Network Address Assignment via Address-Line Arbitration

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Solution Overview

Problem

Existing communication networks face challenges in efficiently assigning unique network addresses to devices, particularly in daisy-chain configurations, due to manual intervention requirements, which are time-consuming, error-prone, and costly.

Innovation Solution

A master control unit dynamically assigns network addresses to devices through a process of asserting address signals, receiving responses, and performing communication tests, eliminating the need for manual intervention and unique part numbers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual intervention is used to assign network addresses to devices, then each device can have a unique network address, but the process becomes time-consuming and error-prone

Engineering Contradiction:

Improveuniqueness of network address assignmentVSAvoidtime required for address assignment

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system enables self-service addressing where devices automatically obtain network addresses through the arbitration process. The master control unit manages address distribution automatically, and devices participate in the arbitration process themselves, eliminating the need for manual address assignment while ensuring uniqueness through the arbitration mechanism

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system performs preliminary actions by pre-configuring the arbitration protocol and address pool before actual device deployment. The master control unit is pre-programmed with addressing logic, and devices are pre-configured with arbitration capabilities, allowing rapid automatic address assignment without manual intervention during deployment

Inventive Principle:

Principle #10Preliminary action

2Reliability

If manual intervention is used to assign network addresses to devices, then each device can have a unique network address, but the process becomes error-prone

Engineering Contradiction:

Improveuniqueness of network address assignmentVSAvoidsimplicity of address assignment process

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The arbitration process incorporates feedback mechanisms where devices respond to address signals and the master control unit adjusts address assignments based on device responses. This closed-loop feedback ensures correct address assignment and allows for error detection and correction, improving reliability while maintaining operational simplicity

Inventive Principle:

Principle #23Feedback

3Reliability

If manual intervention is used to assign network addresses to devices, then each device can have a unique network address, but costs increase due to unique part numbers and inventory requirements

Engineering Contradiction:

Improveuniqueness of network address assignmentVSAvoidmanufacturing complexity and inventory costs

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The system applies universality by using identical hardware components for all devices that can function with any network address. The arbitration protocol and master control unit provide universal addressing capability, eliminating the need for unique part numbers or address-specific hardware variants. This reduces manufacturing complexity and inventory requirements while maintaining the ability to provide unique network addresses to each device

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Productivity

If automated address assignment is implemented, then manual intervention is eliminated and efficiency improves, but system complexity increases

Engineering Contradiction:

Improvespeed of address assignmentVSAvoidcomplexity of address assignment system

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system applies segmentation by dividing the addressing function into distinct modular components: the master control unit handles address management and arbitration coordination, while individual devices handle their own arbitration participation and address reception. This modular segmentation improves productivity through automated parallel processing while managing complexity through clear functional separation

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP4704407A1Assigning addresses to devices on a network

Publication Date: 2026.03.04 SCHNEIDER ELECTRIC IT CORP

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AI summary

A method of assigning addresses to devices on a network is presented. The method includes causing a master control unit to assert a first address signal on a first address line; causing a first device to transmit a first response to the master control unit via at least one data bus responsive to asserting the first address signal on the first address line; causing the master control unit to transmit a first network address via the at least one data bus to the first device responsive to receiving the first response; causing the master control unit and first device to complete a first communication test responsive to transmitting the first network address; and causing the master control unit to cease asserting the first address signal responsive to completing the first communication test.