MES system, abbreviated as Manufacturing Execution System, is a management information system aimed at the workshop level. It can monitor and optimize the production process in real time, improve production efficiency and quality, and achieve effective execution of production plans.

The classification of MES systems mainly includes the following types:

Specialized MES, a system developed for a specific domain problem, such as workshop maintenance, production monitoring, limited capacity scheduling, or SCADA;

Integrated MES can be integrated with upper level transaction processing and lower level real-time control systems, suitable for multiple industries such as aviation, assembly, semiconductor, food and hygiene, etc;

Integrated MES, which applies modular application component technology to the development of MES systems, has features such as customization, reconfigurability, scalability, and interoperability, making it easy to integrate between different vendors and protect legacy systems, as well as plug and play functions;

The intelligent second-generation MES ensures the automation of workshop production through the intelligence distributed in the equipment, and obtains more data through more accurate process status tracking and more complete data recording to facilitate production management;

The next generation of MES emphasizes production synchronization (collaboration), supports networked manufacturing, and uses MES engines to provide real-time production information and process management for factories in one and several locations to coordinate all production activities of the enterprise. It establishes a process oriented, agile, effective organization and hierarchical management to achieve synchronization of enterprise production and operation.

The principle of MES system is to achieve real-time monitoring and optimization of the production process through data collection, transmission, processing, analysis, and feedback, as well as data exchange and integration with upstream and downstream systems. The core of an MES system is the MES engine, which is responsible for processing production data, executing production logic, generating production reports, providing production guidance, and supporting production decisions.

The functions of the MES system mainly include the following aspects:

Homework plan, accept ERP production plan, or MES production plan, comprehensively arrange and insert orders based on product process, inventory quantity, production line operation, etc., distribute to various workstations, monitor production situation, and adjust homework plan at any time;

Workshop management, real-time recording of processing time, completion quantity, number of non-conforming products, daily working hours of employees, completion quantity, etc. for each batch of products;

Production management, monitoring the production process, controlling and guiding the production, inspection, maintenance, and delivery processes of various product processes, while improving operational efficiency and eliminating the occurrence of operational errors, achieving refined management and control of the production process;

Material management, which manages the movement, buffering, and storage of materials (raw materials, parts, tools) and consumables. Through online inventory and material barcode management, it manages the receipt, issuance, storage, and consumption of production materials, achieving material inventory, consumption, and usage management;

Equipment management, through a combination of automatic collection and manual assistance, manages production equipment, including equipment information input, equipment inspection and patrol, equipment operation monitoring, etc., to ensure the continuous and normal operation of the production process;

Data collection, through an automated collection process connected to production equipment, achieves centralized management and real-time collection of data, reduces manual input time and error rates, and improves data accuracy and collection efficiency;

Job monitoring, through material inventory monitoring, equipment status monitoring, production progress monitoring, and quality status monitoring, improves the sensitivity of on-site management;

Quality management, establishing a quality management system, providing timely measurement and dimensional analysis of products and manufacturing processes, ensuring and tracking the quality of raw materials, production, inspection, and delivery, improving product quality, tracking and managing defects and repair processes, and producing targeted quality improvement processes.

The revenue value of MES systems is mainly reflected in the following aspects:

Optimize production plans, refine production processes, make production plans more efficient and accurate, improve equipment productivity and work efficiency, and maximize energy savings in production;

Improve production efficiency, reduce production waste, improve production speed and quality, shorten production cycles, and enhance production capacity through real-time monitoring and optimization of the production process;

Improve production quality, increase product qualification rate, reduce defect rate, reduce rework and scrap, and improve customer satisfaction through comprehensive quality control and quality tracking;

Improve production management level, provide accurate production reports through real-time feedback of production data, support production decision-making, improve management effectiveness, and reduce management costs;

Improve production transparency, enhance the informatization level of the production site through visualization of the production process, enhance the controllability of the production process, and enhance the traceability of the production process.

The implementation effectiveness of MES systems mainly depends on the actual needs, current situation, and goals of the enterprise, as well as factors such as the selection, design, and deployment of MES systems. Generally speaking, the implementation effectiveness of MES systems can be evaluated from the following aspects:

The improvement of production efficiency, such as equipment utilization, production speed, production capacity, production cycle, and other indicators;

The improvement of production quality, such as the improvement of indicators such as product qualification rate, defect rate, rework rate, scrap rate, and customer satisfaction;

The reduction of production costs, such as raw material consumption, energy consumption, labor costs, management costs, maintenance costs, and other indicators;

Improvement of production management, such as accuracy of production plans, accuracy of production data, timeliness of production reports, effectiveness of production decisions, and other indicators;

The improvement of production transparency, such as the visualization, controllability, and traceability of production processes.