Yarn Spindle Station-Passing Control During MES Disconnection
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Solution Overview
Problem
The challenge in chemical fiber production is the inefficient and bottlenecked station-passing of yarn spindles, which affects overall production pace and efficiency.
Innovation Solution
A system involving a Manufacturing Execution System (MES), a first Programmable Logic Controller (PLC), and multiple second PLCs, where the first PLC acts as an intermediate layer to manage and process operational data, enabling automatic station-passing even when disconnected from the MES, ensuring smooth operation and reducing manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the first PLC continuously communicates with the MES to obtain station-passing indication information, then the station-passing efficiency is improved, but the system reliability deteriorates when network disconnection occurs
Solution Approach 1:
The first PLC stores historical station-passing indication information and operational data in advance before network disconnection occurs. When disconnected from the MES, the PLC uses this pre-stored data to continue controlling station-passing operations, ensuring uninterrupted production flow and maintaining system reliability during network issues.
2Device complexity
If the system architecture is simplified by reducing the number of PLCs, then the device complexity is reduced, but the capability to handle multiple stations independently deteriorates
Solution Approach 1:
The system divides control functions between a first PLC for centralized data management and multiple second PLCs for independent station control. Each second PLC can autonomously control its assigned station using station-passing indication information from the first PLC, enabling independent multi-station operation while maintaining overall system coordination through the hierarchical architecture.
3Reliability
If manual intervention is increased to handle network disconnection scenarios, then the system reliability is improved, but the productivity deteriorates due to reduced automation
Solution Approach 1:
The first PLC automatically detects network disconnection status and switches to autonomous operation mode using stored historical data. The system self-manages the transition without requiring manual intervention, continuously generating station-passing indication information based on pre-stored operational data, thereby maintaining both reliability and productivity during network issues.
4Adaptability or versatility
If the first PLC processes and stores all operational data locally, then the adaptability to network conditions is improved, but the device complexity increases
Solution Approach 1:
The system extracts and stores only critical station-passing indication information and operational data in the first PLC's memory before network disconnection. By selectively extracting essential data rather than processing all possible information, the first PLC maintains network disconnection adaptability while minimizing the increase in device complexity through focused data storage.
Data Source
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AI summary
The disclosure provides a method and apparatus for controlling automatic station-passing of yarn spindle, an electronic device and a storage medium, relating to the technical field of chemical fiber intellectualization. The system for controlling automatic station-passing of yarn spindle includes MES, first PLC and second PLCs. The method for controlling automatic station-passing of the yarn spindle includes: obtaining (S201) by first PLC second operational data of target station from second PLC corresponding to target station and obtaining first operational data of target station according to second operational data; and if first PLC is disconnected with MES, recording (S202) by first PLC the first operational data and sending station-passing indication information to second PLC, so that second PLC controls target station to execute yarn spindle station-passing task based on station-passing indication information, where station-passing indication information is permission of station-passing.