word
Double word
Function
K 16# "$" DF

-