Field Device Control via Virtual Tool Links for Fast Setup

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Solution Overview

Problem

The existing automation systems require time-consuming and error-prone setup processes when connecting new tools to control devices, especially in industrial applications, as they need to adapt machine applications and parameters for each tool, which limits efficiency and increases downtimes during tool changes.

Innovation Solution

A method that automatically establishes a control link between a control device and a selected tool device using virtual link units, eliminating the need for manual adaptation of machine applications and allowing efficient coupling through physical ports or wireless connections, enabling rapid switching between tools without interrupting processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual setup and adaptation of machine applications is performed for each tool device, then control precision and reliability are improved, but setup time and system downtime increase

Engineering Contradiction:
Improvecontrol reliabilityVSAvoidsetup time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The control device pre-stores multiple virtual link units corresponding to different tool devices before actual tool connection. When a tool is connected, the system automatically selects and activates the corresponding virtual link unit without requiring manual setup, thus maintaining control reliability while eliminating setup time

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent creates virtual copies (virtual link units) of tool connection interfaces within the control device. These virtual link units replicate the functionality of physical connections, allowing the system to simulate and adapt to different tool devices software-wise without physical reconfiguration, thereby reducing setup time while maintaining control precision

Inventive Principle:
Principle #26Copying

2Adaptability or versatility

If multiple physical interfaces are provided for different tool devices, then adaptability and versatility are improved, but device complexity and cost increase

Engineering Contradiction:
Improvetool device adaptabilityVSAvoidphysical interface complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control device uses a single physical interface that can connect to multiple different tool devices, combined with multiple virtual link units that provide device-specific communication protocols and parameters. This universal physical interface approach maintains adaptability to various tools while significantly reducing the number of physical interfaces needed

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The virtual link units act as intermediary layers between the single physical interface and different tool devices. They translate and adapt communication protocols, enabling a universal physical interface to work with diverse tool devices without requiring dedicated physical interfaces for each tool type

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If manual parameter communication and set-up is performed for each tool, then measurement precision and control accuracy are improved, but productivity and efficiency decrease

Engineering Contradiction:
Improveparameter communication accuracyVSAvoidtool change efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The system automatically performs parameter communication and setup procedures when a tool device is connected. The control device autonomously selects the appropriate virtual link unit and configures parameters without human intervention, maintaining communication accuracy through pre-stored precise parameters while dramatically improving tool change efficiency

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

All tool-specific parameters and communication settings are pre-configured in the virtual link units before tool connection. When a tool is connected, the system immediately activates the corresponding pre-configured parameters, ensuring measurement precision without requiring time-consuming manual parameter communication, thus boosting productivity

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11209787B2Method and control device for controlling a field device
Publication Date: 2021.12.28 OMRON CORP
  • US11209787B2 patent drawing
  • US11209787B2 patent drawing
  • US11209787B2 patent drawing

AI summary

A method for controlling a field device coupled to an automation network, in which the field device has an associated tool device selected from a group of predetermined tool devices, includes the steps of: coupling the selected tool device to a control device having a physical port device; choosing a virtual link unit from a group of virtual link units included in the control device as a function of the selected tool device, wherein each of the virtual link units corresponds to one of the predetermined tool devices; and establishing a control link between the chosen control device and the selected tool device being associated to the field device via the physical port device using control data included in the chosen virtual link unit.