Today, MES systems are favored by more and more manufacturers as core functional modules. In the process of introducing the MES system, pre-implementation preparation is a very critical and often overlooked link. In particular, the previous data entry will directly affect the development of follow-up work. Therefore, data preparation is an essential lesson for enterprises to implement the MES system. The following is a brief introduction to the main data required for the MES system.
Mainly divided into EBOM (design) and MBOM (manufacturing). EBOM reflects the product structure and can be used to generate material requirements plans. MBOM embodies the manufacturing process of the product and can be used to generate job plans and guide actual production operations. EBOM is derived from the EBOM tree of PDM. The import method can be divided into tight integration and non-compact integration. The former PDM directly interfaces with the MES, and uses the integrated interface to import the required data. The use is simple, but the development amount is large, and the two systems affect each other. If the system upgrades in the future may affect the integration. The latter is derived from the PDM to generate the intermediate file, and then imported into the MES to generate the BOM tree. There is no direct data exchange between the two systems, and the development is relatively easy; even if the system is upgraded in the future, as long as the data format of the import and export is unchanged, the system runs. There is no impact, so it is also used by many companies. PDM can create a separate MBOM tree (some even have a planned BOM, purchase BOM, process BOM, etc.), and EBOM uses the same set of drawings and process files, but the node's composition is different, thus ensuring EBOM and MBOM data sources. Uniqueness.
Establishing MBOM in other systems involves the problem of synchronous maintenance of data, which is labor intensive and error prone. Many enterprises do not have a special MBOM but only EBOM. In MES, a simpler method can be considered: According to EBOM, the system automatically reads the process file to establish MBOM. In most cases, it can basically meet the usage requirements, which is a low-cost implementation. the way. When the BOM is imported into the MES by PDM, some node attributes (such as homemade, outsourced, and outsourced) also need to be imported at the same time.
2. Financial dataFinancial data can be imported into the MES accounting production cost. From the experience of many enterprises in implementing information projects, the data has a great impact on the success of the project. It is not uncommon for the data problems to be delayed or even failed. Therefore, the data is planned at the beginning of the project construction. Preparation is very necessary
3. Process documentationThe turnover system between the processes in the MES is automatically completed, and the process is based on the process flow, which is the basis of the MES operation. Process-based enterprises have a relatively simple process and a small number of processes, which can be created directly in the MES. Discrete manufacturing companies have many processes, and the workload created in the system is too large and it is repeated labor (process documents are available), which can be imported through process files.
In addition to the process flow, the process documentation should also have information such as equipment and working hours. Equipment information can be used to assign equipment to work hours. The working hours can be used to measure the workload. It is also the basis for calculating the production schedule. The automatic scheduling of the system requires high accuracy and integrity of the working hours, otherwise the scheduling result is not accurate. The process names in the process flow generally require standardization, so that the system can automatically assign work according to the process, calculate the process capacity and define the attributes of the process.
If the process name is not uniform, it will bring difficulties to the system operation. If the workload of re-modifying the process file is too large, a more convenient method can be adopted: a comparison table of new and old process names is established in the system, and the system automatically analyzes it.
4. Production planning and inventory dataThe production plan is generally generated in the ERP, imported into the MES through the integrated interface, and the status is returned to the ERP. If there is no ERP, the production plan can also be generated directly in the MES. The MES can be integrated with the material inventory management system, and the inventory data is automatically read out when the plan is generated, and the available quantities can be instructed at the same time.
5. List of materialsMaterial nesting is a difficult point in the production management of assembly-type enterprises, and needs to be considered in the MES. The bill of materials is the basis for the set, not only should reflect the composition of the product, but also the actual production process, that is, according to the production process, the ingredients can go to the process. The bill of materials can be automatically generated by MBOM, imported in a process file, or imported as a bill of materials file.
6. Technical documents such as drawingsIn order to reduce costs and the needs of technology and technology, many companies hope to achieve paperless production. Paper drawings, processes and other documents are no longer used in the production process. All files are read in the MES. In this case, the files need to be imported. MES.
7. DNC system dataInformation such as equipment, NC programs, and task completion in the DNC system can be imported into the MES, and the MES can import production task information into the DNC.
8. Ordering dataOrdering data generally comes from the sales department, which can be imported into the MES by the CRM system or manually.
With the preparation of these previous data, it has laid a solid foundation for the implementation of MES projects. As a leading provider of smart factory solutions, Easy Info has extensive experience in implementing MES projects. In view of the problems encountered by current manufacturing companies in the implementation of MES projects, we have more mature industry experience to share with you. In addition, we have always insisted on starting from the strategic drivers of the company, combined with the current status of the enterprise, to determine the strategy of enterprise intelligent manufacturing, and design detailed intelligent solutions to help them achieve transformation and upgrading.
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