HoneywellUDC1200 & UDC1700 Universal Digital Controllers Series Micro-Pro Specifications 51-52-03-35 June 2011

Overview 

The UDC1200 & UDC1700 are microprocessor-based 

1/16 DIN and 1/8 DIN controllers, which combine a 

high degree of functionality and reliability at low cost. 

They are fully dedicated to monitor and control 

temperatures, pressures and levels in a wide range of 

applications such as environmental chambers, 

furnaces, ovens, packaging machines and other 

applications in plastics and the food and beverage 

industries. The large and easy-to-read dual 4-digit 

display and tactile keypad make the UDC1200 and 

UDC1700 easy to configure and use. Their 

outstanding flexibility enables you to configure any unit 

for any application and change it if required. 

For the thousands of satisfied UDC1000/1500 users, 

the UDC1200/ 1700 controllers are downward 

compatible to existing UDC1000/1500 applications 

and installations. 

Features 

Dual display 

Two 4-digit displays with 7 LED segments, each 

configurable for: 

 PV and SP (non adjustable) 

 PV and SP (adjustable) 

 PV and Ramping SP 

 PV only 

Easier to configure 

Two different configuration levels (Configuration mode 

and set-up mode) provide easy access to parameters. 

A 4-digit security code prevents unauthorized changes. 

Moisture resistant front-face 

Meets NEMA 3 / IP65 front-face protection against 

dust and water. 

Universal input 

Accept seven different types of thermocouples, RTDs, 

current and voltage linear inputs. All inputs are configurable 

as standard. 

Universal power supply 

The UDC1200 and UDC1700 can operate on any line 

voltage from 90 Vac to 264 Vac at 50/60 Hz. A 24/48 Vac/dc 

model is available as an option. 

Easy upgrade 

All the option boards are jumper free and detected 

automatically by the instrument. 

Easy output selection 

All the outputs (including the control output) of the 

instrument can be changed to meet the exact 

customer’s needs. 

Alarm strategy 

Two soft alarms for PV, deviation high/low/absolute. A 

special loop alarm is also provided to detect faults in 

the control loop by continuously analyzing the PV 

response to the control output. Alarm inhibit is 

available on power up and setpoint switching. 

Manual/Automatic mode 

Manual control (via bumpless transfer) is enabled by 

simply pressing the front-face AUTO/MAN key. The 

“SET” LED flashes and the output power is displayed 

on the lower display. Output can be adjusted with the 

upper and lower keys. 

Pre-tuning and self-tuning strategy 

Pre-tuning is used to set up the PID parameters close 

to the optimum values, which the self-tuning algorithm 

uses to subsequently optimize the tuning parameters. 

Limit controller 

Packaged in 1/16 DIN, the UDC1200 limit controller is 

designed to provide a safety shut-off and optional 

alarm for use in a wide variety of applications. 

Up to three outputs 

The UDC1200 and UDC1700 provide up to three 

outputs for time and current proportioning, duplex 

mode (heat/cool), PV or SP retransmission, and 

alarms. 

Setpoint ramp 

The current setpoint can ramp to a new-targeted 

setpoint by way of a user defined ramp rate. 

Dual setpoint 

Dual setpoint option is available on the UDC1200 and 

UDC1700. The current setpoint is selected by a digital 

input. This option is exclusive with UDC1200 limit 

model remote alarm reset. 

Communication 

An optional RS485 communications interface is 

available on the UDC1200 and UDC1700. It provides a 

link for up to 32 units and a host computer through 

ASCII or Modbus RTU protocol at up to 19200 baud. 

Highly secure 

A non-volatile memory based on EEPROM technology 

ensures data integrity during loss of power supply, with 

retention of more than 100 years. A 4-digit security code 

prevents unauthorized or accidental change. 

UDC1700 UDC1200 

Upper display: 4 characters 

dedicated to show the PV. 

In configuration mode, it shows 

the parameter value or selection 

Lower display: 4 characters 

dedicated in normal operation 

mode to display the SP. In 

configuration mode, it displays 

the parameter name.

Selects manual or automatic mode. Becomes 

« Reset » on UDC1200 Limit model. 

Allows operator mode parameters to be scrolled. 

In combination with the «Upper» key, allows 

configuration mode or Setup mode to be entered. 

Increases setpoint, output or configuration 

parameter values. 

Decreases setpoint, output or configuration 

parameter values.

Optional Features 

The following can be selected via the Model selection 

Guide (see page 8):

 RS485 ASCII communication 

 RS485 Modbus RTU communication 

 Digital Input 

 Output 2 

 Output 3 

 Power Supply 24/48 Vac/dc 

Physical Description 

The UDC1200 controller is housed in a 110 mm (4.33 

inches) deep case with a standard UDC gray bezel. It 

can be mounted in a 1/16 DIN panel cutout. 

The UDC1700 controller is housed in a 100 mm (3.94 

inches) deep case and can be mounted in a 1/8 DIN 

panel cutout. By using the pre-assembled mounting 

fixture delivered with the unit, you can easily and 

securely install the controller into the panel cutout. 

Modular plug-in construction allows rapid access and 

saves time. All inputs and outputs are connected on 

the rear terminal block by screws. 

Operator Interface 

Four display combinations are offered to the operator. 

