301
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
10 Arithmetic and Logical Operation (
+
,
−
,
×
,
÷
) – FNC 20 to FNC 29
10.8 FNC 27 – WOR / Logical Word OR
1
Int
roduct
ion
2
O
ver
view
3
In
str
uc
tion
Li
st
4
D
evices
in D
etail
5
Spec
ified t
he
D
evice &
C
onst
ant
6
Bef
ore
Pr
ogr
am
m
ing
7
B
asic
In
st
ru
ct
io
n
8
FN
C
00-FN
C
09
P
rogr
am
F
low
9
FN
C
10
-FN
C
19
Mo
ve
&
Co
mp
are
10
FNC2
0-F
NC2
9
Ar
ith.
&
Logic
O
per
ation
2. 32-bit operation (DOR and DORP)
The logical sum (OR) operation is executed to the contents of [
+1,
] and [
+1,
] in units
of bit, and the result is transferred to [
+1,
].
• While the command input is OFF, the data of the transfer destination [
+1,
] does not change.
• While the command input is ON, the data of the transfer source [
+1,
] [
+1,
] do not
change.
• When a constant (K) is specified in the transfer source [
+1,
] [
+1,
], it is
automatically converted into the binary format.
• The logical sum operation is executed in units of bit as shown in the table below (1
∨
1 = 1, 0
∨
1 = 1,
0
∨
0 = 0, 1
∨
0 = 1).
1: ON, 0: OFF
+1,
+1,
+1,
DOR (FNC 27) instruction
Logical operation
(unit: bit)
0
0
0
1
0
1
0
1
1
1
1
1
S
1
S
1
S
2
S
2
D
D
Command
input
FNC 27
DOR
S
1
S
2
D
+1,
∨
+1,
→
+1,
S
1
S
2
D
S
1
S
2
D
D
D
S
1
S
1
S
2
S
2
S
1
S
1
S
2
S
2
S
1
S
1
S
2
S
2
D
D