Honeywell HC900 Reference Guide

Function Blocks
RAI Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 307
2/07
Enum Type Range Low Range High EU
R 0 3100 F
S -18 1704 C
S 0 3100 F
T -184 371 C
T -300 700 F
T -129 260 C
T -200 500 F
W_W26 -20 2320 C
W_W26 -4 4200 F
W5W26 -18 2316 C
W5W26 0 4200 F
W5W26 -18 1227 C
W5W26 0 2240 F
Example
HFigure 80 shows a Function Block Diagram configuration using an RAI function block.
RAI used for work temperature monitoring. Tag descriptors are used to identify
the input. A digital tag connected to the fail output can alarm on an open
sensor.
Figure 80 RAI 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