TX-I/O Modules
Technical Data for Analog Outputs on TX-I/O Modules TXM1.8X and
TXM1.8X-ML
Signal type Range Resolution
Voltage Y10S 0 љ10 V 1 mV
Current Max. 1 mA
Current Y420
(I/O points 5 through 8 only)
4 ... 20 mA 1 μA
Voltage ca. DC 15 V
Load resistance 0 ... 500 Ω
Digital Input Support
Digital input support includes voltage free/dry contacts and pulse counters up to 20 Hz.
NOTE:
Potential free (dry contact) for all points.
The neutral of a digital input can be connected to any neutral terminal on the
same module. Several digital inputs can also share a neutral terminal on the
same module.
Technical Data
Digital inputs are not electrically separated from the system electronics.
Mechanical contacts must be volt-free.
Counter inputs faster than 1 Hz that are routed for more than 32.8 ft (10 m) in the
same trunking as analog inputs must be shielded.
Contact sensing voltage 21.5 to 25 Vdc
Contact sensing current 1.0 mA (initial current 6 mA)
Contact resistance with contacts closed Max. 200Ω
Insulation resistance with contacts open Max. 50KΩ
Min. closing / opening
time [ms] including
bouncing
Max. bounce time
[ms]
Max. Counting
frequency
(symmetric)
Maintained contact 60 20
Pulse contact 30 10
Mechanical Counter 20 10 25 Hz
27
Siemens Industry, Inc. TALON TX-I/O Modules and Island Bus Technical Reference
588-587 CONFIDENTIAL: For internal use only 4/6/2010
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