Mitsubishi Electric R32MTCPU - Arccosine: ACOS

4 OPERATION CONTROL PROGRAMS
4.7 Standard Functions
149
4
Arccosine: ACOS
Setting data
■Usable data
: Usable
■Description, data type of result
Processing details
•COS
-1
(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
-1
(arccosine) operation of D0F and substitutes the result to
#0F
Format Number of basic steps Usable steps
F/FS G
ACOS(S) 4 
Setting
data
Usable Data
Bit
device
Word device Constant Calculation
expression
Bit
conditional
expression
Comparison
conditional
expression
16-bit
integer
type
32-bit
integer
type (L)
64-bit
floating
point
type (F)
16-bit
integer
type
(K/H)
32-bit
integer
type
(K/H, L)
64-bit
floating
point
type (K)
(S)   
Setting data Description Data type of result
(S) COS value data on which COS
-1
(arccosine) operation will be performed Floating-point type
#0F = ACOS(D0F)
60.0
#2 #1#3 #0
#0F 0.5
D2 D1D3 D0
D0F