Safety Controller Automated Configuration via Data Bus Interfaces

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Solution Overview

Problem

Current safety controllers for automated installations require complex and time-consuming configuration of communication relationships between control components, leading to increased development and implementation costs, as well as potential errors in configuration, which can impact failsafety and reaction times.

Innovation Solution

A safety controller with a data bus interface for interconnecting control components and a programming tool that automatically generates configuration data based on association data, allowing for simplified and automated configuration of communication relationships, reducing the need for manual intervention and enhancing failsafety and flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If distributed safety controllers are used with multiple spatially distributed control components, then hardware flexibility is improved, but configuration complexity increases

Engineering Contradiction:
Improvehardware flexibilityVSAvoidconfiguration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control components automatically determine their own configuration parameters by exchanging identification data through the data bus. Each component autonomously identifies itself and establishes communication relationships without requiring manual configuration, thereby reducing configuration complexity while maintaining hardware flexibility

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically determines configuration parameters (such as data bus interface settings and communication relationships) based on automatically exchanged identification data rather than fixed manual configuration. This parameter determination approach adapts to the actual hardware setup, reducing configuration complexity while preserving adaptability

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If manual configuration of communication relationships is performed, then configuration precision can be controlled, but time consumption increases

Engineering Contradiction:
Improveconfiguration precisionVSAvoidconfiguration time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The manual mechanical configuration process is replaced by an automated electronic identification and data exchange system. Control components automatically transmit and process identification data through the data bus to determine configuration parameters, eliminating time-consuming manual configuration while maintaining precision through systematic automated procedures

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system uses identification data (such as component addresses and communication parameters) that is automatically exchanged and copied between control components to establish configuration relationships. This copying mechanism enables rapid, error-free configuration without manual intervention, reducing time consumption while preserving configuration accuracy

Inventive Principle:
Principle #26Copying

3Measurement precision

If individual determination of input and output signals is required for each control unit, then control precision is improved, but device complexity increases

Engineering Contradiction:
Improvesignal assignment precisionVSAvoidconfiguration complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Each control component autonomously determines its own input and output signal assignments by exchanging identification data with other components on the data bus. This self-service approach eliminates the need for complex manual signal mapping while maintaining precise signal assignment through automated identification and association processes

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9188964B2Safety controller for controlling an automated installation and method for generating a user program for a safety controller
Publication Date: 2015.11.17 PILZ GMBH & CO KG
  • US9188964B2 patent drawing
  • US9188964B2 patent drawing
  • US9188964B2 patent drawing

AI summary

A safety controller for controlling an automated installation in accordance with a user program has a plurality of control components. At least some of the control components have a respective data bus interface. The data bus interface is designed to receive and send data. The safety controller also has a data bus to which the plurality of control components are connected via the respective data bus interfaces for the purpose of interchanging data. A configuration interface is designed to receive configuration data ascertained on the basis of association data generated by a programming tool. The configuration data determine at least one characteristic of the data bus or of at least one data bus interface.