domat UI0 BL Series User manual

domat UI0xx 01/2017 Subject to technical changes. 1
UI0xxBL
Communicative room units and
sensors with backlight display
Summary
The UI...BL room unit range is a family of universal communicative human-
machine interface for control of HVAC units and plants, and IRC controllers. The
units communicate over Modbus RTU / RS485 and they can be used as open
system components with majority of building control system and controllers.
Compared to the old series UI09x, these types dispose of knob and display blue
backlight function and more accurate sensors.
Application
ripening and cooling boxes, datacenters, controlled climate storage rooms,
alarm messaging systems etc.
systems with fancoils, convectors, floor and radiator heating, AHUs, air
conditioning units.
control of boilers, DHW, heating circuits, building controls in general
monitoring of room temperature and humidity
with a SCADA system: temperature, humidity and status recording, remote
control.
Function
The units acquire temperature and optionally relative humidity in room, temperature
correction (knob) and required operation status which is set by push of the button or
in menu. In the configurable menu following values can be set and displayed:
-temperature, actual temperature correction
-humidity (actual value only at room units containing the humidity sensor)
-time (only display at room units with RTC)
-basic setpoint - day
-basic setpoint - night
-outside temperature for heating enable
-DHW temperature
-heating curve type (1...4)
-operation mode (Residential with Day, Night, Time schedule, Off, or Hotel /
Office with Comfort, Standby, Party, Off)

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-fan stage (Auto, Off, St.1, St. 2, St. 3)
-A/C mode (Auto, Heating, Cooling, Off, Fan only)
-weekly scheduler: 7 days, up to 6 events per day
-another 5 variables (air quality, fan speed etc.) –each has a profile where max.
and min. values, step, number of decimals, and symbol set are defined.
It is also possible to set / reset any of the LCD symbols on the display over Modbus.
The turn / push knob has three basic functions:
instant edit (turning the knob) –settings of one predefined analogue value,
usually room temperature correction
quick edit (short push) –change of predefined state, e.g. Presence (Comfort /
Standby / Off), Air condition (Auto / Heating / Cooling / Fan only / Off) etc.
long push –jump to menu where values are listed by turning the knob, short
push selects the value to be edited, and the value is changed by turning the
knob followed by short push for confirmation.
After definable inactivity time, the display goes back to its basic state with rolling
display of selected values (e.g. actual temperature and humidity).
Backlight
function
Types UI0xxBL dispose of knob and display blue backlight function. It is possible to set
brightness 0-100 % separately for knob and display. If user make some action with
knob, display and knob shine for defined time. All of the functions could be set from
Modbus master.
The unit Modbus address and functionality is defined over the RS485 interface with
service software ModComTool which is free for download at http://domat-
int.com/en/downloads/software To interface the room unit to the computer use the
USB/485 converter M080, RS232/RS485 converter R012, or any suitable RS485
converter.

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____________________________________________________________________
Technical data
Power supply
24 V AC +/- 20%, 1 W
Temperature measuring range
-20 ... 70 °C (accuracy ±1 ˚C)
Humidity measuring range
digital sensor 10 ÷ 90 %rH accuracy ±3%
Protection
IP20
Inputs (specific types only, see table below)
2x potential-free contact (dry contact) against G0,
24 V AC, 5 mA
Outputs (specific types only, see table below)
1x - 2x solid state relay, zero switching, for AC load
24 V AC, max. 0.4 A, AC1, general usage, non-
inductive load according to EN 60947-4-1,
galvanic isolation 1.5 kV
Setpoint
according to configuration, +/- 10 to +/- 1 K
Communication
RS485 - Modbus RTU, slave
selectable speed 1200 ... 115200 bps, parity and
bits are set in service SW
default 9600/N/8/1
The interface is optically separated 1 kV (except
for UI010 and UI010BL).
Display
LCD 60 x 60 mm, symbol set see above
Terminals
recommended wire cross-section 0,14 –1,5 mm2
Cover
ABS, RAL9010, other colours
Weight
0,13 kg
Dimensions
90 x 115 x 30 mm, see below
Ambient conditions
According to DIN EN 60721-3-3. Climate class 3K5
(-5 to +45 ° C, 5% to 95% RH non-condensing
humidity)
Storage conditions
According to DIN EN 60721-3-1 Climatic class 1K3
(-5 to +45 ° C, 5% to 95% non-condensing relative
humidity).
Standards conformity
EMC ed.3 EN 61000-6-2: 2005, EN 55022 ed.3:
2010 (industrial environment)
Electrical safety EN 60950-1 ed.2: 2006 + A11:
2009 + A12: 2011 + A1: 2010 + A2: 2014 + Opr.1:
2012
Restriction of hazardous substances EN 50581:
2012
EU legislation
Council Directive 2014/35/EC, The Low Voltage
Directive (LVD)
Council Directive 2014/30/EC, Electromagnetic
Compatibility (EMC) Directive
Council Directive 2011/65/EC, RoHS2 Directive

