Modular Control Network Architecture for Secure DCS Connectivity
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Solution Overview
Problem
Current industrial distributed control systems (DCS) face challenges with network complexity, security vulnerabilities, and the explosion of device stock-keeping units (SKUs), leading to inefficient operations and high maintenance costs.
Innovation Solution
A modular control network architecture that integrates a control component with a processor, expansion components for connectivity, and a security component to regulate access, enabling flexible configuration and enhanced security within the DCS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network functions are manufactured into separate hardware components, then functionality is provided, but device complexity and SKU explosion increase
Solution Approach 1:
The patent combines multiple separate network functions (firewall, routing, switching, network address translation) into a single integrated network appliance. This consolidation reduces the number of discrete hardware components needed in the network, thereby decreasing device complexity and reducing SKU explosion while maintaining comprehensive network functionality.
Solution Approach 2:
The network appliance is designed as a universal device capable of performing multiple network functions simultaneously. It can act as a firewall, router, switch, and network address translator within a single platform, allowing one device to replace multiple specialized components and reduce overall system complexity.
2Adaptability or versatility
If multiple separate network components are deployed, then network functionality is achieved, but maintenance costs and operational efficiency decrease
Solution Approach 1:
By merging multiple network functions into a single appliance, the patent simplifies deployment and reduces the number of devices that need to be configured, monitored, and maintained. This consolidation improves operational efficiency by reducing maintenance overhead and simplifying network management while preserving comprehensive network capabilities.
3Ease of operation
If traditional network architectures are used in DCS, then connectivity is provided, but security vulnerabilities increase
Solution Approach 1:
The network appliance incorporates security functions such as firewall and network address translation as built-in, pre-configured capabilities that are activated by default. This preliminary integration of security measures ensures that security is established before network operations begin, protecting the distributed control system from vulnerabilities inherent in traditional network architectures while maintaining ease of connectivity.
Data Source
AI summary
An apparatus and system is disclosed connected to at least one input/output (I/O) module and to at least one controller of an industrial distributed control system. The apparatus and system comprises a control network module having a control component that uses a processor to execute operating software that implements operating configurations for the control network module. At least one I/O port is connected to the control component that is configurable by the operating software to enable port configurations to connect the at least one I/O module to the control network module. An expansion component connected to the control component has at least one expansion port connected to the at least one controller. The expansion port connects the at least one controller to the control component for communicating data and control signals to and from the at least one controller to the at least one I/O module. A security component regulates access to the apparatus based upon one or more security attributes.