Automation Control Assembly Module Sequence Verification
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Solution Overview
Problem
Existing control arrangements for automation systems face challenges in easily verifying the correct sequence of I/O modules, leading to potential wiring errors, especially when multiple identical modules are swapped, which can result in incorrect activation or deactivation of circuits.
Innovation Solution
A control arrangement with a test module that sends a test signal to each module in a predetermined sequence, using indicator elements that change state in response, allowing users to visually verify if the actual sequence matches the planned sequence without additional contacts, utilizing LEDs or display elements for clear visual feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If additional contacts are provided to determine or verify the sequence of I/O modules, then the sequence can be automatically assigned based on module type, but the sequence may be incorrectly recognized as correct even if modules have been swapped
Solution Approach 1:
The patent uses indicator elements (such as LEDs) that change color or illumination state to visually indicate the sequence position of I/O modules. When a test signal is sent to a module, its indicator element changes state to show its actual position in the physical sequence, allowing direct visual comparison with the planned sequence without relying on automatic assignment algorithms that may be fooled by identical module types
2Reliability
If manual assignment using unique identifiers such as serial numbers or MAC addresses is used, then the assignment of physical I/O modules to planned modules can be achieved, but the process is cumbersome for the user and not directly recognizable or verifiable
Solution Approach 1:
The patent replaces manual configuration methods (such as setting DIP switches or entering serial numbers) with an automated test signal transmission system. The control unit automatically sends test signals to modules in the planned sequence, and indicator elements automatically display the actual sequence, eliminating cumbersome manual operations while maintaining assignment accuracy
Solution Approach 2:
The patent implements a feedback mechanism where indicator elements on I/O modules provide visual feedback about their actual sequence position. The control unit sends test signals and observes which modules respond, creating a closed-loop verification system that automatically compares planned versus actual sequences and provides direct visual feedback to the user
3Productivity
If no verification method is used, then the control arrangement can be assembled quickly, but wiring errors may occur due to incorrect module sequencing
Solution Approach 1:
The patent performs sequence verification as a preliminary action during the assembly process itself. The control unit sends test signals to modules as they are being mounted or immediately after mounting, allowing verification to be done before final wiring is completed. This prevents wiring errors from occurring in the first place, rather than requiring later inspection
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables direct and easy verification of the correct sequence of I/O modules before, during, or after assembly, preventing wiring errors by creating a recognizable 'running light' effect that indicates matching or mismatching sequences, thus ensuring accurate module placement.
Implementation Method 1
Each series module (10, 20, 30, 40) has an indicator element (15, 25, 35, 45), in particular an LED, which can assume two distinguishable states
Data Source
Figure 1
Figure 2A~2I
AI summary
The invention relates to a control assembly (100) of an automation system, comprising at least two row modules which are arranged in a row one after the other and have an actual order, comprising a control and/or communication module (70) and/or an I/O module (10, 20, 30, 40), as well as a test module (80), the row modules each being equipped with an indicator element (15, 25, 35, 45) which can assume two distinguishable states. The invention further relates to a test method for such a control assembly.