SPE Modular Interface for Multi-Protocol Field Device Expansion
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Solution Overview
Problem
Conventional modular interface systems for industrial automation and building automation rely on proprietary backplane buses, limiting the use of standard chips and communication protocols, making them inflexible and costly to expand.
Innovation Solution
A modular interface system utilizing a Single Pair Ethernet (SPE)-based bus system with twin-core lines and connectors, allowing for the connection of control devices and field devices through standardized SPE-based modules that support multiple communication protocols, enabling flexible expansion and integration of different technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a proprietary backplane bus system is used, then the system can be designed with manufacturer-specific communication protocols, but the adaptability to different communication standards and the ease of expansion are reduced
Solution Approach 1:
The patent implements a universal SPE-based bus system that can handle multiple communication protocols (PROFINET, Ethernet IP, Modbus TCP, etc.) through a single standardized interface. The SPE connector and communication module are designed to support various protocols, eliminating the need for separate proprietary bus systems for each protocol and enabling multi-protocol operation within one unified framework.
Solution Approach 2:
The system allows dynamic configuration and selection of communication protocols through software settings in the SPE communication module. The communication parameters can be changed without hardware modifications, enabling the system to adapt to different protocols by simply reconfiguring the communication module, thus resolving the contradiction between adaptability and complexity.
2Ease of manufacture
If proprietary backplane buses are used, then the system can maintain manufacturer-specific protocols, but the cost of expansion and integration of new technologies increases
Solution Approach 1:
The system is divided into modular components: SPE communication modules, I/O modules, and field devices, all connected through the standardized SPE bus. This segmentation allows individual modules to be independently selected, configured, and replaced based on specific needs, reducing expansion costs and improving integration flexibility compared to proprietary systems where entire bus systems must be redesigned.
Solution Approach 2:
The patent employs standardized SPE connectors and modules that can be easily replaced or upgraded without investing in custom proprietary infrastructure. The use of standard SPE technology enables cost-effective expansion by allowing operators to select from commercially available SPE components rather than being locked into expensive manufacturer-specific solutions.
3Adaptability or versatility
If standardized SPE-based modules are used, then the expansion flexibility and integration capability are improved, but the device complexity increases due to protocol conversion requirements
Solution Approach 1:
The SPE communication module serves as an intermediary between the standardized SPE bus and various field device protocols. It performs protocol conversion transparently, translating between SPE-based communication and proprietary field device protocols, thus enabling expansion flexibility while managing protocol conversion complexity within a single dedicated component rather than across the entire system.
4Ease of operation
If proprietary backplane systems are used, then the system can be optimized for specific applications, but the ease of operation and maintenance across different manufacturers' systems decreases
Solution Approach 1:
The standardized SPE-based interface provides universal compatibility across different manufacturers' field devices and control systems. The SPE communication module can operate with multiple protocols and device types, enabling consistent operation and maintenance procedures across heterogeneous systems, thereby improving ease of operation while maintaining cross-manufacturer compatibility.
Data Source
AI summary
A modular interface system having a modular SPE-based bus system with an SPE-based twin-core line and a plurality of SPE-based connectors, wherein a plurality of modules, each of which has an SPE-based connector, can be electrically and mechanically coupled to the SPE-based bus system by means of the SPE-based connectors.