Filter
Top Products
18 Applied Instructions (Floating Point)
18.15 DESQR / Floating Point Square Root
477
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
11
Applied Instructions
(Data Operation)
12
Applied Instructions
(High Speed
Processing)
13
Applied Instructions
(Handy
Instruction)
14
Applied Instructions
(External FX I/O
Device)
15
Applied Instructions
(External Device
(optional device))
16
Applied Instructions
(External Device)
17
Applied Instructions
(Data Transfer 2)
18
Applied Instructions
(Floating Point)
19
Applied Instructions
(Data Operation 2)
20
Applied Instructions
(Positioning
Control)
18.15 DESQR / Floating Point Square Root
Outline
This instruction executes the square root operation of binary floating decimal point.
→ 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 (DESQR, DESQRP)
The data in the device specified by is operated by square root (binary floating decimal point), and the
result is transferred to the device specified by .
Related devices
→ As for the manner of using the zero flag, refer to the FX Structured Programming Manual [Device &
Common].
FX3U(C) FX3G(C) FX3S FX2N(C) FX1N(C) FX1S FXU/FX2C FX0N FX0(S)
Instruction
name
Operation
Execution
form
Expression in each language
Structured ladder/FBD ST
DESQR 32 bits Continuous DESQR(EN, s, d);
DESQRP 32 bits Pulse DESQRP(EN, s, d);
Variable Description Data type
Input
variable
EN Execution condition Bit
Device for storing binary floating decimal point data for square root
operation
FLOAT(Single
Precision)
Output
variable
ENO Execution state Bit
Device for storing binary floating decimal point data after square root
operation
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
VZModifierKH E
"
"
P
z
S1 S2
z
S3
z
S1 S2
z
Device Name Content
M8020 Zero To be turned ON when the operation result is true 0.
DESQR
EN ENO
d
s
DESQRP
EN ENO
d
s
Command
input
DESQR
EN ENO
d
s
Binary floating
decimal point
[ +1, ]
d
s
Binary floating
decimal point
s
[ +1, ]
d
→
Device for storing binary floating decimal
point data for square root operation
Device for storing binary floating decimal
point data after square root operation