Delta DVP-20PM User Manual

5 Applied Instructions and Basic Usage
DVP-20PM Application Manual
5-117
API
Applicable model
20PM
134
D
D
ACOS
P
P
Arccosine of a binary floating-point
value

Bit device Word device
X Y M S F H KnX KnY KnM KnS T C D V Z
S
＊ ＊
D
＊
 Note: Please refer to specifications for more information about device
ranges.
Only the 32-bit instructions DACOS and DACOSP are valid.
F represents a floating-point value. There is a decimal point in a
floating-point value.
16-bit instruction
－ － － －
32-bit instruction (6 steps)
DACOS
Continuity
instruction
DACOSP
Pulse
instruction
 Flags
Ox O100
M1808 M1968 Zero flag
M1793 M1953 Operation error flag
 Please refer to the additional remark below.
Explanation
 Arccosine value=cos
-1
 S: Source value (binary floating-point value); D: Arccosine value
The relation
between cosine values and arccosine values is
shown below.
R
S
2
0
1,0-1,0
S: Cosine value
R: Arcconsine value
 The decimal floating-point value into which the cosine value in S is converted
can only be in the range of -1.0 to +1.0. If it is not in the range, the instruction
will not be executed, an operation error flag will be ON, and the error code
H0E19 will appear.
 If a conversion result is 0, a zero flag will be ON.
Example
 When X0 is ON, the arccosine of the binary floating-point value in (D1, D0) is
stored in (D11, D10).
X0
DACOS D0 D10
Binary floating-point value
Binary floating-point value
D 1 D 0
S
D
D 11 D 10
Arccosine value
Additional

rema
rk
Please refer to section 5.3 for more information about performing operations on
floating-point values.

Delta DVP-20PM Specifications

General

Brand	Delta
Model	DVP-20PM
Category	Controller
Language	English