Single Display Functionality - Honeywell UDC 2300 User Manual

Universal digital controller

Hide thumbs Also See for UDC 2300:

Table of Contents

Operation

4.3 Single Display Functionality

Introduction

A UDC2300 instrument, which has been configured with a '0' for software

options (i.e., DC230x-xx-x0-xx), will only have a single display capability. This

means that the displayed value of PV, Setpoint, Setpoint2, Remote Setpoint,

Input 2, Output, Bias, Aux Out, and Deviation will appear on the top display and

a prompt identifying the value will appear on the bottom display.

Access the Values

Pressing the display key will cycle through all applicable values (configuration

dependent). One minute after the last press of the display key, the display will

revert to a configured default display. The default display is configured in the

Input 1 Setup Group, and has three selections:

Active Setpoint (SP)

Process Variable (PR Y)

Process Variable with no bottom display prompt (PR n).

Exceptions

There are three exceptions to the above rules:

The displays for PID SET, Timer and Setpoint Ramp will appear the same as on

a dual display model and, when displaying Timer or Ramp values, the default

display switchover feature is disabled.

Auto-only Mode

The single display model is Auto only mode. The Auto/Manual key has no effect

on controller mode. As a result of this, the Failsafe mode is always non-latching.

While a Failsafe condition exists, the controller output will assume the Failsafe

value. When the Failsafe condition goes away, normal automatic operation

continues.

UDC2300 Universal Digital Controller User Manual

4/00

Table of Contents

Show Quick Links

Table of Contents