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Function Blocks

Function Block Reference Guide 3/99196

2.63 SQRT Function Block

Description

The

SQRT

label stands for

Square Root

. This block is part of the

Calculations

category. It looks like this

graphically on the Control Builder.

Function

Extracts the square root of the analog input (X) as long as the input is greater than the configured

DROPOFF value.

•If X >

DROPOFF

, then:

OUT = square root of X

•Otherwise,

OUT = 0.

Input

X = Analog value for square root extraction

Output

OUT = Square Root value

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.

Configuration Parameters

You must configure the SQRT function Block

parameters to the desired value or selection that

matches your operating requirements.

Table 2-55 describes the parameters and the

value or selection.

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Honeywell UMC800 Reference Guide

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