Bitwise Or (Or); Relay Ladder; Structured Text; Function Block - Allen-Bradley Logix5000 Reference Manual

Move/Logical Instructions (MOV, MVM, BTD, MVMT, BTDT, CLR, SWPB, AND, OR, XOR, NOT, BAND, BOR, BXOR, BNOT)

Bitwise OR (OR)

dest := sourceA OR sourceB
The OR instruction performs a bitwise OR operation by using the bits in Source A and
Source B and places the result in the Destination.
Operands:

Relay Ladder

Operand
Source A
Source B
Destination

Structured Text

Use OR as an operator within an expression. This expression evaluates sourceA OR
sourceB.
See Structured Text Programming
structured text.

Function Block

Operand
OR tag
Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
Type Format
SINT Immediate
INT Tag
DINT
A SINT or INT tag converts to a DINT value by zero-fill.
SINT Immediate
INT Tag
DINT
A SINT or INT tag converts to a DINT value by zero-fill.
SINT Tag
INT
DINT
for information on the syntax of expressions within
Type
FBD_LOGICAL
Description
Value to OR with Source B
Value to OR with Source A
Stores the result
Format: Description
Structure OR structure
Chapter 7
319