Industrial I/O Backplane With EMC Slots for Multi-Protocol Integration
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Solution Overview
Problem
The integration of Ethernet-based communication protocols into existing process control systems with an installed base of traditional field devices is challenging due to the need for synthesizing various communication protocols within the process control network, particularly in environments with conventional I/O devices.
Innovation Solution
An I/O device is configured with a backplane and electronic marshalling components (EMCs) that support multiple communication protocols and physical layers, allowing seamless integration of both traditional and advanced protocols, including Ethernet, through a unified I/O device architecture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate I/O devices are used to support different communication protocols, then protocol compatibility is achieved, but device complexity increases
Solution Approach 1:
The patent combines multiple protocol-specific I/O devices into a single unified I/O device that supports multiple communication protocols (HART, Fieldbus, Profibus, Ethernet/IP) through a shared backplane architecture. This consolidation reduces the number of separate devices while maintaining protocol compatibility through protocol conversion capabilities.
Solution Approach 2:
The unified I/O device is designed with universal functionality to support multiple communication protocols simultaneously. The device includes multiple communication ports and protocol conversion capabilities that allow a single device to replace multiple specialized I/O devices, achieving both protocol compatibility and device reduction.
2Adaptability or versatility
If traditional I/O devices are used in existing process control systems, then system stability is maintained, but adaptability to new protocols like Ethernet is limited
Solution Approach 1:
The I/O device incorporates dynamic protocol conversion capabilities that allow it to adapt to different communication protocols (HART, Fieldbus, Profibus, Ethernet/IP) as needed. The system can dynamically switch between protocols and integrate with both traditional and advanced protocols, providing flexibility while maintaining stable operation through a robust backplane architecture.
3Device complexity
If a unified I/O device architecture is implemented, then device complexity is reduced, but the difficulty of detecting and measuring communication protocol differences increases
Solution Approach 1:
The unified I/O device is segmented into distinct functional modules, each dedicated to a specific communication protocol (HART module, Fieldbus module, Profibus module, Ethernet/IP module). This segmentation allows the device to maintain protocol-specific functionality while providing a unified external interface, making it easier to detect and measure protocol differences through modular architecture.
Data Source
AI summary
An I/O device is configured to couple a plurality of process control field devices to a process controller controlling a process in an industrial process plant. The I/O device includes a backplane and a plurality of electronic marshalling component (EMC) slots. The EMC slots are each configured to receive a respective EMC and to receive either of (i) a first-type EMC associated with a first communication protocol or (ii) second-type EMC associated with a second communication protocol. The I/O device also includes I/O processor module slots, each communicatively coupled, via the backplane, to each of the EMC slots and to each of a first one or more connectors and a second one or more connectors in each of the EMC slots. The I/O device further includes communication ports, each communicatively coupled to the I/O processor module slots via the backplane.