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Siemens
TX-I/O™ Module system – Functions and operation
CM110561en_08
Building Technologies
Contents
2018-10-25
Contents
Contents and validity of this manual ............................................................. 3
Indicators and operator controls ............................................................... 7
Overview (example: super universal module) ............................................... 7
Module status LEDs ................................................................... 7
I/O status LEDs .......................................................................... 8
LCD display ................................................................................ 8
Override buttons ......................................................................... 9
Override status LED ................................................................. 10
............................................................................... 10
Function of the modules within the I/O subsystem ...................................... 10
Status indication, maintained contact (BI NO, BI NC / D20, D20R) ........... 12
Status indication, pulse contact (BI Pulse NO / D20S) .............................. 14
Status indication, pulse contact
(D20S, realized with BI Static)15
Pushbutton input (BI Push NO, BI Push NC) .............................................. 17
Multistate input maintained contact (MI Switch) .......................................... 20
Counting, pulse contact (CI Mech (10/25 Hz), CI El (100Hz) / C) ............... 22
General information on the digital outputs .................................................. 26
Maintained contact, switchover (BO Relay NO / NC 250V / Q250) ............ 29
Maintained contact, triac (BO Triac NO / NC) ............................................. 31
Maintained contact, bistable (BO Bistable NO / NC) ................................... 32
Pulse, on/off (BO Pulse On-Off / Q250-P250A-P) ..................................... 34
Multistate maintained contact (MO Steps / Q-Mx) ..................................... 37
Multistate pulse (MO Pulse / Q250-Px) ....................................................... 40
Three-position control signal (BO 3-Pos Relay, BO-3-Pos Triac / Y250T)) 42
PWM Pulse width modulation (BO PWM, with triac) ................................... 45
Default functions, disabling function ...................................................... 52
Table of the parameters that can be set (example: Desigo / CFC) ....... 54