Honeywell HC900 Reference Guide

Function Blocks
DO Function Block
148 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
Example
HFigure 33 shows a Function Block Diagram using a DO function block. A digital output signal from PID
block AL1 will turn the Digital Output block ON & OFF for remote alarming. This output could be OR’d
with other alarm outputs if going to a common alarm relay.
Figure 33 DO 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