2Or Function Block - Honeywell UMC800 Reference Manual

Function Blocks

2.46 2OR Function Block

Description
The 2OR label stands for the inclusive OR (2 Inputs) Boolean logic function. This block is part of the
Logic and Fast Logic categories. It looks like this graphically on the Control Builder.
Function
Monitors two digital input signals (X, Y) to set state of digital output signal (OUT).
• If X = OFF and Y = OFF, then OUT = OFF.
• If X = ON and/or Y = ON, then: OUT = ON.
Input
X = First digital signal.
Y= Second digital signal.
Output
OUT = Digital signal controlled by status of input signals
Block Properties
Double click on the function block to access the
function block properties dialog box.
Block Order (Read Only)
You can change the assigned execution order
number by selecting "Execution Order" in the
"Configure" menu and arrange the order to suit
your control strategy.
Input State
You can invert Input 1 or input 2 or both. If the
input is inverted, an input line that is ON is seen
as OFF. ("N" appears on Icon next to the
inverted input.)
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OR
Function Block Reference Guide
Fast Logic
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