The seven major functions of the mes system: 1. Workshop resource management, which mainly manages workshop personnel, equipment, tooling, materials, and working hours; 2. Inventory management, which manages all inventory materials in the workshop; 3. Production process management, realizing closed-loop visual control of the production process to reduce waste such as waiting time, inventory and over-production; 4. Production task management; 5. Workshop planning and production scheduling management; 6. Material tracking management, through barcode technology Manage and track logistics during the production process; 7. Quality process management.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
mes system refers to the manufacturing execution system (MES), which was proposed by the American AMR Company (Advanced Manufacturing Research, Inc.) in the early 1990s to strengthen the execution function of the MRP plan. Link the MRP plan with workshop operation site control through the execution system. The on-site control here includes PLC program controllers, data collectors, barcodes, various measuring and testing instruments, manipulators, etc. The MES system sets up the necessary interfaces and establishes cooperative relationships with manufacturers that provide production site control facilities.
Manufacturing Execution System MES can help enterprises realize production plan management, production process control, product quality management, workshop inventory management, project Kanban management, etc., and improve the enterprise's manufacturing execution capabilities.
Seven major functions of mes system:
1. MES system workshop resource management
Workshop resources are the basis of workshop manufacturing and production, and also the MES system The basis of operation. Workshop resource management mainly manages workshop personnel, equipment, tooling, materials, and working hours to ensure normal production and provides historical records and real-time status information of resource usage.
2. MES system inventory management
Warehouse management manages all inventory materials in the workshop. The materials in the workshop include self-made parts, outsourced parts, purchased parts, cutting tools, tooling and turnover raw materials, etc. Its functions include: retrieving warehouse stored materials through inventory management, querying current inventory status and historical records; providing inventory counting and warehouse allocation functions, setting alarms when the inventory of raw materials, cutting tools, tooling, etc. is insufficient; providing warehouse parts and components. Inbound and outbound operations include borrowing, returning, repairing and scrapping of tools/tools.
3. MES system production process management
Production process management realizes closed-loop visual control of the production process to reduce waste such as waiting time, inventory and overproduction. During the production process, various methods such as barcodes, touch screens, and machine tool data collection are used to track the planned production progress in real time. Production process management aims to control production, implement and execute production scheduling, track the status of work and workpieces in the workshop, and outsource processes that are currently incapable of processing. Realize management functions such as process dispatch, process outsourcing, and complete set, and can display workshop site information and task progress information in real time through the dashboard.
4. MES system production task management
Production task management includes functions such as production task reception and management, task progress display, and task query. Provide all project information, query specified projects, and display the entire production cycle and completion status of the project. Provide production progress display, display the tasks of today, this week and this month by day, week and month, and divide the stages of tasks by color to track project tasks.
5. MES system workshop planning and production scheduling management
Production planning is an important and difficult point in workshop production management. Improving planner scheduling efficiency and production plan accuracy is an important means to optimize the production process and improve production management levels.
The workshop receives the master production plan, based on the current production status (capacity, production preparation and in-process tasks, etc.), production preparation conditions (drawings, tooling and materials, etc.), as well as the priority level and planned completion time of the project and other requirements, reasonably formulate production and processing plans, and monitor production progress and execution status.
The advanced production scheduling tool (APS system) combines the real-time load status of workshop resources and the existing plan execution progress to form an optimized detailed production plan after balancing capabilities. It fully takes into account the processing capacity of each equipment and adjusts it at any time according to the actual situation on site. After completing automatic production scheduling, plan evaluation and manual adjustments are performed. In a production environment with small batches, multiple varieties and multiple processes, advanced production scheduling tools can be used to quickly respond to complex situations of emergency order insertion.
6. MES system material tracking management
Manage and track the logistics in the production process through barcode technology. During the production process of materials, barcode scanning is used to track the online status of materials and monitor the material flow process to ensure that materials flow quickly and efficiently during the workshop production process and can be queried at any time.
7. MES system quality process management
The process inspection and product quality management of the production and manufacturing process can realize the traceability of process inspection and product quality process, and carry out strict inspection of unqualified products and the rectification process. control. Its functions include: achieving comprehensive records of key elements of the production process and complete quality traceability, accurately counting the pass and non-conformity rates of products, and providing quantitative indicators for quality improvement. Based on the product quality analysis results, preventive maintenance is performed on out-of-factory products.
Other functions:
MES system production monitoring and management
Production monitoring enables multi-dimensional monitoring of production plan progress and equipment operation conditions. Monitor the production process and manage workshop alarm information, including alarm information for equipment failures, personnel absences, quality and other reasons. Problems can be discovered, reported and dealt with in a timely manner to ensure that the production process proceeds smoothly and under control. Combined with distributed digital control DNC system and MDC system for equipment networking and data collection. Implement equipment monitoring and improve bottleneck equipment utilization.
MES system statistical analysis
can conduct statistical queries on the data generated during the production process, and form reports after analysis to provide reference data and decision support for subsequent work. The data in the production process is rich, and the system can customize different statistical query functions according to needs, including: product processing progress query; workshop work-in-progress query; workshop and work station task query; product matching query; quality statistical analysis; workshop production capacity ( Manpower and equipment) utilization analysis; scrap rate/defective rate statistical analysis, etc.
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