Gateway Virtual Addressing for Foundation Fieldbus Linking Devices
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Solution Overview
Problem
Conventional asset management systems (AMSs) are limited in their ability to communicate with Foundation Fieldbus linking devices, typically only able to connect with a single Fieldbus Ethernet network and a limited number of linking devices, hindering effective identification and communication.
Innovation Solution
The introduction of a gateway device that utilizes virtual addresses to represent multiple Foundation Fieldbus linking devices, enabling enhanced communication capabilities for AMSs by allowing them to interact with a greater number of linking devices across multiple Fieldbus networks, and providing write protection and identification of both online and offline devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional AMSs communicate directly with Foundation Fieldbus linking devices via a single Fieldbus Ethernet network, then communication is simple and direct, but the AMS is limited to a small number of linking devices (e.g., up to eight) and cannot effectively manage larger networks
Solution Approach 1:
The patent introduces a gateway device as an intermediary between the AMS and multiple Foundation Fieldbus linking devices. The gateway maintains virtual addresses for numerous linking devices and manages communication routing, allowing the AMS to indirectly access many more devices than its direct communication limit would permit, thus resolving the contradiction between expanded adaptability and managed complexity
Solution Approach 2:
The patent adds a new communication dimension by implementing a two-layer architecture: direct peer-to-peer communication for fewer devices, and gateway-mediated communication for expanded device access. This dimensional expansion allows the system to overcome the eight-device limitation without requiring the AMS itself to become more complex
2Adaptability or versatility
If an AMS attempts to communicate with a large number of linking devices across multiple Fieldbus networks, then coverage and management capability improve, but communication complexity and system configuration difficulty increase
Solution Approach 1:
The gateway serves as an intelligent intermediary that handles the complexity of multi-network communication protocols, device discovery, and address management. This allows the AMS to access numerous devices across multiple Fieldbus networks while the gateway absorbs the operational complexity, maintaining ease of use for the end user
Solution Approach 2:
The gateway creates virtual representations (virtual addresses) of physical linking devices, allowing the AMS to interact with simplified device models rather than dealing with the full complexity of actual multi-network device communications. This copying approach maintains ease of operation while enabling broad network coverage
3Adaptability or versatility
If virtual addresses are used to represent multiple linking devices to an AMS, then communication capabilities are enhanced and device limits are overcome, but address management and routing complexity increase
Solution Approach 1:
The gateway acts as an address management intermediary, maintaining the mapping between virtual addresses (presented to the AMS) and physical device addresses. This intermediary function enables enhanced communication capability through virtual addressing while the gateway internally manages the address complexity, preventing it from propagating to the AMS or end users
Data Source
Figure 1
Figure 2A~2B
Figure 2C
AI summary
Systems (100) and methods (300) for identifying Foundation Fieldbus linking devices (115) are described. A pair of redundant Foundation Fieldbus linking devices (115) may be identified (305) by a gateway device (105) that includes one or more computers. A single virtual address representative of the pair of redundant linking devices (115) may then be determined (315) by the gateway device (105), and information associated with operation of at least one of the pair of redundant linking devices (115) may be provided (325) by the gateway device (105) to an external system (125). During the provision of information to the external system (125), the virtual address may be utilized to represent the at least one linking device (115).