Arccosine: Acos - Mitsubishi Electric R16MTCPU Programming Manual

Arccosine: ACOS

Format
ACOS(S)
Setting data
■Usable data
: Usable
Setting Usable Data
data
Bit Word device
device
16-bit
integer
type
 
(S)
■Description, data type of result
Setting data Description
(S) COS value data on which COS
Processing details
-1
• COS (arccosine) operation is performed on the COS value data specified with (S) to find an angle.
• The COS value specified with (S) must be within the range -1.0 to 1.0.
• The operation result is in an angle (degree) unit.
• If (S) is an integer type, it is converted into a floating-point type before operation is performed.
Operation error
An operation error will occur if:
• (S) is outside the range -1.0 to 1.0.
• (S) is an indirectly specified device and its device No. is outside the range.
Program example
■Program which performs the COS
#0F
#0F = ACOS(D0F)
#3 #2
#0F 60.0
Number of basic steps
4
Constant
32-bit 64-bit 16-bit
integer floating integer
type (L) point type
type (F) (K/H)
  
-1
(arccosine) operation will be performed
-1
(arccosine) operation of D0F and substitutes the result to
#1 #0
D0F
Usable steps
F/FS

Calculation
expression
32-bit 64-bit
integer floating
type point
(K/H, L) type (K)
  
Data type of result
Floating-point type
D3 D2 D1
0.5
4 OPERATION CONTROL PROGRAMS
G

Bit Comparison
conditional conditional
expression expression
 
D0
4.7 Standard Functions
4
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