Siemens TALON Series, Technical Reference Manual, Page: 37 / 50

TX-I/O Island Bus

The AC power requirement of 160 VA exceeds the capability of a single TX-I/O
Power Supply module (96 VA).
‒ A Bus Connection Module or a second TX-I/O Power Supply Module is required
for this island.
‒ Since additional DC power is not required, a Bus Connection Module is
sufficient for this island.
NOTE:
The TX-I/O Power Supply and Bus Connection Module only supply 24 Vac to TX-
I/O Modules on the male bus connector; 24 Vac power does not pass through
these modules. If an island bus requires additional AC power, a Bus Connection
Module or a second TX-I/O Power Supply must be installed at a point in the
island bus ahead of the I/O modules whose Vac requirements exceed the output
of the first TX-I/O Power Supply. See the following figure.
TXS1.12F4
28.8 W
96 VA
24 Vac
(common to
Power Supply Module)
TXIO0082R1
24V 24V
CS CD
24V
T
CS CD
2
1 3 5 7 9 11 13 15
(1)
(1)
(2) (3) (4) (5) (6) (7) (8)
4
(2)
6
(3)
5
(4)
10
(5)
12
(6)
14
(7)
16
(8)
2
1 3 5 7 9 11 13 15
(1)
(1)
(2) (3) (4) (5) (6) (7) (8)
4
(2)
6
(3)
5
(4)
10
(5)
12
(6)
14
(7)
16
(8)
2
1 3 5 7 9 11 13 15
(1)
(1)
(2) (3) (4) (5) (6) (7) (8)
4
(2)
6
(3)
5
(4)
10
(5)
12
(6)
14
(7)
16
(8)
2
1 3 5 7 9 11 13 15
(1)
(1)
(2) (3) (4) (5) (6) (7) (8)
4
(2)
6
(3)
5
(4)
10
(5)
12
(6)
14
(7)
16
(8)
2
1 3 5 7 9 11 13 15
(1)
(1)
(2) (3) (4) (5) (6) (7) (8)
4
(2)
6
(3)
5
(4)
10
(5)
12
(6)
14
(7)
16
(8)
PS
2
1 3 5 7 9 11 13 15
(1)
(1)
(2) (3) (4) (5) (6) (7) (8)
4
(2)
6
(3)
5
(4)
10
(5)
12
(6)
14
(7)
16
(8)
2
1 3 5 7 9 11 13 15
(1)
(1)
(2) (3) (4) (5) (6) (7) (8)
4
(2)
6
(3)
5
(4)
10
(5)
12
(6)
14
(7)
16
(8)
2
1 3 5 7 9 11 13 15
(1)
(1)
(2) (3) (4) (5) (6) (7) (8)
4
(2)
6
(3)
5
(4)
10
(5)
12
(6)
14
(7)
16
(8)
2
1 3 5 7 9 11 13 15
(1)
(1)
(2) (3) (4) (5) (6) (7) (8)
4
(2)
6
(3)
5
(4)
10
(5)
12
(6)
14
(7)
16
(8)
1 2
CS CD
24V
T
CS CD
BCM
TXS1.EF4
0 W
96 VA
24 Vac
(common to
BCM Module)
2 x 1.7 W ea = 3.4 W
0 VA
DC = 3.4 W
AC = 0 VA
Island Bus
Total
2 x 1.8 W ea = 3.6 W
2 x 40 VA ea = 80 VA
(actuators)
DC = 8.1 W
AC = 80 VA
2 x 1.8 W ea = 3.6 W
2 x 40 VA ea = 80 VA
(actuators)
DC = 11.7 W
AC = 80 VA
module = 2.2 W
sensors = 2.4 W (4 x 0.6 W)
= 4.6 W ea module
DC = 20.9 W
AC = 80 VA
1 x 1.1 W
0 VA
DC 4.5 W
AC = 0 VA
6R 6R 8D 8U-ML 8U-ML 8U-ML 8U-ML 8X 8X
TX-I/O Island Bus Power Supply Example.
37
Siemens Industry, Inc. TALON TX-I/O Modules and Island Bus Technical Reference
588-587 CONFIDENTIAL: For internal use only 4/6/2010