Honeywell UDC 3300 manual Input Math Algorithms, Introduction Input algorithm selections

5.17 Input Math Algorithms

Introduction

Input algorithm selections

If selected via Math options, this controller has two input algorithms available. Each algorithm can be configured to provide a derived (calculated) PV or a derived remote setpoint. Up to three inputs may be applied to the calculation. In addition, the two algorithms may be “linked” to combine two calculations by configuring one algorithm to be an input to the other algorithm.

Standard functionality:

•Basic models (DC330B) contain as standard: Weighted Average, Feedforward Summer, Feedforward Multiplier.

•Expanded models (DC330E) provide as standard: Weighted Average, Feedforward Summer, Feedforward Multiplier, Relative Humidity.

The Math option, which provides additional algorithms plus two Characterizers, Totalizer, and Gain Scheduling, is available only on Expanded Model DC330E-XX-XXX.

Algorithm selections are made in Section 3 – Configuration. The following function prompts can be found in the Algorithm Set Up group:

IN ALG1

IN ALG2

These selections include the following algorithms:

Weighted Average

Feedforward Summer

Relative Humidity

Summer

Hi Select

Lo Select

√Multiply Divide

√Multiply Multiply Divide Multiply Feedforward Multiplier

Carbon Potential (several types) Dewpoint

The formulas for these selections are given in Table 4-5 in Section 4 – Configuration Prompt Definitions.

Input A, Input B, and Input C selections for these formulas are found in Section 4 – Configuration Prompt Definitions; Set Up group ALGORTHM, under the following function prompts:

ALG1 INA

ALG1 INB

ALG1 INC

ALG2 INA

ALG2 INB

ALG2 INC

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