Dcmp Deviation Compare Function Block - Honeywell HC900 Reference Manual

Function Blocks

DCMP Deviation Compare Function Block

DCMP Deviation Compare Function Block
Description
The DCMP label stands for Deviation Compare.
.
This block is part of the Calculations category
Function
Compares up to 6 analog inputs to a + or – user-entered deviation setpoint to a 7
sets the output true if any input exceeds the deviation value from the reference value. Output is off if all
inputs are less than the deviation.
Plus Dev Compare Value = Reference input + User entered Plus Deviation value
Minus Dev Compare Value = Reference input - User entered Minus Deviation value (Minus Deviation
value should be a positive number)
If any IN (1-6)> the Plus Dev Compare value, Out = ON
If any IN (1-6) < the Minus Dev Compare value, Out = ON
ATTENTION
When the reference input is the average of the 6 inputs, the block performs deviation from
average.
Input
IN1 = Input 1
IN2 = Input 2
IN3 = Input 3
IN4 = Input 4
IN5 = Input 5
IN6 = Input 6
Y =Reference Input
126 HC900 Hybrid Control Designer Function Block Reference Guide
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input reference value and
Revision 11
2/07