Interpretation of LEDs of TSX EMF 16DT2 mixed I/O module
(Original Document)
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Operation
The following table describes how the LEDs of a TSX EMF 16DT2 module work.
LED
Function
Description
Illustration
0 to 7
State of inputs: inputs connected.
Green LED, the LED shows the state of the connected sensor.
SF1
Power supply fault or overload.
Red LED, (on in the event of an error).
16 to 23
State of outputs.
Two-color LEDs:
  • green if the outputs are not faulty and if their monitoring function is activated,
  • red if a short-circuit is detected.
US1
Power supply for outputs 16 to 19.
Green LED (on if power supply is active).
US2
Power supply for outputs 20 to 23.
Green LED (on if power supply is active).