| # Creating Operations Start Manufacturing > > Assembly Planning > Engineering > Operations (tiapl1500m000). Use this session to define the operations that are used to assemble the item on the line. If the operations are not defined in ERP LN, but delivered by an external source, you cannot change the operations, but only display these operations. The session is enabled for data entry through the Operation Details (tiapl1100s000) session, if the following conditions apply: Your current company is defined as the master company in the Assembly Planning Parameters (tiapl0100s000) session. The External Assembly Parts and Operations check box is cleared, or the Test Mode check box is selected in the Assembly Planning Parameters (tiapl0100s000) session. Note A station of type Line Station which is linked to the assembly line requires at least one operation. A station of type Buffer cannot have operations. Linking operations to line stations Start Manufacturing > > Assembly Planning > Engineering > Operations (tiapl1500m000). Operations are one of a series of steps in a routing that are carried out successively to produce an item. Operations are assigned to line-stations. Use this session to specify the line stations where the operations are carried out, together with the effective date, location, and man occupation of the operations. To link operations to line stations, complete the following steps: Select the first operation that you have defined. Click Operation Assignments on the Specific menu. The Operation Assignments (tiapl1510m000) session starts. Link the operation to the line station. Set the effective date and the expiry date. Set the Execution Sequence, the Man Occupation, and the Machine Occupation which are used when the Transaction Processing parameter is Order Based when calculating man/machine hours during backflushing. Note If the assembly order operation assignments are changed, you must run the Refresh and Freeze Assembly Orders (tiapl3203m000) session to process the changes. The purpose of an assembly assignment is to balance the resources over the line stations in a manner that optimizes line performance. Assignments are used to define process characteristics such as cycle time, man occupation, and machine occupation. Several process characteristics can be defined by using assignments. Process characteristics that are applicable to the entire assembly line are defined on the line-level assignment. Process characteristics applied at the line-station level and are defined for other assignments, which are defined by line station and linked to the line-level assignments. When the line-level assignment is active, all line-station assignments that are linked to it are effective. |