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18 Applied Instructions (Floating Point)
18.19 DCOS / Floating Point Cosine
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
18.19 DCOS / Floating Point Cosine
Outline
This instruction determines the COS value of angle (RAD).
→ As for handling of floating decimal point, refer to FX Structured Programming Manual [Device &
Common].
1. Format and operation, execution form
2. Set data
3. Applicable devices
S: Refer to "Cautions".
Function and operation explanation
1. 32-bit operation (DCOS, DCOSP)
The value of angle (binary floating decimal point) specified by is converted into COS value, and is
transferred to the device specified by .
Cautions
1) Some restrictions to applicable devices.
S: The FX
3U and FX3UC PLCs only are applicable.
FX3U(C) FX3G(C) FX3S FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder/FBD ST
DCOS 32 bits Continuous DCOS(EN, s, d);
DCOSP 32 bits Pulse DCOSP(EN, s, d);
Variable Description Data type
Input
variable
EN Execution condition Bit
Device for storing the RAD (angle) of binary floating decimal point.
FLOAT(Single
Precision)
Output
variable
ENO Execution state Bit
Device for storing the COS value of binary floating decimal point.
FLOAT(Single
Precision)
Operand
type
Bit Devices Word Devices Others
System user Digit designation
System
user
Special
unit
Index
Cons
tant
Real
Number
Character
String
Pointer
XYMTCS
D.b
KnX KnY KnM KnS T C D R
U\G
VZModifierKH E
""
P
z
S1 S1
z
S1
z
S1 S1
z
DCOS
EN ENO
d
s
DCOSP
EN ENO
d
s
[ +1, ]RAD → [ +1, ]COS
DCOS
EN ENO
d
s
Binary floating
decimal point value
d
s
Binary floating
decimal point value
s d
Command
input
RAD value (angle × π/180)
Binary floating decimal point value is specified.
COS value
Binary floating decimal point value
+1
+1
d
s s
s
d
d
Device for storing
RAD (angle)
Device for storing
the COS value