Allen-Bradley MicroLogix 1400 User Manual

Publication 1766-RM001A-EN-P - October 2008
Logical Instructions 259
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 255 and
Updates to Math Status Bits on page 256.
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 1400 word 4.9480 µs 0.3671 µs
long word 4.8454 µs 0.3646 µs
Truth Table for the XOR Instruction
Destination = A XOR B
Source: A
1111101000001100
Source: B
1100111111000011
Destination:
0011010111001111
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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Allen-Bradley MicroLogix 1400 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1400
Category	Controller
Language	English