Mitsubishi FX3G Series Programming Manual

517
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
18 Floating Point – FNC110 to FNC139
18.22 FNC134 – ACOS / Floating Point Arc Cosine
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
18.22 FNC134 – ACOS / Floating Point Arc Cosine
Outline
This instruction executes COS
−1
(arc cosine) 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 (DACOS and DACOSP)
An angle is obtained from the cosine value stored in [ +1, ], and stored to [ +1, ].
A real number can be directly specified as .
• The cosine value stored in [ +1, ] can be set ranging from −1.0 to +1.0.
• The angle (operation result) stored in [ +1, ] is expressed in radians (from 0 to π).
For conversion between radians and degrees, refer to the RAD (FNC136) and DEG (FNC137) instructions.
→ For the RAD (FNC136) instruction, refer to Section 18.24.
→ For the DEG (FNC137) instruction, refer to Section 18.25.
Error
An operation error is caused in the following case; The error flag M8067 turns ON, and the error code is stored in
D8067.
• When a value specified in is outside the range from −1.0 to +1.0 (error code: K6706)
Operand Type Description Data Type
Head device number storing a cosine value used in COS
−1
(arc cosine) 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
DACOS
DACOSP
Mnemonic Operation Condition
32-bit Instruction
9 steps
Continuous
Operation
Pulse (Single)
Operation
P
FNC 134
ACOS
D
S
D
S
D
S S D D
S
Command
input
FNC134
DACOS
S  D 
+1
Binary floating point
(real number)
+1
Binary floating point
(real number)
COS
− 1
S  S  D  D 
S S
D D
S

Mitsubishi FX3G Series Specifications

General

Brand	Mitsubishi
Model	FX3G Series
Category	Controller
Language	English