Honeywell HC900 Reference Guide

Function Blocks
LDLG Lead/Lag Function Block
180 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
Block properties
Double click on the function block to access the function block properties dialog box.
Configuration parameters
Table 56 Lead lag configuration parameters
Properties Group Parameter Index # Parameter Description Value or Selection
Time Constants Lag Time (min)
0 T1 - Lag Time Constant 0.00 to 99.00 minutes
Lead Time
(min)
1 T2 - Lead Time Constant
NOTE: If T2 is set to 0, function
becomes a lag filter.
0.00 to 99.00 minutes

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