Method for testing an electronics unit
AssigneeEndress + Hauser GmbH + Co. KG
InventorsUdo Grittke, Axel Humpert, Dietmar Frühauf, Harald Schäuble
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Abstract
A method for testing an electronics unit, especially an electronics unit of an apparatus for ascertaining and/or monitoring a process variable, wherein the electronics unit has a plurality of electrical components. At least a part of the electrical components is grouped into at least one group, and this group is supplied with a query signal. A response signal is received from the group, and the response signal is evaluated. Furthermore, the invention relates to an apparatus for determining and/or monitoring a process variable.
Claims9
A method for testing an electronics unit of an apparatus for ascertaining and/or monitoring a process variable, said electronics unit having a plurality of electrical components, said method comprising the steps of:
- grouping at least one part of the electrical components into at least one group;
- supplying a query signal to the group;
- receiving a response signal from the group;
- and
- evaluating the response signal by comparing a measured value of the response signal with a desired value, thereby making a prediction concerning future behavior of the components of the group, from which the response signal was received, wherein:
- the testing is carried out when the apparatus has been placed in an application as part of monitoring or as a part of predictive maintenance.
An apparatus for ascertaining and/or monitoring at least one process variable, comprising:
- at least one sensor element;
- at least one electronics unit;
- and
- at least one control unit, wherein:
- said electronics unit includes a plurality of electrical components;
- said at least one control unit is embodied in such a manner, that when the apparatus has been placed in an application, as a part of monitoring or as a part of predictive maintenance it supplies at least one group of at least a part of the components with a query signal, and receives a response signal from the group;
- and
- said at least one control unit evaluates the response signal by comparing a measured value of the response signal with a desired value, thereby making a prediction concerning future behavior of the components of the group from which it received the response signal.
Dependencies are inferred from the claim text.