Patent · US Active

Safety circuit and method for testing a safety circuit in an automation system

US11353506B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

WAGO Verwaltungsgesellschaft mit beschrankter Haftung · DE

Inventors

Alexander BUELOW · Stadthagen, DE
Christian Voss · Geretsried, DE
Torsten Meyer · Mainschhorn, DE

Key dates

Filing date	Oct 11, 2019
Grant date	Jun 7, 2022
Priority date	—
Expiry date	Sep 4, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH03M1/12
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A safety circuit for the multi-channel processing of an input signal. The safety circuit includes an analog-to-digital conversion device having a first analog input and a second analog input and at least one digital output for processing the input signal. Furthermore, the safety circuit has a test device which is set up to apply a test signal at the first and/or second input of the A/D conversion device in such a way that the test signal superposes the input signal such that the test signal dominates the input signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.