288
FX3G/FX3U/FX3UC 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
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 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)
000
101
011
111
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
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