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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
10 Arithmetic and Logical Operation (
+
,
−
,
×
,
÷
) – FNC 20 to FNC 29
10.9 FNC 28 – WXOR / Logical Exclusive OR
1
Introduction
2
Overview
3
Instruction
List
4
Devices
in Detail
5
Specified the
Device &
Constant
6
Before
Programming
7
Basic
Instruction
8
FNC00-FNC09
Program Flow
9
FNC10-FNC19
Move & Compare
10
FNC20-FNC29
Arith. & Logic
Operation
2. 32-bit operation (DXOR and DXORP)
The exclusive logical sum (XOR) 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 exclusive logical sum operation is executed in units of bit as shown in the table below (1 ∀ 1 = 0, 0 ∀ 0 = 0,
1 ∀ 0 = 1, 0 ∀ 1 = 1).
1: ON, 0: OFF
Program example
By combining WXOR and CML (FNC 14) instructions, the exclusive logical sum not (XORNOT) operation can be
executed.
+1, +1,
+1,
DXOR (FNC 28) instruction
Logical operation
(unit: bit)
000
101
011
110
S
1
S
1
S
2
S
2
D
D
Command
input
FNC 28
DXOR
S1
S2
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
X000
FNC 28
WXOR
D 10 D 12 D 14
FNC 14
CML
D 14 D 14