4
4
C
C
H
H
A
A
N
N
N
N
E
E
L
L
A
A
N
N
A
A
L
L
O
O
G
G
U
U
E
E
T
T
R
R
A
A
N
N
S
S
M
M
I
I
T
T
T
T
E
E
R
R
5
5
O
O
F
F
3
3
0
0
1
1
2
2
0
0
-
-
1
1
8
8
8
8
-
-
1
1
2
2
T
T
Y
Y
P
P
E
E
S
S
I
I
L
L
B
B
U
U
S
S
-
-
T
T
X
X
4
4
A
A
(
(
G
G
)
)
U
U
S
S
E
E
R
R
'
'
S
S
M
M
A
A
N
N
U
U
A
A
L
L
I
I
s
s
s
s
u
u
e
e
:
:
0
0
5
5
1 GENERAL DESCRIPTION
The four channel analogue transmitter is part of a family of explosion protected DIN rail
mounting modules that transmit to and receive from an Austdac SILBUS field bus network.
The SILBUS-TX4A(G) can transmit up to four 4-20mA or 0.4-2.0V analogue signals on four
independent valid SILBUS channels. The SILBUS-TX4AG variant has been re-scaled to
accept 0.44-2.2V input signals only. See section 8 for more details on the SILBUS-TX4AG.
The four analogue inputs are galvanically isolated from the SILBUS network port. This
isolation allows the SILBUS-TX4A to provide many simple and highly effective solutions
when used in installations involving intrinsically safe and non-intrinsically safe circuits.
The transmitter is housed within a DIN rail mounting enclosure measuring 100mm (W) x
75mm (H) x 110mm (D). The front panel is located between the two top of enclosure
mounted terminal blocks to provide a clear view of the operation indicating LED’s. Two
LED’s are provided to show power and SILBUS network status.
The SILBUS-TX4A can be quickly and simply configured using a laptop computer running
Hyper Terminal and a small plug in programming adaptor. Each analogue input can be
independently programmed to any SILBUS channel address. Each analogue input can also
have it’s under range, hysteresis, digital fault channels and transmission protocol
configured by the user.
2 WARNINGS AND PRECAUTIONS
WARNING
•
If the SILBUS-TX4A(G) is used in a manner not specified by Austdac then the
protection provided by the SILBUS-TX4A(G) may be impaired.
PRECAUTIONS
•
Only qualified personnel shall install and service the SILBUS-TX4A(G).
•
Mains supply fluctuations are not to exceed ±10% of the nominal supply voltage.
SYMBOLS
AC SUPPLY
DC SUPPLY
