Patent ID: 11916695
Assignee: ENDRESS+HAUSER PROCESS SOLUTIONS AG
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A field device of automation technology having a function for checking a quality of a network connection, the field device comprising:
an operating electronics; and
a communication interface for connecting to a communication network having one or more network participants and for building a communication connection,
wherein a communication stack and a PHY are associated with the communication interface and the communication stack and the PHY are embodied continually to gain and to store communication information regarding the communication connection,
wherein the operating electronics is embodied to:
read out communication information provided as numerical values from the communication stack and from the PHY;
compute a communication state via an algorithm and using the communication information, wherein the computed communication state is a numeric value; and
classify the communication state into one of three statuses based on two cut-off values, wherein each of the three statuses indicates the quality of the network connection,

wherein the communication information includes: port diagnostic information; the port diagnostic information including general information about transmitted and received bytes; regarding a signal level and regarding a signal-to-noise ratio.