US Patent 7764620 Diagnosis of redundant signal output channels connected in parallel
Patent 7764620 was granted and assigned to Siemens Aktiengesellschaft on July, 2010 by the United States Patent and Trademark Office.
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The invention relates to a device and a method for testing for wire breakage with a redundant signal output. To ensure the most fail-safe output in particular of a digital signal, whilst at the same time supplying a diagnosis function, it is proposed that two digital output modules should be connected in parallel, in particular with a diode integrated in each channel. The diagnosis function is enabled by a driver, which, in the event of a target value for the digital signal of logical “1”, connects the channel with a logical “1”, while setting a channel connected parallel thereto briefly to logical “0” and at the same time carrying out an interrupt test on the channel with logical “1”.
US Patent 07764620 Diagnosis of redundant signal output channels connected in parallel US Patent 7764620 Diagnosis of redundant signal output channels connected in parallel
US Patent 07764620 Diagnosis of redundant signal output channels connected in parallel
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