Planning in production systems MES systems Slovak University of Technology Faculty of Material Science and Technology in Trnava

MES Manufacturing Execution System (MES) is described as a collection of software functions which are distinct from those included in ERP, CAD/CAM and Industrial Controls. The uniqueness of functionality is an added benefit because it complements the functionalities that exist in the other systems.

MES The focus of MES is operations, specially production operations. MES coordinates all manufacturing data related to operations at a plant wide level. MES is an online integrated computerized system that is the accumulation of the methods and tools used to accomplish production. MES was first used in 1990.

Primary functions of MES Collects data (e.g. bar-code scanning) in real time. Organizes and stores data in a centralized database. Makes data accessible throughout the network, and integrates critical data from other information systems such as planning and accounting. Delivers and manages orders from ERP to production, with detailed scheduling reacting to real-time events, increasing productivity and quality

Benefits of using MES Reduces manufacturing cycle time Reduces or eliminates data entry time Reduces work-in-process Reduces or eliminates paperwork between shifts Reduces lead times Improves product quality Eliminates lost paperwork Empowers plant operations people Improves the planning process Improves customer service

Full Functions of MES – by MESA Resource Allocation and Status Operation/Detail Scheduling Dispatching production Unit Document control Data Collection Labour Management Quality Management Process Management Maintenance Management Product Tracking and Genealogy Performance Analysis

Core Functions of MES Planning System Interface Work Order Management Workstation Management Inventory Tracking and Management Material Movement Management Data Collection Exception Management Manufacturing Intelligence

Support Functions of MES Maintenance Management Time and Attendance Statistical Process Control Quality Assurance Process Data / Performance Analysis Document / Product Data Management Genealogy / Product Traceability Supplier Management

The position of MES systems

Solution possibility of data flows between MES and procedural control

Solution Possibility of data flows between ERP systems and MES.

MES Context Model the relation between MES and other enterprise activities SSM – Sales & Service Management SCM – Supply Chain Management ERP – Enterprise Resources Planning P/PE – Product and Process Engineering Controls – PLC, DCS, line and machine control

MES Functional Model

The model shows the eleven functions of MES and links to other systems. Functions may link in multiple different ways by product and need The core subsystems of MES are: 1. Resource Allocation and Tracking7. Quality Management 2. Operations/Detail Scheduling8. Maintenance Management 3. Dispatching Production Units9. Product Tracking and Genealogy 4. Specification Management10. Performance Analysis 5. Data Collection/Acquisition11. Material (Movement) Management 6. Labor Management

Flow of information between MES and other software tools