Graphical Function Blocks for Safety Relay Configuration

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Solution Overview

Problem

Industrial safety relay configuration and programming are complex and often difficult to interpret and troubleshoot, especially as the number of terminals grows, due to cumbersome development interfaces and lack of intuitive configuration tools.

Innovation Solution

A graphical interface system for configuring industrial safety relays that includes a graphical interface component for displaying function block elements, allowing users to interact and configure parameters, and a configuration component that edits the configuration program based on user input, with features like terminal selection windows organized by categories and intelligent limiting of user selections to enforce design consistency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional configuration interfaces are used for safety relays, then comprehensive configuration capabilities are provided, but the interface becomes cumbersome and difficult to interpret and troubleshoot

Engineering Contradiction:
ImproveConfiguration interface usabilityVSAvoidConfiguration interface complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The configuration interface is segmented into functional blocks representing different safety relay functions. Each function block can be independently configured, visualized, and troubleshooted, transforming a monolithic complex interface into manageable modular units that improve usability while maintaining comprehensive configuration capabilities.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the number of terminals in safety relay increases, then more functionality is available, but configuration and troubleshooting become more difficult

Engineering Contradiction:
ImproveTerminal functionalityVSAvoidConfiguration difficulty
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The terminal configuration is organized into hierarchical categories and groups, adding a dimensional structure to the terminal management. This allows users to navigate and configure terminals systematically through organized groups rather than dealing with a flat, overwhelming list, making it easier to manage increased terminal functionality.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If comprehensive configuration options are provided, then design flexibility is improved, but design consistency becomes harder to enforce

Engineering Contradiction:
ImproveDesign flexibilityVSAvoidDesign consistency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system incorporates feedback mechanisms that monitor configuration choices and provide guidance to maintain design consistency. The graphical interface includes validation and guidance features that give real-time feedback to users, ensuring that configuration options, while flexible, adhere to consistency requirements for reliable safety relay operation.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP2891937B1Graphical function blocks for a safety relay configuration system
Publication Date: 2020.02.26 ROCKWELL AUTOMATION TECH INC
  • EP2891937B1 patent drawingFigure 1
  • EP2891937B1 patent drawingFigure 2
  • EP2891937B1 patent drawingFigure 3

AI summary

A safety relay configuration system for configuring safety functions to be carried out by a safety relay is provided. The configuration system comprises a number of features that facilitate intuitive and simplified configuration of an industrial safety relay, including but not limited to features that guide the user through the configuration process using an intuitive sequential procedure that provides feedback and prompts based on user interaction, enforce design consistency throughout the configuration project by intelligently limiting user selections, and visually organize configuration and status information in a manner that efficiently utilizes display space and allows the user to quickly evaluate available configuration options.