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Norbert Kytka, Headquarters PlattlingContact
What would production look like without an MES (Manufacturing Execution System)? For starters, the shift manager would have to do a lot of footwork each day. As the interface and interpreter between administrative and operative levels, lots of paperwork would be involved. Once you have experienced the advantages an MES brings, you don’t want to go back.
Enterprises may have isolated stand-alone solutions in use, but nowadays these are generally IT-supported, if not always integrated. The result is a system landscape with heterogeneous data, where employees enter duplicate data into several different systems. The consequence: frequent errors and loss of transparency.
An MES creates a digital link between the ERP system and the planning and production levels. It plans, manages and monitors production in real time, while continuously collecting information, ideally from all points in production. An MES is an essential component of the digital transformation. The type of factory that used to exist twenty years ago is obsolete nowadays. Today’s manufacturing firms are high tech enterprises; they have to work economically and efficiently.
Embracing the digital revolution is not a choice; it’s essential. Automated processes ensure efficient use of resources, quality assurance and delivery reliability. With a comprehensive, IT-supported flow of information and data, your enterprise can reduce the time they need to react to unplanned events; it can introduce measures more quickly. You can recognize potential for optimization and transform the potential into reality without incurring significant costs. Manufacturers who can respond quickly to changes or new customer requirements gain strategic –and therefore also competitive – advantages.
The MES integrates past, present and future data. This means that up-to-date information is available at any time – and, using mobile devices, from anywhere. All users can quickly and easily get an overview of the current situation on the shop floor: the MES provides transparency.
Digitalizing production with a Manufacturing Execution System has lots of advantages for production managers: you improve transparency, reduce waste, improve reliability and reduce set-up and maintenance times. With an MES, data from production and production-related systems from manufacturing plants anywhere in the world can be seamlessly linked together in the information flow of the centralized SAP ERP system, in real time. Every production step is associated with a value creation step.
MES is your software for efficiently capturing machine and operating data. You can develop an effective, optimized schedule for production orders; fine-grained planning can be done manually or automatically. As the number of production orders and therefore the complexity increases, a control center assists with production material planning. The planning department has an overview of delivery dates and can optimize utilization of machine capacity. Quality assurance teams can record the necessary information in digital order documentation: the system is paperless and you no longer need to struggle with Excel or Word.
HR planning helps with shift scheduling, based on personnel requirements arising from the orders to be completed and work centers to be used. The MES’s core tasks also encompass real-time services such as energy management.
In sum: an MES is a production management system that uses the data from the ERP to manage, monitor and record the entire product cycle. Everything from material entry and machine utilization through to recording the quantity of items produced, the material used and the time taken.
The Association of German Engineers (Verein Deutscher Ingenieure – VDI) has specified in its Guideline 5600what an MES should include and what its key functions are.
VDI guidelines reflect the current state of the art. This standard serves as a support framework for companies who often face technical challenges in their daily work and need guidelines to help them navigate the jungle of requirements and quotes. A summary of where to find guidance can be found on the VDI’s home page.
An MES models your entire value chain in production – from raw materials to finished product.
The transparent overview of all production events and workflows, combined with the commercial dimension, is the foundation for continuous, targeted improvement of production processes. Manufacturers can call up a complete record of production components and manufacturing history at any time. You can view and evaluate key production figures at the press of a button – and that means that you can make decisions quickly based on solid data. At the same time, productivity increases, as machines, systems and personnel are put to optimal use and the availability of the production systems is increased since the MES applications are available offline to the ERP. Employees are supported in their work processes, for example with information about recipes or the correct packaging. This reduces errors in production.
Introducing an MES also brings with it ways to analyze and optimize existing processes. Obsolete procedures can easily be identified and systems extended with IT support.
An MES continuously collects information, ideally from all points in production. The interaction between the information hub and the data from other sources – logistics, quality, maintenance, etc. – form a basis for continuous data analyses. These reveal points in production where there is potential for creating added value.
By analyzing the data and events recorded by an MES, you obtain indicators of how production can be optimized. You can identify weaknesses such as lengthy set-up times, long maintenance downtimes and rework, and then – ideally – make adjustments to avoid them before they even happen.
Errors in planning often have knock-on effects for product quality, delivery times and your corporate image.
The VDI guideline (VDMA-Einheitsblatt 66412) defines standard key product indicators for production. These include OEE (Overall Equipment Effectiveness), scrap rate and set-up complexity. With an MES, you have the capacity to record the necessary data to determine all standard key product indicators; you can also use these as a basis to define and calculate your own custom metrics.
T.CON’s MES can be seamlessly integrated with an ERP system such as SAP ERP. A high degree of integration between the MES and the ERP system is essential for avoiding redundancy (e.g. duplicating master data). Isolated solutions result in media discontinuites, and most such solutions only partly solve a particular problem within the system landscape.
The ERP specifies the rules, while the MES is the executive power. The MES ensures that the rules set out by the ERP are followed in production. All production processes are organized using the MES to follow the schedule and ensure a continuous production flow during execution.
By collecting data with an MES, you can plan much more in detail. The MES gives you up-to-date values straight from production – for example, the actual machine output. The planner can generate realistic estimates regarding the performance that can be expected from the system. The next order will then be scheduled appropriately, the truck doesn’t have to wait on the loading ramp, and delivery is on time.
What do you want to achieve with your new MES installation? For most enterprises, objectives include increasing productivity and profitability, along with getting rid of isolated solutions. Many manufacturing enterprises understand the need for IT systems that can support production but feel uncertain about whether they have the capacity to manage an installation. After all, there are a lot of challenges involved in successfully carrying out an IT project in parallel with operative business:
How do you find the right provider and the right solution?
How much time will need to be invested? What other resources do you need? How long will it take for the new system to pay for itself?
Our 10 tips for an MES implementation will help you to keep the most important points in focus.