The upper 4-digit 7-segment display is always 

dedicated to monitor the PV. The lower display can 

show: 

 SETPOINT (read only) 

 SETPOINT (adjustable) 

 RAMPING setpoint (ramp mode) 

 BLANK 

Universal Inputs 

All input types are available on any unit. Selection 

among the various types of inputs is made by prompt 

configuration. As soon as the Process Variable 

reaches the value of the input range limit, the controller 

displays a message. A sensor break indication is also 

provided. A configurable digital filter is available from 

0.5 seconds to 100.0 seconds. 

Outputs 

Three types of outputs (RELAY, SSR driver or DC linear) 

are selectable for three outputs, through the model selection 

guide or by adding a plug-in module for outputs 1, 2 and 3. 

Outputs Algorithm 

The UDC1200 and UDC1700 are available with the 

following output algorithms: 

 Time proportional: 

ON/OFF or time proportional with 

electromechanical relay SPDT 2 A or SSR driver 

(open collector). 

 Current proportional: 

Supply directly proportional current or voltage 

signal to the final control elements which require 0-

20 mA, 4 20 mA, 0-10 V or 0-5 V. 

 Time proportional duplex: 

Three duplex modes can be selected, either 

ON/OFF duplex, time proportional duplex 

(heat/cool with two proportional bands, two cycle 

times and deadband) or TPSC. 

 Current proportional duplex: 

In addition to the first current/voltage output, a 

second similar output with its own proportional 

band is provided. 

 Current/Time or Time/Current duplex: 

Provides a variation of traditional time or current 

duplex mode by mixing current and time 

proportioning together. 

Control Algorithms 

Four control algorithms can be set up through the 

configuration menu: 

 On/Off  PID 

 PD + MR  TPSC 

The TPSC (Three Position Step Control) control algorithm is 

dedicated to control valve positioning without slidewire 

feedback from the motor shaft. 

Configuration 

There are two levels of configuration. The SET-UP 

mode allows modification of current parameters such 

as tuning parameters, alarm values, setpoint limit, 

ramp enable, auto-manual mode enable and autopretune enable. 

The CONFIGURATION mode is more oriented to unit 

personality: input selection, output 2 and 3 usage, 

alarm type, communication address and lockout code. 

The operator mode screens are only selectable via the 

configuration software only. For instance, the alarm 

value screen can be moved from setup mode to 

normal operator mode if desired. 

Control Mode 

Manual or automatic mode with bumpless transfer is 

standard feature. In manual mode, the operator can 

directly control the output through the two front face 

keys (raise and lower keys). The output value is 

monitored on the lower display. 

Alarms 

Outputs 1, 2 and 3 can be used as alarms. Two 

electromechanical single pole double throw relays can 

activate external equipment when alarm setpoints are 

reached. An LED is also activated on the front-face. A 

direct or reverse acting alarm output can be 

configured. A logical combination of the two alarms: 

OR, AND or hysteresis (active when both alarms are 

active and inactive when both alarms are inactive) can 

be set which associates the two alarms status before 

energizing the relay. In order to detect a defective 

control loop, the controller can supply special loop 

alarm control by continually monitoring the PV 

response to output demand. A timer is automatically 

set up when any output is on saturation mode. When 

the timer reaches twice the reset time with no PV 

response, the loop alarm is activated. With this soft 

alarm there is no need for a heater circuit breaker, 

saving wiring time and costs. 

Display 

Dual, four-digit LED display with decimal point location 

configurable up to three places for linear ranges only. 

Limit Controller 

The UDC1200 1/16 DIN limit controller provides a latched 

relay output which is activated when the process parameters 

either exceed or fall bellow the desired value, providing a 

failsafe cut-off which has to be manually reset before the 

process can continue. 

The UDC1200 limit controller can be configured to be either 

a “high limit” unit where the delay will de-energize when the 

PV is above the limit setpoint, or a “low limit”, where the 

relay will drop out when the PV falls below the setpoint. 

A LED indicator shows when limits have been exceeded, 

and when the relay is latched out. 

The optional digital input allows a remote reset function. 

Remote Setpoint Model 

The UDC1700 1/8 DIN "R" model controller has a second 

input available that accepts either a linear or potentiometer 

input signal as a remote setpoint. The input signals 

accepted are field-configurable and are: 0-5 V, 1-5 V, 0-10 

V, 2-10 V, 0-20 mA, 4-20 mA (factory set), 0-50 mV, 10-50 

mV, 0 100 mV, or 0-2000 ohms. This allows the controller 

to act as a "slave" controller accepting a setpoint value from 

a 'master' device such as a PLC or setpoint-programming 

controller (such as the DCP50, DCP100, DCP300, or 

DCP550 series). 

The UDC1700R also includes a standard digital input 

allowing remote switching between the local setpoint and 

the remote setpoint value. Also standard in this model is 

"fuzzy" autotune software that minimizes process variable 

overshoot when responding to a setpoint change. 

PC Software 

The UDC1200 & 1700 are supported with PC software 

allowing you to quickly configure your device using 

configuration wizards, or to perform diagnostics

Warranty/Remedy 

Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Contact your local 

sales office for warranty information. If warranted goods are returned to Honeywell during the period of coverage, Honeywell 

will repair or replace without charge those items it finds defective. The foregoing is Buyer's sole remedy and is in lieu of all 

other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. 

Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this 

printing. However, we assume no responsibility for its use. 

While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the 

customer to determine the suitability of the product in the application