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18 Applied Instructions (Floating Point)
18.2 DEZCP / Floating Point Zone Compare
443
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
11
Appl
ied
 In
stru
cti
ons 
(D
ata O
per
at
io
n)
12
Ap
plied
 Instru
ctio
ns 
(High S
peed 
Process
ing)
13
App
lied Instr
ucti
ons 
(Handy
 
Instruction)
14
Ap
pl
ied In
struct
ions 
(External FX I/O
 
D
evice)
15
Appl
ied
 Instru
cti
ons
 
(External
 Dev
ice 
(op
tional
 dev
ice)
)
16
App
lie
d Instr
uction
(E
xter
nal
 Devi
ce)
17
Ap
pl
ied Inst
ruct
io
ns 
(Dat
a T
ransf
er 2)
18
Appl
ied
 In
stru
cti
ons 
(Float
ing P
oin
t)
19
App
lie
d Instr
uction
(D
at
a Oper
at
ion 2)
20
App
lied Inst
ructi
ons 
(Pos
itioning 
Control)
18.2
DEZCP / Floating Point Zone Compare
Outline
This instruction compares the comparison range of upper and lower two points and the data (binary floating
decimal point), and issues the result to the bit device (3 points) depending on the greater, smaller or the band.
→ 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".
FX
3U(C)
FX
3G(C)
FX
3S
FX
2N(C)
FX
1N(C)
FX
1S
FX
U
/FX
2C
FX
0N
FX
0(S)
Instruction 
name
Operation
Execution 
form
Expression in each language
Structured ladder/FBD
ST
DEZCP
32 bits
Continuous
DEZCP(EN, s1, s2, s3, d);
DEZCPP
32 bits
Pulse
DEZCPP(EN, s1, s2, s3, 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)
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
X Y M T C S D
.b KnX KnY KnM KnS T C D R
U
\G
V Z Modifier K H
E
"
"
P
z
S1
S1
z
S1
z
S1
S1
z
S1
z
S1
S1
z
S1
z z
z
S2
z
DEZCP
EN
s1
s2
ENO
d
s3
DEZCPP
EN
s1
s2
ENO
d
s3