Honeywell HC900 Reference Guide

Function Blocks
DI Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 137
2/07
Configuration parameters
Table 42 Digital input configuration parameters
Properties Group Parameter Index # Parameter Description Value or Selection
Address Rack
0
Rack on selected I/O Module From 1 to 5
I/O Module
Address of select I/O Module From 1 to 12
Channel
Channel on selected I/O Module From 1 to 16 or 32.
1
If INVERT is selected, OUT = inverse of physical input.
The slash will be present in the CONTACT symbol only when
the invert box is selected on the dialog box. (See below.)
Failsafe Failsafe ON
N/A
set the output of the block to OFF
when failure is detected
Click on radio button
to select
Failsafe OFF
N/A
set the output of the block to ON
when failure is detected
Click on radio button
to select
Failsafe
HOLD
N/A
hold the output at the last value just
prior to the failure being detected
Click on radio button
to select

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