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TX-I/O Modules
Universal I/O Modules (TXM1.8U and TXM1.8U-ML)
Supply Terminal Connections
20
Siemens Industry, Inc.
588-587
The TXM1.8U and TXM1.8U-ML universal I/O modules provide 8 points, which can be
individually software configured as digital input, analog input, or analog output to best
meet the specific application needs.
24
V
19
21
23
25
27
29
(5)
(6)
(7)
(1)
(2)
(3)
(4)
(5)
(6)
(1)
(2)
(3)
2
4
6
8
10
12
V
7
All Universal I/O modules provide:
AC supply voltage for peripheral devices, such as valves and actuators.
Green LED status per I/O point that varies in intensity according to the voltage and
current (directly proportional).
NOTE:
The neutral of analog inputs and outputs must always be connected to the
terminal associated with that I/O input.
All supply terminals are connected in the I/O module, not in the terminal base.
The neutral of a digital input (on Digital Input, Universal and Super Universal
modules) can be connected to any neutral terminal on the same module. Several
digital inputs can also share a neutral terminal on the same module.
AC/DC Output (Field Supply)
The following information applies to terminals 7, 15, 24, and 32.
Voltage
Admissable current per module
Fuse
CONFIDENTIAL: For internal use only
32
V
31
33
19
(8)
TXM1.8U
(7)
(8)
(4)
14
16
V
15
AC/DC 12 to 24 V
Max. 4 A (total for all four terminals)
4A, in TX-I/O Power Supply or
Bus Connection Module
TALON TX-I/O Modules and Island Bus Technical Reference
24
32
V
V
21
23
25
27
29
31
33
(5)
(6)
(7)
(8)
TXM1.8U-ML
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
+
(1)
(2)
(3)
(4)
2
4
6
8
10
12
14
16
V
V
7
15
4/6/2010
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