Honeywell HC900 Reference Guide

Function Blocks
STG Stage Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 369
2/07
Table 109 STG Stage Tabs parameters
Properties Group Parameter Index # Parameter Description Value or Selection
Label
N/A
Unique name for each of the 4
internal stage functions
8 Characters
Settings
Type
N/A
See “Stage Types” for definitions
and
HTable 108 for associated
parameters
Pressure/Flow
Pump Down
Pump UP
User Configured
Default =
Pressure/Flow
Interlocking
N/A
When set to ON, the current stage
is interlocked to the
previous
stage
ON = Interlock
OFF = No Interlock
Default = OFF
N/A
When set to ON, the current stage
is interlocked to the
next stage
ON = Interlock
OFF = No Interlock
Default = OFF
PV
N/A
Defines PV1 or PV2 as the source
for the comparison to SP ON.
See
HTable 108 for
defaults.
SP
12 - 15
Setpoint used with ON comparator No range limits
Can be changed from
an operator interface
Compare
Type
N/A
Comparison type operator
between PV ON and SP ON.
See
HTable 108 for
defaults.
On Compare
Latch Delay
28 - 31
Delay prior to latching the output
ON
Range:
0 – 9999 seconds
PV
N/A
Defines PV1 or PV2 as the source
for the comparison to SP OFF.
See
HTable 108 for
defaults.
SP
16 - 19
Setpoint used with OFF
comparator
No range limits
Can be changed from
an operator interface
Compare
Type
N/A
Comparison type operator
between PV OFF and SP OFF.
See
HTable 108 for
defaults.
Off Compare
Latch Delay
32 - 35
Delay prior to unlatching the
output OFF
Range:
0 – 9999 seconds

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