Honeywell UMC800 Reference Guide

Function Blocks
Function Block Reference Guide 3/9938
2.13 BCD Function Block
Description
The
BCD
label stands for
Binary Coded Decimal Translator
. This block is part of the
Auxiliary
category.
It looks like this graphically on the Control Builder.
Function
Accept up to 8 digital inputs in sequence and interprets the ON/OFF status of the first 4 inputs as a BCD
value between 0 and 9 and the second 4 digits as a value between 10 and 90.
Input
D1
= Bit 0 of the BCD lower digit
D2
= Bit 1 of the BCD lower digit
D4
= Bit 2 of the BCD lower digit
D8
= Bit 3 of the BCD lower digit
D10
= Bit 0 of the BCD upper digit
D20
= Bit 1 of the BCD upper digit
D40
= Bit 2 of the BCD upper digit
D80
= Bit 3 of the BCD upper digit
Output
OUT = Analog output integer in the range of 0 to 99
OUT = ( 1* (1 if D1 is ON, else 0))+
( 2* (1 if D2 is ON, else 0)) +
( 4* (1 if D4 is ON, else 0)) +
( 8* (1 if D8 is ON, else 0)) +
(10* (1 if D10 is ON, else 0)) +
(20* (1 if D20 is ON, else 0)) +
(40* (1 if D40 is ON, else 0)) +
(80* (1 if D80 is ON, else 0)))
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Honeywell UMC800 Specifications

General

Brand	Honeywell
Model	UMC800
Category	Controller
Language	English