Fieldbus I/O Module Telegram Segmentation for Self-Parameterization

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Solution Overview

Problem

Existing fieldbus systems require manual intervention for parameterization and error correction in I/O modules, which is labor-intensive and can pause productive operations, especially in safety-oriented systems where error avoidance and recognition are critical.

Innovation Solution

A system where the I/O module cyclically transmits diagnostic data and parameter sets over multiple telegrams, allowing the control module to derive diagnostic and parameter records, enabling self-parameterization and reducing manual intervention by using a serializing protocol for efficient data communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual intervention is used for parameterization and error correction in I/O modules, then diagnostic data can be obtained and errors can be corrected, but additional effort is required and productive operation may be paused

Engineering Contradiction:

Improveerror correction capabilityVSAvoidproductive operation continuity

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The I/O module automatically transmits diagnostic data and parameter sets to the control module without requiring manual intervention. The control module automatically receives and processes this data to detect errors and perform corrections, enabling the system to self-diagnose and self-correct while maintaining continuous productive operation

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system implements automatic feedback loops where the I/O module continuously transmits diagnostic data about its operational state to the control module. The control module processes this feedback and automatically adjusts parameters or triggers corrections when errors are detected, creating a closed-loop system that maintains reliability without pausing production

Inventive Principle:

Principle #23Feedback

2Device complexity

If diagnostic data is transmitted using existing fieldbus telegrams, then communication infrastructure is utilized, but bandwidth requirements may be exceeded and communication efficiency may be reduced

Engineering Contradiction:

Improvecommunication infrastructure utilizationVSAvoidbandwidth consumption

Core Design Contradiction:

Device complexityVSLoss of energy

Solution Approach 1:

The diagnostic data and parameter sets are segmented into individual bytes that are transmitted sequentially across multiple telegrams. Each telegram carries a portion of the data (one byte at a time), allowing efficient utilization of the existing fieldbus communication infrastructure without requiring excessive bandwidth in any single communication cycle

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The transmission of diagnostic data is organized into periodic cycles where the I/O module cyclically transmits different bytes of the diagnostic data and parameter sets across multiple telegrams. This periodic transmission pattern allows the system to distribute data transmission over time, efficiently utilizing available bandwidth while ensuring complete data transfer

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS11675717B2Transmission of diagnostic and/or parameter data between a control module and an input/output module

Publication Date: 2023.06.13 WAGO VERW GMBH

AI summary

Illustrated is an I/O module which is configured for cyclically transmitting and receiving telegrams, wherein an area in which a data record can be transmitted in its entirety is provided in the telegrams, as well as an area capable of containing only a part of a data record, so that said data record is transmitted, distributed over several telegrams.