Fnc 28 - Wxor / Logical Exclusive Or - Mitsubishi Electric MELSEC FX3U Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
10.9 FNC 28 – WXOR / Logical Exclusive OR
Outline
This instruction executes the exclusive logical sum (XOR) operation of two numeric values.
1. Instruction format
W
FNC 28
D XOR
2. Set data
Operand type
S
1
S
2
D
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
S
1
S
2
D
: This function is supported only in FX
Explanation of function and operation
1. 16-bit operation (WXOR and WXORP)
The exclusive logical sum (XOR) operation is executed to the contents of
the result is transferred to
Command
input
FNC 28
WXOR
• While the command input is OFF, the data of the transfer destination
• While the command input is ON, the data of the transfer sources
• When a constant (K) is specified in the transfer sources
the binary format.
• The logical exclusive 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).
Logical operation
(unit: bit)
302
Mnemonic
16-bit Instruction
P
7 steps WXOR
WXORP
Data used for exclusive logical sum or word device number storing data
Data used for exclusive logical sum or word device number storing data
Word device number storing the exclusive logical sum result
Digit Specification
3U
.
D
S1 S2
S
1
0
1
0
1
10 Arithmetic and Logical Operation (+, −, ×, ÷) – FNC 20 to FNC 29
Operation Condition
32-bit Instruction
Continuous
Operation
Pulse (Single)
Operation
Description
Word Devices
Special
System User
Unit
/FX PLCs.
3UC
D
S1 ∀ S2 →
and
S
1
S
0
0
1
1
10.9 FNC 28 – WXOR / Logical Exclusive OR
Mnemonic Operation Condition
DXOR
13 steps
DXORP
16- or 32-bit binary
16- or 32-bit binary
16- or 32-bit binary
Con- Real
Index
stant Number
V Z Modify K H E
and
S S
1 2
D
does not change.
D
and do not change.
S S
1 2
, it is automatically converted into
S
2
2
WXOR (FNC 28) instruction
Continuous
Operation
Pulse (Single)
Operation
Data type
Others
Charac-
Pointer
ter String
" " P
in units of bit, and
1: ON, 0: OFF
D
0
1
1
0