User manual

Hardware description |Seite 18
2.3.5. Inputs
2.3.5.1. Registering short input pulses
Short input pulses between to read-out cycles are registered through an additional
logic and can be separately read-out.
2.3.5.2. Galvanically decouppled through optocouplers
AC input opto-couplers provide a galvanic isolation of the module towards the
connected equipment. They also provide a safe connection to the module for
reverse currents and high voltage peaks.
2.3.5.3. Visual control of the inputs (depends of module)
The state of each input is directly signalized by a separate LED. This simplifies to
detect and rectify wiring errors, because the signals on the cables are directly
observable.
Note: Only available for the USB-RELAIS-8 and USB-RELAIS-8_B module