Sequence Shop Order Operations

Explanation

This activity is used to schedule shop order operations in sequence after each others from a given start date/time.

Prerequisites

• Shop order operations must belong to the same work center.
• The status of the shop order operations cannot be Cancelled or Closed.
• The Schedule Direction of the shop order operations cannot be Manual Scheduling.
• The site should not use constraint based scheduling server.
• To create operation blocks, two or more of the operations cannot belong to the same shop order.
• To base the sequencing order on characteristic code(s), they must have been entered in Work Center/Characteristics tab.
• To automatically default the characteristic code(s) to use for sequencing, the Sequencing Priority field should have a value for the characteristic code(s) in Work Center/Characteristics tab.
• To use the setup matrix, the Enable Setup Matrix must be On in Work Center/Characteristics tab for at least one of the characteristic codes entered in Characteristics for Sequence Order list.
• An operation cannot have a lower operation priority value relative another included operation from the same order with lower operation sequence number. I.e., operation priority cannot be used to change the order of the operations within an order.

System Effects

• The Schedule Direction for the included operations will be set to Forward Scheduling and scheduled sequentially of each others with the first operation starting on the start date/time provided in the dialog box. Operations will be ordered following below priority:

1.  Priority and Sort Order defined in the Characteristics for Sequence Order list.
2.  Operation Priority defined in Operations to Sequence list. Operations with a lower value are scheduled before operations with a higher value.
3.  Operation original Planned Start Date/Time. Operations with an earlier original planned start date/time are scheduled before operations with a later start date/time.

• The preferred resource selected in the assistant will be set as the preferred resource for the operations. If this work center resource is available, operations will be scheduled on it.
• Operations parallel to, and succeeding the rescheduled operations will also be set to Forward Scheduling and rescheduled.
• If Compress Operations is On, and the new date/time for the rescheduled operation is later than the original date/time, operations on the same shop order preceding the rescheduled operation will be set to Backwards Scheduling and rescheduled with a Finish Date adjacent to the rescheduled operations new Start Date.
• If Setup Matrix is On, all except the first operation will be scheduled with a setup time fetched from the Work Center/Characteristics tab considering the combinations for the characteristic codes entered in the Characteristics for Sequence Order list. If several characteristic codes have a setup matrix defined, the longest setup time will be used.
• If Create Operation Blocks is On, an operation block will be created and connected to all operations sharing the same characteristic values for the characteristic codes entered in the Characteristics for Sequence Order list. If no characteristic codes have been entered, or the operations does not have any value for them, an operation block will be created and connected to all those operations.
• If any of the operations are already connected to an operation block, they will be disconnected from it. If this leaves the block with no operations connected to it, the block will be deleted.

Pages

Visual Shop Order Operations Planning
Shop Order Operations
Shop Floor Workbench

Procedure

This activity can be performed from the IFS Aurena client only.

From Visual Shop Order Operations Planning page:

1. In the Machine Operations Scheduling chart, click the resource card and then click Sequence. The Sequence Shop Order Operations assistant appears.
2. For operations you want to sequence, set Include to On and click Next.
3. In the Characteristics for Sequencing Order list, enter the characteristic codes you want to base the sequencing order on.
   If a Sequencing Priority has been set for any characteristic codes in the Work Center/Characteristics tab, those will be appear automatically.
4. In the Preferred Resource field, select the resource on which you want the operations to be scheduled. Use the List of Values to select from available work center resources.
5. In the Start Date/Time field, enter the date and time on which you want the first operation to be scheduled to start.
6. If you want to avoid slack between operations preceding the sequenced operation on the same shop order when rescheduled to a later date/time, set Compress Operations to On.
7. If you want to schedule setup according to the characteristic value combinations, set Use Setup Matrix to On.
8. If you want operation blocks to be created and connected to operations sharing the same characteristic value, set Create Operation Blocks to On.

From Shop Floor Workbench and Shop Order Operations pages:

1. Search and select the operations you want to sequence.
2. Click Scheduling, then click Sequence. The Sequence Shop Order Operations assistant appears.
3. Follow above procedure from step 2.