Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

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 μs 0.84 μs
long word 13.31 μs 0.84 μs
Truth Table for the OR Instruction
Destination = A OR B
Source: A
1111101000001100
Source: B
1100111111000011
Destination:
1111111111001111
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 1100 Specifications

General

Processor	32-bit
Programming Software	RSLogix 500
Mounting	DIN rail or panel mount
Power Supply	24V DC
Type	Compact PLC
Digital Inputs	12
Digital Outputs	8
Analog Inputs	4 (depending on model)
Analog Outputs	Optional with expansion module
Programming Language	Ladder Logic
Operating Temperature	0 to 55 °C (32 to 131 °F)
Series	MicroLogix