| Operation (Step) - Process Variables (tirou1111m000) |  |
| Use this session to link one or more process variables directly to an operation, or to an operation step of a microrouting. Note You can define process variables in the Process Variables (tirou0105m000) session. To link process variables to an operation If you want to link process variables directly to operations for instruction purposes, you can select a record in the Routing Operations (tirou1102m000) session, and on the appropriate menu, click Process Variables. As a result, the Operation (Step) - Process Variables (tirou1111m000) session starts, in which you can link one or more process variables to an operation. These process variables are presented together with the relevant operation on production order documents. To link process variables to an operation step If you want the shop floor operators to check process variables in a specified order for a specific operation, you must link each process variable to a separate operation step for the relevant operation. After you have defined operation steps for the operations in the Operation Steps (tirou1105m000) session, you can link one or more process variables to each operation step. Select an operation step in the Operation Steps (tirou1105m000) session for the correct item/routing/operation combination, and on the appropriate menu, click Process Variables to start the Operation (Step) - Process Variables (tirou1111m000) session, in which you can link one or more process variables to an operation step. Example If a specific operation requires some elements to be glued to another element, each at a specific temperature, the most efficient order for glueing can be set up by linking each process variable (in this case, the different temperatures) to a separate operation step. Default value If the current session is started for an operation that makes use of a task relationship to which process variables are linked in the Task Relationship - Process Variables (tirou0116m000) session, the process variables from the Task Relationship - Process Variables (tirou0116m000) session are defaulted to the current session. Even if process variables are linked by default to an operation in this session, you can still link process variables manually to an operation step in this session. As a result, you can link process variables to both an operation and to operation steps at the same time. Related topics Microrouting
Fields | Description
Item | An item that occurs in any module of Manufacturing. It is a purchased, manufactured, or generic item that is used in a generic/production bill of material or in a generic/production routing.
Routing | The sequence of operations required to manufacture an item. For each operation, the task, machine, and work center are specified, as well as information about setup time and cycle time.
Operation | One of a series of steps in a routing that are carried out successively to produce an item. The following data is collected during a routing operation: The task. For example, sawing. The machine used to carry out the task (optional). For example, sawing machine. The place where the task is carried out (work center). For example, woodwork. The number of employees required to carry out the task. This data is used to compute order lead times, to plan production orders and to calculate cost prices.
/ | The sequence number of the operation. This number is based on the effective/expiry dates, and is used to distinguish between operations. The effectivity and expiry date for operations are used in: Enterprise Planning. Cost Price Calculation. Shop Floor Control.
Operation Step | A suboperation connected to a routing operation. An operation step can contain information such as, instructions, process information, and tools information.
Process Variable | A setting or an input value related to a machine, a tool, or to process quality that is relevant to carry out an operation or an operation step. For example, cutting depth, cutting speed, and temperature.
Upper Control Limit | The process variable's upper control limit that is expressed as an absolute value or as a percentage. Absolute If the upper control limit is expressed as an absolute value, define the maximum target value of the process variable. Example If the target value is 30 and you do not want the upper control limit to exceed 33, enter 33 in this field. Percentage If the upper control limit is expressed as a percentage, define the percentage with which the process variable's target value can be exceeded. Example If the target value is 30 and you do not want the upper control limit to exceed 33, enter 10% in this field.
Lower Control Limit | The process variable's lower control limit, which is expressed as an absolute value or as a percentage. Absolute If the lower control limit is expressed as an absolute value, you must define the minimum value that the process variable's input value can be lower than the target value. Example If the target value is 30 and you do not want the lower control limit to be lower than 27, enter 27 in this field. Percentage If the lower control limit is expressed as a percentage, define the percentage that the process variable's input value can be lower than the target value. Example If the target value is 30 and you do not want the lower control limit to be lower than 27, enter 10% in this field.
Target Value | The process variable's target value.
Deviation Expressed In | The expression of the measurement deviation. Default value This field is defaulted from the Deviation Expressed In field in the Process Variables (tirou0105m000) session.
Upper Control Limit | The unit in which the deviation is expressed.
Task | An activity to manufacture or repair an item. For example, sawing, drilling, or painting. A task is carried out on a work center, and can be related to a machine.
Work Center | The default work center where the task is carried out.
Machine | The machine on which the operation is performed.