2
03/2017 Subject to technical changes..
domat UC120
The communication bus is Modbus RTU over RS485, therefore the controllers are easily
to integrate into any SCADA or BMS system. Protocol description is available in a
separate document.
Technical data
Power
16...35 V DC (typical
24 V DC
)
Consumption
1400 mVA
Measuring range
-
20 ÷ 70 °C
Protection
IP20
Sensor accuracy
+/- 1,5 K (with software correction)
Input
Input current
Input voltage
for dry contact
2.4 mA
24 V DC, derived from the power voltage
Output
Maximum output current
Short-circuit current
Resolution
1x 0...10 V DC
10 mA (corresponding to 1 kOhm load)
50 mA, tolerant to permanent short-circuit
10 bit D/A converter
Setpoint correction
according to configuration, +/- 10 to +/- 1 K
Communication
RS485 separation
Baud rate
2 wire RS485 - Modbus RTU slave
optically separated up to 1000 V
selectable, 1200...
9600
...115200 bps
Display
LCD 60 x 60 mm
Terminals
screw terminals for 0,14
–
1,5 mm
2
wires
Cover
ABS, RAL9010,
Weight
0,13 kg
Dimensions
see below
Terminals
1
2
3
4
5
6
7
8
9
1: DI1
presence input (active when connected to
G0)
2: NC
not connected
3: AO1
0...10 V heating output
4: G0
power -, output
– reference point
5: NC
not connected
6: G0
power -, output
– reference point
7: G
power +
8: K-
communication RS485 -
9: K+
communication RS485 +
