501
FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
18 Floating Point – FNC110 to FNC139
18.7 FNC119 – EBIN / Scientific Notation to Floating Point Conversion
11
FNC30-FNC39
Rotation and
Shift
12
FNC40-FNC49
Data Operation
13
FNC50-FNC59
High Speed
Processing
14
FMC60-FNC69
Handy
Instruction
15
FNC70-FNC79
External FX I/O
Device
16
FNC80-FNC89
External FX
Device
17
FNC100-FNC109
Data
Transfer 2
18
FNC110-FNC139
Floating Point
19
FNC140-FNC149
Data
Operation 2
20
FNC150-FNC159
Positioning
Control
18.7 FNC119 – EBIN / Scientific Notation to Floating Point Conversion
Outline
This instruction converts scientific notation stored in devices into binary floating point.
→ 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 (DEBIN and DEBINP)
Scientific notation stored in [ +1, ] is converted into binary floating point, and transferred to [ +1,
].
Operand Type Description Data Type
Data register number storing scientific notation data Real number
(decimal)
Data register number storing converted binary floating point. Real number (binary)
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\GVZModifyKH E ""P
33 3 3
33 3 3
P
FNC 119
EBIN
D
−
Mnemonic Operation Condition
16-bit Instruction
DEBIN
DEBINP
Mnemonic Operation Condition
32-bit Instruction
9 steps
Continuous
Operation
Pulse (Single)
Operation
S
D
S
D
S
S
D
D
Command
input
FNC119
DEBIN
Scientific notation Binary floating point
S
D
[ +1, ]
→
[ +1, ]
S
S
D
D
After execution
Low order
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
High order
b31 b30 b29 b28 b27 b26 b25 b24 b23 b22 b21 b20 b19 b18 b17 b16
Before
execution Mantissa partExponent part
+1
×
10
+1
High order Low order
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0b31 b30 b29 b28 b27 b26 b25 b24 b23 b22 b21 b20 b19 b18 b17 b16
After
execution
+1
Mantissa part (23 bits)Exponent part (8 bits)
Sign (1 bit)
S
S
S
S
D
D