Honeywell HC900 Reference Guide

Function Blocks
CALEVT Calendar Event Function Block
92 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
SPECIAL DAYS tab
The Calendar Event Block can be configured to override its normal Event processing when any of the 16
Special Days occurs. This override will remain in effect for the 24-hour period associated with the Special
Day. This feature can be used to force selected Event outputs to remain off on designated holidays, for
example.
Table 27 Calendar Event Special Days tab configuration parameters
Properties Group Parameter Index # Parameter Description Value or Selection
Disable
Outputs for
the whole
day
N/A Disables the output from
midnight to midnight and
allows “Special Days” to be
configured
Click Radio Button to select.
Mode
Use
Alternate
Event Time
N/A Allows alternate Daily
setpoint (hour/minute)for
designated outputs (1-8)
Click Radio Button to select.
Event Name
N/A Name of event entered on
the “Event Details” tab.
Click Box to select
N/A
Special Day - Alternate
Hour of event
Active only if “Use Alternate
Event Times” radio button is
selected.
Use Up/Down buttons to select
hour
Range 0 - 23
Selected Outputs
Time
N/A
Special Day - Alternate
Minute of event
Active only if “Use Alternate
Event Times” radio button is
selected.
Use Up/Down buttons to select
minute
Range 0 - 59

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