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Function Blocks

3/99 Function Block Reference Guide 133

2.48 8OR Function Block,

continued

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, 2, 3, 4, 5, 6, 7, 8 or all.

If the input is inverted, an input line that is ON

is seen as OFF. (“N” appears on the ICON next

to the inverted input.)

NOTE: Unused Inputs default to 0.

Example

Figure 2-45 shows a Function Block Diagram using an 8OR function block.

Output = X1

r X2

Figure 2-45

8OR Function Block Example

Honeywell UMC800 Reference Guide

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