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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
18 Floating Point – FNC110 to FNC139
18.25 FNC137 – DEG / Floating Point Radians to Degrees Conversion
18.25 FNC137 – DEG / Floating Point Radians to Degrees Conversion
Outline
This instruction converts a value in radians into a value in degrees.
→ For handling of floating point, refer to Subsection 5.1.3.
1. Instruction format
2. Set data
3. Applicable devices
Explanation of function and operation
1. 32-bit operation (DDEG and DDEGP)
The unit of [ +1, ] is converted from radians into degrees, and the operation result is stored to [ +1,
].
• The conversion from radians into degrees is executed as follows:
Program example
In the program example shown below, a binary floating point value set in radians in D20 and D21 is converted into a
BCD value in degrees, and stored to Y040 and Y057 when X000 turns ON.
Operation when "1.435792" is specified in D20 and D21
Operand Type Description Data Type
Head device number storing a value in radians to be converted into a value in degrees
Real number (binary)
Head device number storing a value in degrees acquired by conversion
Oper-
and
Type
Bit Devices Word Devices Others
System User Digit Specification System User
Special
Unit
Index
Con-
stant
Real
Number
Charac-
ter String
Pointer
XYMTCSD.b KnX KnY KnM KnS T C D R U\G VZModifyKH E ""P
33 3 3 3
33 3 3
−
−
Mnemonic Operation Condition
16-bit Instruction
DDEG
DDEGP
Mnemonic Operation Condition
32-bit Instruction
9 steps
Continuous
Operation
Pulse (Single)
Operation
P
FNC 137
DEG
D
S
D
S
D
S
S
D
D
Command
input
FNC137
DDEG
S
D
+1
Binary floating point
(real number)
+1
Binary floating point
(real number)
°
rad
S
S
D
D
Degrees = Radians
×
π
180
X000
FNC129
INT
D10
A value in radians is converted into a value in
degrees ([1]).
The angle in binary floating point (real number) is
converted into an integer ([2]).
The converted integer is output to the display unit
([3]).
D0
FNC137
DDEG
D20 D10
FNC 18
BCD
D0 K4Y40
END
[1]
Conversion
into degrees
DDEG
0 8
Y057 Y040
0 2
Binary floating point
value (real number)
1.435792
D21 D20
[3]
Conversion
into BCD
BCD
Binary floating point
value (real number)
82.26482
D11 D10
82
b15 b0
D0
Binary
value
[2]
Conversion
into binary
value
INT
BCD
value