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Terminals
1
2
3
4
5
6
7
8
9
As seen when removing the display part.
The wiring goes towards the center of the
unit so that the cable can be brought
through the aperture in the middle of the
bottom part.
UI010BL, UI0x1BL (no hardware inputs /
outputs)
1: NC not connected
2: NC not connected
3: K- communication RS485 -
4: K+ communication RS485 +
5: G0 power –common point
6: G0 power –common point
7: G power
8: -- connector not installed
9: -- connector not installed
UI0x2BL (2 binary inputs, one binary SSR
output)
1: DI1 input1
2: DI2 input2
3: DO1 output 1, 24 V AC against G0
4: NC not connected
5: G0 power, output –common point
6: G0 power, output –common point
7: G power
8: K- communication RS485 -
9: K+ communication RS485 +
UI020BL, UI0x5BL (2 binary inputs, 2
binary SSR outputs)
1: DI1 input 1
2: DI2 input 2
3: DO1 output 1, 24 V AC against G0
4: DO2 output 2, 24 V AC against G0
5: G0 power, outputs, inputs –
common point
6: G0 power, outputs, inputs –
common point
7: G power
8: K- communication RS485 -
9: K+ communication RS485 +

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Type table
Type
LCD
Knob
DI
DO
t
rH
RTC
Type
UI010BL



-
-


UI011BL



-
-


UI012BL



2
1



UI020BL



2
2



UI051BL


-
-


UI052BL


2
1



UI055BL


2
2



Units with no knobs are used as indicators, optionally with remote controlled inputs /
outputs. Process control algorithms (activating of the outputs by increased / decreased
temperature, humidity etc.) must be implemented in a master controller.
Installation
Units are intended for operating in a normal and chemically non-aggressive
environment. They do not need any servicing or maintenance. Install them in a vertical
position at places where they can be operated easily and measure correct values of
temperature and humidity, i.e. in the height of about 150 cm, with no direct sunlight
or other heat / cool source (AHU outlets, refridgerator, electrical appliances). The
device consists of two parts: bottom with screw terminal block and cover containing
PCB, display, and the knob. The bottom part is fixed by 2 or 4 screws to any flat surface
or a flush-mounting box Ø 50 mm. At the back of the bottom there is an aperture for
cabling. The bottom should be installed and cabling connected first, and the upper part
inserted after the construction works have been finished to prevent damage to the unit.
Opening the
cover
When removing the display part, proceed as follows:
-press gently the side parts of the unit and pull the right of the display part by
several milimeters
-pull the left of the display part
-pull the display part and remove it from the bottom.
Do not bend the display part too much, the connector pins could be damaged. The locks
are only at the sides of the display part, not at the top nor bottom.

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Dimensions
All dimensions in mm.
Display
Over Modbus, it is possible to set / reset
the complete symbol set except for the 7
segment digits, „Error“ and „Setting“
texts, and symbols of °C, °F, %, and rH.
Those are part of the configurable menu
profiles. The register description is
available in a separate document Room
units UI... –Communication description.
LCD symbol set (see in the picture).

domat UI0xx 01/2017 Subject to technical changes. 7
DIP switches
Back of the PCB
BUS END: if ON, the bus is terminated (if
last device on the line)
USR: not used, reserved for future
applications
INIT: sets the controller into default state
and sets bus address to 1, baud rate to
9600. To init, proceed as follows:
- connect the device over RS485 to a PC
with the ModComTool config tool
- set INIT to ON
- apply power (use only the connector
without bottom)
- find the controller in the tool (Scan)
- set INIT to OFF
- in the ModComTool, open the controller
window
- click the Init button in the tool
- remove and apply power
RoHS notice
The device contains a non-rechargeable battery which backups the real-time clock and
part of the memory. After the device is not operable, please return it to the
manufacturer or dispose of it in compliance with local regulations.

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Changes in
version
01/2017 —The first datasheet version.