MES (Manufacturing Execution Management System) Introduction

What is MES?

The Manufacturing Execution Management System (MES) is the bond of Enterprise CIMS Information Integration, and is the basic technical means to implement enterprise agile manufacturing strategy and implement agile workshop production. This paper introduces the concept and Function Model of MES, as well as the relationship between MES and ERP and on-site automation systems, and describes the typical structure of MES system. Summary The manufacturing industry is an important pillar industry of China's national economy and occupies a central position in the secondary industry. With China's accession to the WTO and economic globalization, China is becoming the center of the world's manufacturing industry. China's manufacturing enterprises are facing increasingly fierce competition at home and abroad. The most important thing is how to rapidly improve the core competitiveness of enterprises. It is to use informatization to drive industrialization, speed up the informatization process, and take the new industrialization path, achieve leapfrog development of productivity in the whole society. Throughout the application status of China's manufacturing information system, the focus of construction is generally on the ERP management system and shop floor control system (SFC. However, product marketing has quickly evolved from production-oriented to market-oriented and competitive-oriented over the past two decades. As a result, it has also posed challenges to the management and organization of production sites of manufacturing enterprises, relying solely on ERP and on-site automation systems is often unable to cope with this new situation. Manufacturing Execution System (MES) can fill this gap. Manufacturing Execution System (MES) is a production management technology and real-time information system that has developed rapidly internationally and is oriented to the workshop layer in the past 10 years. MES can provide users with a rapid response, elastic and refined manufacturing environment, help enterprises reduce costs, deliver on schedule, improve product quality and improve service quality. Applicable to different industries (household appliances, automobiles, semiconductors, communications, IT, and pharmaceuticals ), it can provide good enterprise information management for single mass production and hybrid manufacturing enterprises with Multiple Varieties of small batch production and mass production. At present, mes systems have become a common phenomenon for well-known foreign enterprises. Many domestic enterprises are gradually adopting this technology to enhance their core competitiveness. Return to the "fault" problem between the planning layer and process control layer of the enterprise. The traditional production process adopted by China's manufacturing industry over the years is characterized by "from top to bottom" Planned production. Simply put, from the planning layer to the production control layer: The company develops a production plan based on the order or market conditions-the production plan arrives at the production site-organizes production-product delivery. The focus of enterprise management informatization construction is mostly on the planning layer for production planning management and general affairs processing. For example, ERP is "in place" at the upper planning layer of the enterprise, which is used to integrate the existing production resources of the enterprise and compile the production plan. In the lower-layer production control layer, enterprises mainly use automated production equipment, automated testing equipment, and automated logistics and storage equipment to solve the production bottleneck of specific production (process, implement automatic control at the production site. Due to the changes in the market environment and the constant updates of modern production management concepts, the key to ensuring a sound operation of a manufacturing enterprise is to make the "Plan" work closely with "production, enterprise and workshop management personnel can grasp the changes at the production site in the shortest time, make accurate judgments and respond quickly, and ensure that the production plan is properly and rapidly corrected. Although ERP and on-site automation systems have developed to a very mature level, the ERP system serves the upper layer of enterprise management, generally, direct and detailed support is not provided for the management process at the workshop layer. The on-site automation system mainly monitors on-site equipment and process parameters. It can provide on-site inspection and statistical data to management personnel, but it is not a real management system. Therefore, there is a "fault" between the ERP system and the on-site automation system in terms of management information, which often seems helpless or weak in terms of scheduling and management requirements on the user's workshop. For example, it is difficult to provide comprehensive solutions to the following typical workshop management problems :? Can I trace all the production process information of this product based on the product number when a user complaint arises? Can it be immediately identified: raw material suppliers, operating machines, operators, processes, production time and key process parameters?? When multiple types of products need to be assembled in a production line, can the system automatically check and run prompts to prevent component assembly errors, product production process errors, product mixing and product delivery errors?? What are the five most common product defects on the production line in the past 12 hours? What are the quantity of defective products?? What are the quantity of each product in the current warehouse, in-process, and in-process processes? Which suppliers should they supply separately? When can the service be delivered in a timely manner?? How long is the production line and processing equipment in production, and how long is it stopped or idling? The main reason that affects the potential of equipment production is: equipment failure? Scheduling error? Material supply is not timely? Insufficient worker training? Or is the process indicator unreasonable?? Can we automatically collect statistics and analyze the product quality inspection data to precisely distinguish between random and abnormal fluctuations in product quality, and eliminate potential quality hazards in the bud?? Can Manual reports be abolished to automatically count the production quantity, pass rate, and defects in each process?Code ? MES is located at the execution layer between the planning layer and the on-site automation system. It is mainly responsible for workshop production management and scheduling execution. A well-designed MES system can integrate management functions such as production scheduling, Product tracking, quality control, equipment failure analysis, and network reports on a unified platform, by using a unified database and network connection, workshop management information services can be provided for production departments, quality control departments, process departments, and logistics departments. The system helps enterprises implement complete closed-loop production by emphasizing the overall optimization of the manufacturing process, and assists enterprises in establishing an integrated and real-time ERP/MES/SFC information system.