Index 
438  UDC3500 Universal Digital Controller Product Manual  3/07 
D 
Data Security ......................................................5 
Data Transfer..................................................345 
Deadband ...............................................138, 147 
Decimal Point Location ...................................176 
Declaration Of Conformity.................................10 
Demand Tuning ................................................72 
Dewpoint...........................................84, 192, 238 
Diagnostic .......................................................171 
Diagnostic Alarm.............................................171 
Diagnostic Messages......................................198 
Diagnostic/Failsafe Outputs ................................5 
Digital Input (Remote) Operation ....................258 
Digital Input Combinations ..............................158 
Digital Input Option .........................................219 
Digital Input Prompts For Multiple Set Point 
Programs ....................................................158 
Digital Input Selections....................................153 
Digital Inputs .................................................3, 13 
Digital Inputs Option Connections.....................40 
Digital Output Status...............................108, 111 
Dimensions .......................................................20 
Direct Acting Control...............................137, 146 
Display – Register Addresses.........................430 
Display Indicators................................................7 
Display Set Up Group .....................................176 
Dual Relay Output For Time Duplex .................37 
E 
Eight Segment Characterizer......................92, 94 
Elapsed Time..................................................203 
Electrical Considerations...................................22 
Electrical Noise Precautions .............................22 
Electromechanical Relay Output.................35, 41 
Email Configuration Screen ............................182 
EMC Classification............................................10 
Emissivity........................................119, 122, 125 
Enclosure Rating...............................................10 
End Segment Number.....................................245 
Environmental And Operating Conditions .........16 
Equipment You Will Need To Calibrate...........278 
Error Codes.....................................................211 
Error Messages...............................................198 
Estimated Motor Position................................236 
Ethernet ..............................................................8 
Ethernet Communications Address.................272 
Ethernet Communications Failure...........328, 329 
Ethernet Communications Option With Adaptor 
Board ............................................................38 
Ethernet Communications Option Without 
Adaptor Board...............................................39 
Ethernet Configuration Screen........................181 
Ethernet Connection .......................................269 
Ethernet Status ...............................................264 
Ethernet TCP/IP Communications Interface .....15 
Ethernet TCP/IP Protocol................................160 
External Interface Option Connections..............40 
External Setpoint Program Reset....................155 
External Wiring..................................................23 
F 
Factory Calibration..................................291, 303 
Failsafe Function Prompt ........................237, 238 
Failsafe Manual Mode.....................................308 
Failsafe Mode..........................................139, 147 
Failsafe Mode..................................................238 
Failsafe Output Value..............................139, 147 
Failsafe Output Value......................................237 
Failsafe Output Value For Restart After A Power 
Loss ............................................................237 
Failure Modes .................................................... 5 
Fast Tune........................................................... 5 
Feedforward Multiplier.......................................82 
Feedforward Multiplier........................................ 2 
Feedforward Summer........................................82 
Feedforward Summer......................................... 2 
Field Wiring.....................................................278 
Filter................................118, 121, 124, 127, 130 
First Current Output Calibration Procedure.....295 
Flow Totalizer..................................................216 
Frequency (Hz) .................................................16 
Function Code 20............................................338 
Function Code 21............................................342 
Function Codes 20 And 21..............................336 
Function Prompts..............................................45 
Fuzzy Logic........................................................ 6 
Fuzzy Overshoot Suppression ..................72, 212 
G 
Gain ............................................................50, 54 
Gain 2 .............................................51, 52, 55, 56 
Guaranteed Soak............................................247 
H 
Healthwatch ................................................4, 241 
Healthwatch Data............................................265 
Healthwatch Data - Reset ...............................266 
Healthwatch Timers And Counters..................178 
Heat/Cool (Duplex Tune).................................... 6 
High Scaling Factor...........................................85 
High Select........................................................82 
Hlai Inputs 2 And 4 Connections.......................32 
Hlai Inputs 3 And 5 Connections.......................33 
Hot Start..................................61, 64, 66, 70, 246 
Hydrogen Content.............................................86 
Hysteresis (Output Relay) ...............................139 
I 
Identification Number ......................................177 
Infrared............................................................... 8 
Infrared Communications................................... 9 
Infrared Communications..................................15 
Input 1 – Register Addresses..........................399 
Input 1 Actuation Type ....................................116 
Input 1 Calibration Procedure..........................289 
Input 1 Connections ..........................................29 
Input 1 High Range Value ...............................117 
Input 1 Low Range Value........................118, 121 
Input 1 Set Up Group ......................................116 
Input 2 – Register Addresses..........................401 
Input 2 Connections ..........................................30 
Input 2 Set Up Group ......................................120 
Input 3 – Register Addresses..........................403