Honeywell HC900 Reference Guide

Function Blocks
CARB Carbon Potential Function Block
108 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
Properties Group Parameter Index # Parameter Description Value or Selection
Reset
Minutes
or
Repeats/
Minute
2
Reset 1
38
Reset 2
RESET (Integral Time) -
adjusts the controller’s output
according to both the size of
the deviation (SP-PV) and the
time it lasts. The amount of
corrective action depends on
the value of Gain.
The reset adjustment is
measured as how many times
proportional action is repeated
per minute (Repeats/minute)
or how many minutes before
one repeat of the proportional
action occurs
(Minutes/repeat).
0.02 to 50.00
Must be enabled for
PID-B or DUP-B algorithm
selections.
Rate
Minutes
1
Rate 1
37
Rate 2
RATE action, in minutes
affects the controller’s output
whenever the deviation is
changing; and affects it more
when the deviation is changing
faster.
0 or 0.1 to 10.00 minutes
0 = OFF
Feedforward Gain
Feed-
Forward
Gain
43
Applies Gain to the
Feedforward value (FFV).
Feedforward Input is multiplied
by this value.
0.0 to 10.0
Manual Reset
Manual
Reset
32
MANUAL RESET- is only
applicable if you do not use
RESET (Integral Time).
–100 to 100
(in % of Output)
ATTENTION
DUPA and DUPB algorithm types automatically select tuning set #2 for outputs between
50 % and –5 %. Tuning set #2 must be entered for DUPA and DUPB.

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