2005613_a•en•2017-09-01
We reserve the right to carry out improvements
24
Sensor Splitter
5.5 Connecting multiple
weather stations
In units with a WAREMA climatronic
®
, up to 3 WAREMA climatronic
®
weather
stations can be connected. This requires a separate hub.
BK RD
WT YE
Terminating resistor 120 Ω
DC
24 V
230 V
AC
Supply line
230 V AC
L
N
NYM-J 3x1.5
BK RD
WT YE
Terminating resistor 120 Ω
Terminating resistor 120 Ω
WT
RD BK
JY(St)Y 2x2x0.8 mm ø
WT
RD BK
A
B
0V
4xA
WG 26 C UL BK
Weather station 1
A BK
B RD
I- 7513
RS-485 Hub
Va
riable Baud Ra
te
300,...9600,...115K
Va
riable Data
Fo
rmat
(R)+Vs
(B)GND
Data+
Data–
Three-
Wa
y 3000V Isolation
Data2+
Data2–
Data3+
Data3–
Data+
Data–
4xA
WG 26 C UL BK
Weather station 2
A BK
B RD
4xA
WG 26 C UL BK
Weather station 3
A BK
B RD
Junction box
On-site
120 Ω
120 Ω
120 Ω
B RD
A BK
120 Ω
0V WT
24V YE
0V WT
24V YE
A
B
0V
JY(St)Y 2x2x0.8 mm ø
Sensorbus
climabus 1
climabus 1
The ends of the bus lines must be terminated with a
120-Ω resistor. Insert the supplied resistors into the
bus terminals. The Wisotronic control panel and the
weather station multisense already have an integrated
120-Ω terminating resistor.
Total length of the RS485 bus: maximum 1200 m.
The bus voltage must be at least 20 V at each device.
The sensor splitter MASTER must be supplied via a
separate power supply unit. The maximum line length
between the weather station and the sensor splitter
MASTER is 200 m.
CAUTION
The 24-V output terminals (X10) of
the sensor splitters must not be
connected to each other.
The weather stations and the sensor
splitter MASTER must be supplied via a
separate power supply unit with its own
on-site fuse protection.
NOTE: The sensor splitters connected to
the sensor bus only receive weather
data when the weather station
and
the
MASTER are in operation.
Te
rminatin
g
resis
to
r
in
te
grated
Te
rminatin
g
resis
to
r
in
te
grated
Te
rminatin
g
resis
to
r
in
te
grated
DC
24 V
230 V
AC
Supply line
230 V AC
L
N
NYM-J 3x1.5
D1
X6
S2
X5
1 2 3 4
ON
0V 24V A B
24V 0V B1 A1
X10
X11
D1
X6
X5
0V 24V A B
Sensor Splitter n
SLAVE
(Encoding Switch1 OFF)
S2
1 2 3 4
ON
24V 0V B1 A1
X10
X11
Sensor Splitter 1
Master
(Encoding Switch 1 OFF)
Fig. 14
Connection of multiple WAREMA climatronic
®
weather stations (only in units with a WAREMA climatronic
®
)