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695
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
28 Data Comparison – FNC220 to FNC249
28.3 FNC240~246 – OR=, >, <, < >, <=, >= / Data Comparison
21
FN
C
160-
FN
C
169
R
eal T
im
e C
lo
ck
C
ont
ro
l
22
FN
C
170-
FN
C
179
Exter
nal D
ev
ice
23
FN
C
180
Al
ter
nate
In
str
uc
tions
24
FN
C
181-
FN
C
189
O
ther
s
25
FN
C
190-
FN
C
199
B
lock D
ata
O
per
at
ion
26
FN
C
200
-F
N
C
20
9
C
har
acter
S
tring
C
ont
ro
l
27
FN
C
210-
FN
C
219
Da
ta
O
per
ation 3
28
FN
C
220-
FN
C
249
Da
ta
C
om
par
ison
29
FN
C
250
-F
N
C
26
9
D
ata T
abl
e
O
per
ati
on
30
FN
C
270-
FN
C
274
Ex
-D
ev
ice
Inv
ert
er
Com
m
s
28.3
FNC240~246 – OR=, >, <, < >, <=, >= / Data Comparison
Outline
These instructions compare numeric values, and set a contact to ON when the condition agrees.
1. Instruction format
2. Set data (common among FNC240 to FNC246)
3. Applicable devices (common among FNC240 to FNC246)
S
: This function is supported only in FX
3U
/FX
3UC
PLCs.
Operand Type
Description
Data Type
Device number storing comparison data
16- or 32-bit binary
Device number storing comparison data
16- or 32-bit binary
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
X Y M T C S D
.b KnX KnY KnM KnS T C D R U
\G
V Z Modify K H
E
"
"
P
3
3
3
3
3 3 3 3
S
3 3
3
3 3
3
3
3
3
3 3 3 3
S
3 3
3
3 3
FNC 240
OR=
D
Mnemonic
Operation Condition
16-bit Instruction
5 steps OR=
Mnemonic
Operation Condition
Continuous
Operation
32-bit Instruction
9 steps ORD=
Continuous
Operation
FNC 241
OR>
D
Mnemonic
Operation Condition
16-bit Instruction
5 steps OR>
Mnemonic
Operation Condition
Continuous
Operation
32-bit Instruction
9 steps ORD>
Continuous
Operation
FNC 242
OR<
D
Mnemonic
Operation Condition
16-bit Instruction
5 steps OR<
Mnemonic
Operation Condition
Continuous
Operation
32-bit Instruction
9 steps ORD<
Continuous
Operation
FNC 244
OR<>
D
Mnemonic
Operation Condition
16-bit Instruction
5 steps OR<>
Mnemonic
Operation Condition
Continuous
Operation
32-bit Instruction
9 steps ORD<>
Continuous
Operation
FNC 245
OR<=
D
Mnemonic
Operation Condition
16-bit Instruction
5 steps OR<=
Mnemonic
Operation Condition
Continuous
Operation
32-bit Instruction
9 steps ORD<=
Continuous
Operation
FNC 246
OR>=
D
Mnemonic
Operation Condition
16-bit Instruction
5 steps OR>=
Mnemonic
Operation Condition
Continuous
Operation
32-bit Instruction
9 steps ORD>=
Continuous
Operation
S
1
S
2
S
1
S
2