Honeywell HC900 - HMON High Monitor Function Block

Function Blocks
HMON High Monitor Function Block
170 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
HMON High Monitor Function Block
Description
The HMON label stands for High Monitor.
This block is part of the
Alarm/Monitor category.
Function
Monitors two analog input values (X and Y) and turns ON a digital output if X exceeds Y.
A hysteresis adjustment is provided to prevent output cycling.
• If X > Y, then OUT = ON.
• If X < or = (Y – Hysteresis), then OUT = OFF.
• If (Y – Hysteresis) < X < Y, then OUT = Previous State.
Input
X
= Analog value.
Y = Analog value
Output
OUT
= Digital signal
Block properties
Double click on the function block to access the function block properties dialog box.