Honeywell UDC2300 - Manual

Industrial Automation and Control, 1110 Virginia Drive, Fort Washington, PA 19034

Printed in U.S.A.

■

© Copyright 1999—Honeywell Inc.

UDC2300
Universal Digital Controller

51-52-03-27

8/99

Page 1 of 12

Specification

Overview

The UDC 2300 Universal Digital
Controller is a new low priced
addition to Honeywell’s LeaderLine
family.

This controller introduces new
features in the popular low priced
¼ DIN size while retaining all the
reliability, cost effectiveness,
simplicity, and popular HMI of
Honeywell’s UDC 2000.

The UDC 2300 monitors and controls
temperatures and other variables in
applications such as environmental
chambers, plastic processing
machines, furnaces and ovens, and
packaging machinery. The standard
features include AccutuneII™ and the
popular single display, automatic
mode model. A Dual Display model
with Automatic/Manual control modes
is optional. A Limit Control model is
also available.

ALM

OUT

PV

F

FUNCTION

AUTO

TUNE

MAN-AUTO

RESET

SET UP

RUN

HOLD

C

R

L

1 2
1 2

SP 2300

2300

DISPLAY

M

A

Figure 1—UDC 2300 Controller has a sealed faceplate suitable for
hosedown applications

The UDC 2300 provides a low priced,
1/4 DIN sized alternative for many
applications. Its new features
include:

Universal AC power supply,
RS485 ASCII or Modbus



RTU

communications option,

Input/Output isolation, and

Isolated Auxiliary Current
output.

These features when combined with
the new Accutune

II



tuning with

Fuzzy Logic overshoot suppression,
result in price/performance
leadership in the performance
segment positioned below the
UDC 3300 Controller.

For the many thousands of satisfied
UDC 2000 users, UDC 2300 is
downward compatible with existing
UDC 2000 applications and
installations. It even uses the same
case; therefore, it can be easily
inserted into existing panel
installations.



Modbus is a trademark of AEG Modicon

Features/Options

High Accuracy—Typically ±0.25% of
full scale input with a typical resolution
of 15 bits.

Analog Inputs—Two inputs are
available. The first input accepts all
thermocouple, RTD, mA, mV, and
voltage types (See Table 1.).
Alternatively, the second input is a
high level input and can be used as a
remote setpoint, for data acquisition, a
parameter to be alarmed on. All input
types are configurable. All inputs are
sampled six times per second (every
166 ms). These two inputs are
isolated from all other inputs and
outputs, but not from each other.

Dual Setpoints - Simple push-button
selection allows quick switchover from
primary to alternate setpoint with
minimal operator confusion.

Manual/Automatic Modes—
Bumpless, balanceless transfer
between control modes. Available with
a Dual Display option and SP
Programming option.

Features/Options,

continued

Accutune II™—This standard feature
provides a new, truly plug and play
tuning algorithm, which will, at the
touch of a button or through a digital
input, accurately identify and tune any
process including those with
deadtime and integrating processes.
This speeds up and simplifies start-up
plus allows retuning at any setpoint.

Fuzzy Logic—This standard feature
uses fuzzy logic to suppress process
variable overshoot due to SP
changes or externally induced
process disturbances. It operates
independently from Accutune

II



tuning. It does not change the PID
constants, but temporarily modifies
the internal controller response to
suppress overshoot. This allows more
aggressive tuning to co-exist with
smooth PV response. It can be
enabled or disabled depending on the
application or the control criteria.

CE

Mark—Conformity with 73/23/EEC,

Low Voltage Directive and
89/336/EEC, the EMC Directive as a
standard feature.