Default Functions, Disabling Function; Null Function; Default Functions - Siemens TX-I/O TXM1.8D Functions And Operation

Application
Modules
Digital input modules
Universal modules
Super universal modules
Resistance measuring
module
Relay modules
Triac module
Blinds module
Wiring test
Application
52/54
Siemens
Building Technologies
7

Default functions, disabling function

7.1

Default functions

The default functions are downloaded into the modules before they leave the factory.
They permit reduced operation and convenient "functional testing" in the control panel
before the module parameters have been set.
The various modules have the following default functions:
Types
TXM1.8D, TXM1.16D
TXM1.8U, TXM1.8U-ML
TXM1.8X, TXM1.8X-ML
TXM1.8P
TXM1.6R, TXM1.6R-M,
TXM1.6RL
TXM1.8T
RXM1.8RB
The default functions (factory-set I/O module status) have been specially designed for
testing without a bus master. With configured modules, each I/O point would react
differently according to the signal type.
The default functions allow you to test the wiring that is connected to the I/O points, as
soon as the DC 24 V supply is switched on (no connection to a bus master is required).
When the module is powered, the module status LED flashes.
When additionally the address key is swiveled in, the default function is available.
7.2 Null function (Null Function)
The disabling function prevents local override of an I/O point. It should be configured to
decommission any unused I/O points.
There are no variables to set as parameters, and no island bus inputs or outputs.
TX-I/O™ Module system – Functions and operation
Default functions, disabling function
Default function Equivalent function
BI Default BI NO / D20
UIO Default Description see next page
UIO Default Description see next page
RI Default Description see next page
BO Default BO Relay NO 250V / Q250
BO Default BO Triac NO
MO Default 4 x MO Steps (2-stage) / Q-M2
CM110561en_08
2018-10-25