Publication 1763-RM001C-EN-P - October 2009
Logical Instructions
215
XOR - Exclusive OR
Instruction Type: output
The XOR instruction performs a logical exclusive OR of two sources and
places the result in the destination.
For more information, see Using Logical Instructions on page 211 and
Updates to Math Status Bits on page 212.
XOR
Bitwise Exclusive OR
Source A
N7:0
0000h<
Source B
N7:1
0000h<
Dest
N7:2
0000h<
XOR
Execution Time for the XOR Instruction
Controller
Data Size
When Rung Is:
True
False
MicroLogix 1100
word
13.09
μ
s
0.87
μ
s
long word
13.31
μ
s
0.87
μ
s
Truth Table for the XOR Instruction
Destination = A XOR B
Source: A
1 1 1 1 1 0 1 0 0 0 0 0 1 1 0 0
Source: B
1 1 0 0 1 1 1 1 1 1 0 0 0 0 1 1
Destination:
0 0 1 1 0 1 0 1 1 1 0 0 1 1 1 1
IMPORTANT
Do not use the High Speed Counter Accumulator
(HSC.ACC) for the Destination parameter in the AND,
OR, and XOR instructions.
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