Operating Instructions

7/54
Siemens TX-I/O™ Module system – Functions and operation CM110561en_08
Building Technologies Indicators and operator controls 2018-10-25
2 Indicators and operator controls
2.1 Overview (example: super universal module)
Connection terminals (No. 1 screwdriver for slotted or
recessed-head * screws)
with test point (1.8 ... 2 mm pins) and terminal number
Signal designation
Override status LEDs (yellow, types with local override only)
Address key and module status LED
LCD panel (not available on all types)
I/O point numbers
Override button (not available on all types)
I/O status LEDs (green – on certain types: three-color)
* Combined slotted / recessed-head screws from mid-2012
2.2 LED indicators
2.2.1 Module status LEDs
• The module status LED (green) is located on the I/O module under the transparent
address key. It shows the status of the module as a whole (as opposed to the
status of the I/O points):
Description
LED
Normal
ON
• Module OK, all functions working correctly
Inactive OFF • No module supply
• Plug-in module is in parked position
• Faulty module (hardware error)
Reminders / Errors
Various flashing patterns
For details about errors please refer to the section
"Indication, operation, and diagnostics" in the
TX-I/O™ Engineering and installation guide [6].