Hmon High Monitor Function Block - Honeywell HC900 Reference Manual

Function Blocks

HMON High Monitor Function Block

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.
170 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07