Operating Instructions

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Siemens TX-I/O™ Module system – Functions and operation CM110561en_08
Building Technologies Digital output functions 2018-10-25
An additional ON or OFF pulse can be generated (e.g. by means of the local override).
• Pressing one of the override buttons (n) or (n+1) in the middle enables/disables local
override
• When local override is active:
Pressing "+" for one of the I/O points generates an ON command (closes relay n+1)
Pressing "–" for one of the I/O points generates an OFF command (closes relay n)
• The I/O status LED of I/O point "n" or "n+1" lights up concurrently with the relay
activity.
• Local operation can be disabled in the configuration.
• The I/O status LED is ON when the relay is active.
• In the case of an error the module status LED and the I/O status LEDs assigned to
the function flash.
For details, especially in relation to flashing pattern and errors: refer to the section "Dis-
play, operation and diagnostics" in the TX-I/O™ Engineering and installation guide [6].
Local override
Display