Terminal Block Loop Checker for Automated I/O Wiring Validation
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Solution Overview
Problem
Manual loop checking of I/O loops in industrial process control systems is time-consuming and labor-intensive, requiring multiple people to verify correct wiring and configuration before commissioning and startup, which increases costs and time consumption.
Innovation Solution
An automated apparatus is installed on terminal blocks to connect and test I/O loops, using a dongle connected to terminal blocks that simulates signals based on input/output information from a mobile device, reducing the need for manual testing and streamlining the validation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual loop checking is performed by multiple people, then wiring verification accuracy is improved, but time consumption and labor cost increase
Solution Approach 1:
The patent replaces manual mechanical inspection with an automated electronic testing system. The apparatus uses electrical signal transmission through the I/O loop to automatically verify wiring correctness, substituting human operators with electronic measurement and detection mechanisms that provide both accuracy and speed simultaneously
Solution Approach 2:
The patent introduces an intermediary testing apparatus that connects between the control system and field instruments. This intermediary device facilitates automated signal transmission and reception, enabling indirect verification of wiring integrity without requiring direct manual inspection, thus resolving the contradiction between accuracy and time consumption
2Measurement precision
If manual loop checking is performed by multiple people, then wiring verification accuracy is improved, but manpower requirements increase
Solution Approach 1:
The patent replaces manual mechanical inspection with an automated electronic testing system. The apparatus uses electrical signal transmission through the I/O loop to automatically verify wiring correctness, substituting human operators with electronic measurement and detection mechanisms that provide both accuracy and speed simultaneously
Solution Approach 2:
The testing apparatus performs self-verification by automatically transmitting test signals, detecting responses, and determining wiring correctness without continuous human intervention. The system serves itself by autonomously completing the verification process, eliminating the need for multiple manpower resources while maintaining high accuracy
3Productivity
If automated testing apparatus is used, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent divides the automated testing apparatus into distinct functional modules: signal generation unit, signal transmission path, response detection unit, and analysis unit. Each module performs a specific function, allowing the complex testing system to be broken down into manageable components that can be independently understood and maintained, thus reducing the perceived complexity while maintaining high productivity
Data Source
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AI summary
An apparatus 350 is configured to be installed on a terminal block 212 to make an electrical connection to at least one I/O loop. The apparatus 350 includes a terminal section 360 having at least one pair of electrical terminals 365. The electrical terminals 365 are arranged to be connected to the terminal block 212 and to the I/O loop. The apparatus 350 further includes an electronic section 355 electrically connected to the terminal section 360 adapted to communicate with the I/O loop through the terminal section 360. The apparatus 350 further includes a latching arm 461 configured to be manually operated to retain the apparatus 350 to the terminal block 212.