US 11,237,934 B2Granted

Method for error management in bus communication and bus communication system

AssigneeKROHNE Messtechnik GmbH

InventorJulian Krämer

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Abstract

A method for error management in bus communication is disclosed. A first bus subscriber generates a first bus message and writes a bus error code into a bus data area of a first bus message. The second bus subscriber identifies the error by evaluating the bus error code. The first bus subscriber stores an error identification of the error, generates a first bus message and writes the bus error code into the bus data area of the first bus message. A second bus message with a request for transmission of the error identification is generated by the second bus subscriber. A third bus message is generated by the first bus subscriber and the stored error identification is written into the bus data area of the third bus message. The second bus subscriber identifies the errors by evaluating the bus error code and the error identification.

Claims19

Dependent claims

A method for error management in bus communication according to a bus protocol between a first bus subscriber and a second bus subscriber, wherein the bus protocol defines at least one bus error code for error and bus messages with a bus data area, the method comprising:

detecting an error by the first bus subscriber;
the first bus subscriber storing an error identification of the error in the first bus subscriber amending the bus error code, generating a first bus message and writing the bus error code into the bus data area of the first bus message;
transmitting the first bus message from the first bus subscriber to the second bus subscriber;
the second bus subscriber generating a second bus message with a request for transmission of the error identification triggered by the bus error code;
transmitting the second bus message from the second bus subscriber to the first bus subscriber;
the first bus subscriber generating a third bus message triggered by the request and writing the stored error identification into the bus data area of the third bus message;
transmitting the third bus message from the first bus subscriber to the second bus subscriber;
and
the second bus subscriber identifying the errors by evaluating the bus error code and the error identification.

6 more elements

A bus communication system, comprising:

a first bus subscriber;
a second bus subscriber;
and
a bus;
wherein the first bus subscriber and the second bus subscriber are designed for bus communication with one another via the bus according to a bus protocol;
wherein the bus protocol defines at least one bus error code for an error and bus messages with a bus data area;
wherein the first bus subscriber is designed to identify the error and is designed to generate a first bus message and to write the bus error code into the bus data area of the first bus message triggered by the detection of the error;
wherein the second bus subscriber is designed to identify the error by evaluating the bus error code;
wherein, triggered by the identification of the error, the first bus subscriber is designed to store an error identification of the error in the first bus subscriber amending the bus error code, and, triggered by receiving a request in a second bus message, is designed to generate a third bus message and to write the error identification in the bus data area of the third bus message;
wherein, triggered by receiving the bus error code in the first bus message, the second bus subscriber is designed to generate the second bus message with the request for transmission of the error identification, and is designed to identify the error for error management by evaluating the bus error code and the error identification.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/450,397Filed 24 Jun 2019
Priority: DE 102018115100.422 Jun 2018
Published: US 2019/0391894 A126 Dec 2019
Granted: 1 Feb 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G06F 11/0751
Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of…
G06F 11/3027
Monitoring arrangements specially adapted to the computing system or computing system component being monitored: where the computing system…
G06F 11/006
Error detection; Error correction; Monitoring: identification
G06F 11/0796
Responding to the occurrence of a fault, e.g. fault tolerance: safety measures, i.e. ensuring safe condition in the event of error, e.g. for…