Honeywell HC900 Reference Guide

Function Blocks
Function block listings
8 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
Function Block Type Identification Label See Page
TAHD (Track and Hold)
H382
TCPR (Modbus/TCP Read)
H384
TCPS (Modbus/TCP Slave)
H388
TCPW (Modbus/TCP Write)
H396
TGFF (Toggle Flip Flop)
H384
TMDT (Time and Date)
H402
TOT (Totalizer)
H403
TPO (Time Proportional Output)
H406
TPSC (Three Position Step Control)
H409
TRIG (Trigger)
H424
UPDN (UP/Down Counter)
H426
VLIM (Velocity (rate) Limiter)
H428
WCON (Write Constant)
H430
WTUN (Write Tuning Constants)
H432
WVAR (Write Variables)
H434
XFR (Transfer Switch)
H436
XOR (Exclusive OR)
H438

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