Patent ID: 6784571
Filing Date: 2004-08-31
Classification: G05B,H03K

Abstract:
A method of fail-safely shutting down an industrial machine, the method comprising the steps of:providing an electronic safety switching device having at least a first and a second signal processing channel, supplying the first and the second signal processing channel with input signals from a safety sensor, processing the input signals redundantly by means of the first and the second signal processing channel for generating output signals, and supplying the output signals to an actuator that interrupts the machine, wherein the first signal processing channel is constructed using first integrated semiconductor structures having a first width, and the second signal processing channel is constructed using second integrated semiconductor structures having a second width, and wherein the first and the second semiconductor structures are arranged monolithically on a common semiconductor substrate, the semiconductor structures of each signal processing channel being spaced apart physically by a multiple of their width from the semiconductor structures of every other signal processing channel.