Honeywell HC900 Reference Guide

Function Blocks
DENC Digital Encoder Function Block
132 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
Outputs
ICNT
= Sum of the Inputs set to ON.
DENC = Bit encoded value representing the state of the Input pins (IN1 - IN16); where IN1 is the LSB and
IN16 is the MSB.
NOTE: This pin is typically connected to an Alternator block's "DRDYS" input pin.
Block properties
Double click on the function block to access the function block properties dialog box.
Example
HFigure 28 shows a Function Block Diagram using a DENC function block using multiple digital status to
select an appropriate setpoint for a flow loop.
Temp 1
Temp 2
Pressure 1
Pressure 2
Setpoint 1
Setpoint 2
Setpoint 3
Setpoint 4
Setpoint 5
Setpoint 6
Flow
To Flow
Regulator
Figure 28 DENC function block example

Honeywell HC900 Specifications

General

Series	HC900
Redundancy	Optional
Programming Language	Function Block Diagram, Ladder Logic, Structured Text
Inputs	Analog, Digital
Outputs	Analog, Digital, Relay
Display	Optional
Control	PID, Advanced Control
Power Supply	24V DC or 100-240V AC
Storage Temperature	-40°C to 85°C
Humidity	5% to 95% non-condensing
Communication Protocols	Modbus, Ethernet