Publication 1763-RM001C-EN-P - October 2009
214
Logical Instructions
OR - Logical OR
Instruction Type: output
The OR instruction performs a logical OR of two sources and places the
result in the destination.
OR
Bitwise Inclusive OR
Source A
N7:0
0000h<
Source B
N7:1
0000h<
Dest
N7:2
0000h<
OR
Execution Time for the OR Instruction
Controller
Data Size
When Rung Is:
True
False
MicroLogix 1100
word
13.06
μ
s
0.84
μ
s
long word
13.31
μ
s
0.84
μ
s
Truth Table for the OR Instruction
Destination = A OR 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:
1 1 1 1 1 1 1 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.
efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive