Honeywell HC900 - Components and Architecture; Overview

Function Blocks
ADD Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 11
2/07
ADD Function Block
Description
The ADD label stands for Addition Mathematical Operation (2 Inputs).
This block is part of the Math category.
Function
Add two inputs (X, Y) to get an output.
• OUT = X + Y
Input
X = First Analog Input
Y = Second Analog Input
Output
OUT = Sum of analog values
ADD example
HFigure 2 shows a Function Block Diagram using an ADD function block to find the total flow rate as the
sum of Flow 1 and Flow 2.
Figure 2 ADD function block example