Honeywell HC900 Reference Guide

Function Blocks
4OR Function Block
246 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
Input state
You can invert Input 1, 2, 3, 4, or all. If the input is inverted, an input line that is ON is seen as OFF. (“N”
appears on the Icon next to the inverted input.)
ATTENTION
Unused Inputs default to 0.
Example
HFigure 65 shows a Function Block Diagram using a 4OR function block.
Output = X1 or X2 or X3 or
X4
Figure 65 4OR 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