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Function Blocks

Function Block Reference Guide 3/9986

2.29 LDLG Function Block,

continued

Block Properties

Double click on the function block to access the

function block properties dialog box.

Block Order (Read Only)

You can change the assigned execution order

number by selecting “Execution Order” in the

“Configure” menu and arrange the order to suit

your control strategy.

Configuration Parameters

You must configure the LDLG function Block

parameters to the desired value or selection that

matches your operating requirements.

Table 2-27

describes the parameters and the

value or selection.

Table 2-27 Lead Lag Configuration Parameters

Properties

Group

Parameter Index# Parameter Description Value or Selection

Time Constants

Lag Time (min)

T1 - Lag Time Constant 0.00 to 99.00

minutes

Lead Time

(min)

T2 - Lead Time Constant

Note: If T2 is set to 0, function

becomes a lag filter.

0.00 to 99.00

minutes

Honeywell UMC800 Reference Guide

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