10
STA_STH_ 4804200 _02
MODBUS Electri-
cal connection
Through the door named “Field
Bus” application, WRL is able to
monitor several Modbus slave.
Remember to add at the end of a
line resistance of 120 ohms betwe-
en Tx + and Tx-.
STA/H
C4
NO8
NO9
NO10
NO11
NO12
RX-/TX-
RX+/TX+
GND
Vout
C1
NO1
NO2
NO3
C2
NO4
NO5
NO6
NO7
C3
NC7
J7
J8
J9
J10
J11
J12 - group 1
J13 - group 1
J14 - group 2
J15 - group 3
RX-/TX-
RX+/TX+
GND
GN
D
T+
T
-
GN
D
T+
T
-
GN
D
Tx
+
T
x-
230V
50Hz
CA
RE
L
Dar
a
06 N
S:
N
. A0
0
1
RO
HS
A
T
A
Code A
T
A
GN
D
Tx
+
T
x
-
230V
50Hz
CA
RE
L
Dar
a
06 N
S
:N. A
001
RO
HS
A
T
A
Code A
T
A
GN
D
T
x+
T
x-
230V
50Hz
CA
RE
L
Dar
a
06 N
S
:N. A
0
01
RO
HS
A
T
A
Code A
T
A
GN
D
Tx
+
Tx
-
230V
50Hz
CA
RE
L
Dar
a
06 N
S
:N. A
001
RO
HS
A
T
A
Code A
T
A
GN
D
Tx
+
Tx
-
230V
50Hz
CA
RE
L
Dar
a
06 N
S:
N
. A0
0
1
RO
HS
A
T
A
Code A
T
A
ON 1 2 3 4
ON 1 2 3 4
Zona 2
Zona 3
Zona 1
Addr
1
Addr
2
Addr
4
Addr
5
Addr
3
Zona 2
Zona 2
Zona 3
Zona 3
FIELD BUS
RX-/TX-
RX+/TX+
GND
STA/H
ATTENTION:
To change the Modbus address (STA
/ H) press + FAN POWER for 3 secon-
ds. Enter the password 22 and change the
parameter “Addr”.
Addr
1
FOR ELECTRICAL CONNECTION
ALWAYS REFER TO WIRING ON UNIT
(INCLUDED).
Summary of Contents for STA
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