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18 Applied Instructions (Floating Point)
18.1 DECMP / Floating Point Compare
441
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)
18.1 DECMP / Floating Point Compare
Outline
This instruction compares two data (binary floating decimal point), and issues the result of greater, smaller, or
equal to the bit device (3 points).
→ 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".
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
DECMP 32 bits Continuous DECMP(EN, s1, s2, d);
DECMPP 32 bits Pulse DECMPP(EN, s1, s2, d);
Variable Description Data type
Input
variable
EN Execution condition Bit
Device for storing binary floating point data to be compared
FLOAT(Single
Precision)
Device for storing binary floating point data to be compared
FLOAT(Single
Precision)
Output
variable
ENO Execution state Bit
Head bit device for output of result (3 points occupied) ARRAY [0..2] OF Bit
Operand
type
Bit Devices Word Devices Others
System user Digit designation System user
Special
unit
Index
Con
stant
Real
Number
Character
String
Pointer
XYMTCS
D
.b
KnX KnY KnM KnS T C D R
U\G
V Z Modifier K H E
"
"
P
z
S1 S2
z
S4
z
S1 S2
z
S4
zz z
S3
z
DECMP
EN
s1
s2
ENO
d
DECMPP
EN
s1
s2
ENO
d