Mitsubishi Electric MELSEC FX Series - 7.12.20 DTAN

7 Applied Instructions
7.12 Floating Point
497
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
1
Outline
2
Instruction List
3
Configuration of Instruction
4
How to Read Explanation of Instructions
5
Basic Instruction
6
Step Ladder Instructions
7
Applied Instructions
8
Interrupt Function and Pulse Catch Function
A
Relationships between devices and addresses
7.12.20 DTAN
Outline
This instruction determines the TAN 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 (DTAN, DTANP)
The value of angle (binary floating decimal point) specified by is converted into TAN value, and is
transferred to the device specified by .
FX3U(C) FX3G FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder ST
DTAN 32 bits Continuous DTAN(EN, s, d);
DTANP 32 bits Pulse DTANP(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 TAN 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
VZModifierK H E
"
"
P
z
S1 S1
z
S1
z
S1 S1
z
DTAN
EN ENO
d
s
DTANP
EN ENO
d
s
Command
input
Binary floating
decimal point value
Binary floating
decimal point value
DTAN
EN ENO
d
s
[ +1, ]RAD → [ +1, ]TAN d
s
s d
RAD value (angle × π/180)
Binary floating decimal point value is specified.
TAN value
Binary floating decimal point value
+1
+1
d
s
d
s
d
s
Label 1
*1
Label 2
*2
*1. To define the device for storing RAD (angle).
*2. To define the device for storing the TAN value.