| # Function: Production scheduling The purpose of scheduling is to develop a plan, based on timely knowledge and data that will ensure all the production requirements are fulfilled. The scheduler develops a plan over a specified time period, based on the manufacturing data and the schedule guidelines from the goods-flow-control level. The scheduler accepts the requirements from a higher planning system and determines a precise plan in accordance with the various manufacturing facilities. In other words, that all operations, line mixes, work center bottlenecks, and so on, must be taken into account within a specified timeframe. The production orders will first be scheduled. This includes a check of the available capacity, work centers, and resources. You can change orders and operations in sequence and their material can be adapted to the new schedule. The required tools will be scheduled and the order documents will be printed. If the schedule can be committed, the production orders will be released. The following four main activities can be distinguished: Create and analyze schedule Use tools planning (optional) Print order documents Release orders For mixed model flow production environments, the Assembly Control module in LN Manufacturing is used to schedule orders on the assembly lines. Process: Production order scheduling (MRT) (code: MMN01b) Schedules are generated automatically in a repetitive environment. Therefore, items are defined as repetitive items, which are set up in engineering. Automatic orders/advices are generated and must be confirmed/transferred. Again, tools can be scheduled, documents can be printed, and orders can be released. Scheduling is initiated by production orders transferred from planning. The scheduler can change the order plan for various reasons such as the following: Insert rework orders if quality problems occur. Update orders because of changes that occurred after order transfer. Change the planning dates of orders because of capacity restrictions. Assumptions: Items are defined as repetitive items. IT support: LN Manufacturing Process: Job shop control (JSC) order scheduling (MJS, SCS Scheduler not in use) (code: MMN01e) Scheduling is initiated by production orders transferred from planning. The scheduler can change the order plan for various reasons such as the following: Insert rework orders if quality problems occur. Update orders because of changes that occurred after order transfer. Change the planning dates of orders because of capacity restrictions. Assumptions: The production environment is Job Shop. IT support: LN Manufacturing Process: Assembly Scheduling (code: MMN01f) Scheduling is initiated by assembly order generated. The assembly scheduling functionality consists of the following: Finite scheduling of assembly orders using priorities Manually rescheduling assembly orders Freezing of assembly orders Assumptions: The production environment is mixed model flow. IT support: LN Manufacturing: Assembly Control |