Honeywell HC900 Reference Guide

Function Blocks
ON/OFF Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 241
2/07
Table 72 ON/OFF Alarm tab configuration parameters
Properties
Function
Parameter Index # Parameter Description Value or Selection
Alarm 1 Setpoint 1
20 Alarm 1 Setpoint 1 Value - this is
the value at which you want the
alarm type chose below to activate
–99999 to 99999 in
Engineering Units
Type
N/A
Alarm 1 Setpoint 1 Type - select
what you want Alarm 1 Setpoint 1
to represent.
Selections:
NO ALARM
PV_HIGH
PV_LOW
DEV_HIGH
DEV_LOW
SP_HIGH
SP_LOW
OUT_HIGH
OUT_LOW
Setpoint 2
21 Alarm 1 Setpoint 2 Value
Same as
Alarm 1 Setpoint 1
Type
N/A Alarm 1 Setpoint 2 Type
Same as
Alarm 1 Setpoint 1
Alarm 2 Setpoint 1
22 Alarm 2 Setpoint 1 Value
Same as
Alarm 1 Setpoint 1
Type
N/A Alarm 2 Setpoint 1 Type
Same as
Alarm 1 Setpoint 1
Setpoint 2
23 Alarm 2 Setpoint 2 Value
Same as
Alarm 1 Setpoint 1
Type
N/A Alarm 2 Setpoint 2 Type
Same as
Alarm 1 Setpoint 1
Alarm Hysteresis %
28 Alarm Hysteresis in % 0 % to 5 %

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