Method for monitoring operation of a binary interface and corresponding binary interface

摘要

A method of monitoring operation of a binary interface, wherein a source (1) sends information via an output (2) and at least two conductors (3) to an input (4) of a sink (5), one by means of one on the Output (2) switched voltage definable signal voltage level (U) either an on state - positive logic - or an off state - negative logic - and a voltage applied at the output (2) isolated voltage level (U) corresponding to an off or a On-state means and wherein an error detection with respect to the operation of the output (2) or the interface or a cross-circuit detection with respect to at least one conductor (3) preferably via a monitoring of the voltage applied to the output (2), is in terms of safe monitoring the operation of the binary interface without significant functional impairments characterized in that the on-state and / or the off-Z in each case at least two definable different signal voltage levels (U, U) and / or ground voltage level (U, U) or vice versa, and / or that at least one signal voltage level (U, U) and / or ground voltage level (U, U) for fault detection and / or cross-circuit detection is monitored for a deviation of its respective level height from the defined level height by a definable voltage amount and / or to a respective distinctness of the or each other signal voltage levels (U, U) and / or basic voltage levels (U, U). Furthermore, a binary interface, in particular for carrying out the above method, specified.