User manual for - TEMPERATURE TRANSDUCER TRS-02a
Connections of power supply voltage and measurement signals are executed using the
screw connections inside of the unit’s housing (Figure 4.2 - 4.4).
Figure 4.2. Method of cable insulation replacing and cable terminals
Figure 4.3. Location of elements inside the module case
Last module in the network
must be terminated with
100÷150 Ohm resistor .
Figure 4.4. Connection of the module to the network
7
m
a
x.
2
m
m
6-7 mm
1 2 3 4
DATA-
DATA+
RS - 485
Us
Us = 9 ÷ 12V DC
GND
LED indicator
force
address
0xFF switch
Power
supply and
RS-485
connector
Pt100
Pt100
7 8 9
9
6 7 8
5
10
n.c.
n.c.
Pt 100
sensor
connector
A+
B-
terminator
(i.e.120 ohm)
GND
DATA-
DATA+
2 3 4 5
Us = 9 ÷ 12V DC
