Mitsubishi FX3G Series Programming Manual

519
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
18 Floating Point – FNC110 to FNC139
18.23 FNC135 – ATAN / Floating Point Arc Tangent
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
18.23 FNC135 – ATAN / Floating Point Arc Tangent
Outline
This instruction executes the TAN
−1
(arc tangent) operation.
→ 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 (DATAN and DATANP)
An angle is obtained from the tangent value stored in [ +1, ], and stored to [ +1, ].
A real number can be directly specified as .
• The angle (operation result) stored in [ +1, ] is expressed in radians (from −π/2 to +π/2).
For conversion between radians and degrees, refer to RAD (FNC136) and DEG (FNC137) instructions.
→ For RAD (FNC136) instruction, refer to Section 18.24.
→ For DEG (FNC137) instruction, refer to Section 18.25.
Operand Type Description Data Type
Head device number storing a tangent value used in the TAN
−1
(arc tangent) operation
Real number (binary)
Head device number storing the operation result
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
DATAN
DATANP
Mnemonic Operation Condition
32-bit Instruction
9 steps
Continuous
Operation
Pulse (Single)
Operation
P
FNC 135
ATAN
D
S
D
S
D
S S D D
S
Command
input
FNC135
DATAN
S  D 
+1
Binary floating point
(real number)
+1
Binary floating point
(real number)
TAN
− 1
S  S  D  D 
D D

Mitsubishi FX3G Series Specifications

General

Brand	Mitsubishi
Model	FX3G Series
Category	Controller
Language	English