Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about how to analyze the differences between enterprises using ERP and MES integrated applications. The article is rich in content and analyzes and describes for you from a professional point of view. I hope you can get something after reading this article.

In recent years, many large and medium-sized enterprises are implementing the integrated application of ERP and MES systems, but they are faced with many problems in the specific process, which directly affect the success or failure of the project. For example, many enterprises do not have a clear distinction between the functional modules of ERP and MES, and even have fundamental misunderstandings. In view of this, a correct understanding of the main functions of ERP and MES and the discrimination of the essential differences in functions are of great significance to the implementation of system integration application projects and the promotion of overall informatization.

I. production and operation

The production and operation process of manufacturing enterprises mainly takes the manufactured and assembled products as the object, combined with the manufacturing requirements, mobilize the equipment and facilities needed by the organization to form mass production. The main goal of production operation management is to produce products that meet the needs of customers with the most economical consumption of people, property and materials. therefore, a vertical information spindle-production process that runs through manufacturing enterprises can be obtained. The production department of the company works out the main production plan according to the market demand plan, its own production capacity and resources, and issues it to the branch plant, workshop, production scheduling, preparation and other departments to allocate the required manpower, raw and auxiliary materials and equipment and other resources according to the main production plan to form the horizontal spindle of informatization. Establish the main structure from the vertical and horizontal axes, and then add our usual daily operation and management model according to the form of branches, so as to form the general information structure of manufacturing enterprises and play its guiding role.

II. Enterprise resource planning

Usually, the resource planning of manufacturing enterprises mainly takes corporate finance as the center, combined with supply chain, production logistics, human resources and asset management as the core to build the internal business system of ERP. The main application of management concept is in planning control, cost accounting, comprehensive budget and so on; the software module structure needs to have the ability of sharing and rapid deployment. In the implementation of enterprise information projects, it usually includes as many enterprise management Model as possible, so ERP also plays an important role in enterprise management. At the same time, ERP also has to coordinate WMS, CRM and MES for manufacturing execution process management. In the internal implementation process of manufacturing enterprises, the production, technical and financial departments are usually the core of the information data of the ERP, while the sales and purchasing departments are the source of the information data of the ERP, and other modules such as manpower and equipment are used as assistance, so that the information data stream can be efficiently transmitted and integrated within the ERP. In terms of production, the main production planning module makes the enterprise production plan according to the manpower, raw materials, equipment, process requirements and sales analysis provided by the enterprise management Model. Each enterprise management Model collects the information according to the standard generated by ERP and returns it to the system. ERP can complete most of the functions in production management, and on the surface, it has been fully integrated, but combined with our specific implementation process, it will lead to a deeper look at each production and assembly line of the enterprise. It is found that ERP only plays an important role in the business macro level, while it is MES that actually plays a role in the micro-level production line.

Manufacturing execution system

The system is a workshop-oriented manufacturing process management IT system. The integration, adaptability, openness and scalability of MES play an important role in improving the operation quality and process agility of workshop manufacturing process. From the perspective of the vertical axis of design and manufacturing and the horizontal axis of production preparation, in the product design stage, the product design information is integrated with product data management as the core, and then combined with ERP to form the product bill of materials, at the same time, the product assembly requirements and process parameter information are transmitted to ERP at the same time. After the operation of the main production plan, the planning and assembly requirements are compiled and sent to various branches and workshops according to customer requirements. After the assembly is completed, enter the warehouse and wait for the operation instructions out of the warehouse. Horizontal and vertical manufacturing data are connected to generate logistics and plant equipment, personnel and assembly process preparation information. The obtained production data are analyzed and integrated by MES and sent to different modules of different systems to form an information hub: provide production planning completion rate and manufacturing cost to ERP; and provide customer order production process to CRM. Provide market rejected product quality information to PDM to support product improvement and new product design.

With the deepening of the application of ERP, the relatively closed-loop information flow at first will constantly expose new information gaps, and the role of MES as an information hub is becoming more and more important. It provides reasonable resource scheduling and optimization for the production line internally, and the business function module can be divided into:

(1) manufacturing resource allocation and monitoring; (2) job scheduling; (3) assembly process and specification standards; (4) information collection; (5) on-site staff supervision; (6) product quality management; (7) process control; (8) equipment maintenance; (9) performance management; (10) production unit scheduling; (11) product tracking.

IV. The main differences between ERP and MES

In the promotion of specific projects, enterprises often have the problem of overlapping business functions of ERP and MES. In fact, there are obvious differences in the service object, function and scope of the two in the flow of data information. ERP provides the overall operation goal for MES, and MES optimizes the plan to feedback the results, and the two are effectively integrated. In the production plan: ERP is mainly the plan sent to the production workshop on the basis of batches, and the execution precision is the batch; the production scheduling of MES usually gives the schedule of one week or the schedule of each process every day, the production sequence of each process is given, the production order is adjusted according to the on-site conditions, and the execution precision is specific parts.

In the quality management: ERP carries on the quality management for the business in the quality standard, mainly stores the quality standard for the existing product, and provides the quality basis for the production, the execution precision is to carry on the quality inspection to the key point of the production site. MES carries on the quality management for the abnormal situation in the production process, provides the quality analysis and tracking to each process, and connects the quality inspection equipment and personnel to manage, and the execution precision can reach the work site. In the tracking implementation: ERP tracks WIP, determines the completion of batches, the input and output of production orders, and the inventory of raw and auxiliary materials and finished goods according to the production batches and batch progress; MES tracking WIP is carried out for workshop scheduling, mainly for all relevant workstations and warehouse areas on the production site.

In line with the overall promotion of enterprise informatization, the effectiveness of ERP has been accepted by most enterprises. At present, MES is still in the initial promotion stage. Although MES has the function of connecting upstream and downstream business links, in the process of realizing the specific business requirements of enterprises, it is often found that the module functions of ERP and MES seem to overlap and overlap, so there is a focus problem-- we need to deeply understand and analyze the differences between their application functions. Effectively defining and planning the functions of ERP and MES system has also become a key step for the steady and successful implementation of informatization in manufacturing enterprises.

The above is the editor for you to share how to analyze the differences between enterprises using ERP and MES integrated applications, if you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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