Schedule Operation Block

Explanation

Use this activity to schedule shop order operations connected to an operation block.

To perform this activity from:

Operation Block and Operation Blocks pages, click Schedule Operation Block.
Shop Order Operations, Shop Order/Operations and Shop Floor Workbench pages, select an operation connected to the block, click Operation Block and then click Schedule.
Machine Load, Labor Load, Machine Operations Scheduling and Labor Operations Scheduling charts, select the segment representing an operation connected to the block, click Schedule Operation Block.
Connect Operation(s) to Operation Block assistant, enable Schedule and click Next.

Operations can be either:

Scheduled in Parallel. Operations are scheduled with the same start or finish date/time (depending on scheduling direction).
Scheduled in Sequence. Operations are scheduled to start after another from a given start or date/time (depending on scheduling direction).

Scheduling direction can be either:

Forward Scheduling. Operations are scheduled from a given start date/time.
Backwards Scheduling. Operations are scheduled from a given finish date/time.

More options in the dialog:

Preceding Block / Succeeding Block fields can optionally be used to automatically set the Start Date or Finish Date equal as the preceding block's finish or start date. The Preferred Resource will be set the same as the preferred resource of the selected preceding/succeeding block.
Enter the date/time on which you want the operations in the operation block to start or finish in the Start Date or Finish Date field depending on the scheduling direction. Note that the new start/finish date for the operations will be based on the infinite scheduling logic and may differ from the field value. For instance, if the provided new start date is on a non working date, the operations will receive a new start date corresponding to the first available work date/time from the field value.
Select the resource on which you want the operations to be scheduled in the Preferred Resource field.
If you want to avoid slack between operations preceding the block operation on the same shop order when rescheduled to a later date/time, enable the Compress Operations option.

An operation block in status Planned, Released or Started with one or several connected operations must exist.
The site should not use constraint based scheduling server.
To schedule in parallel, the Concurrent Operations drop-down on the Work Center page must be set to allow concurrent operations.

Forward scheduling operations in parallel:

The Schedule Direction for the operations connected to the operation block will be set to Forward Scheduling and scheduled parallel to each others. The Start Date of the operations will be set according to the start date provided in the dialog.
Operations parallel to, and succeeding the rescheduled operations will also be set to Forward Scheduling and rescheduled.
If Compress Operations is enabled 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 operation new Start Date.

Backward scheduling in parallel:

The Schedule Direction for the operations connected to the operation block will be set to Backwards Scheduling and scheduled parallel to each others. The Finish Date of the operations will be set according to the finish date provided in the dialog box.
Operations parallel to, and preceding the rescheduled operations will also be set to Backwards Scheduling and rescheduled.
If Compress Operations is enabled and the new date/time for the rescheduled operation is earlier than the original date/time, operations on the same shop order succeeding the rescheduled operation will be set to Forward Scheduling and rescheduled with a Start Date adjacent to the rescheduled operation new Finish Date.

Forward scheduling in sequence:

The Schedule Direction for the operations connected to the operation block 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 within the block will be ordered following below priority:
- 1. Operation Priority.
- 2. Operation original Planned Start Date/Time.
Operations parallel to, and succeeding the rescheduled operations will also be set to Forward Scheduling and rescheduled.
If the Compress Operations option is enabled 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 Schedule with new Setup Time between Operations is enabled, all operations except the first one will be scheduled with a new setup time as defined in the Setup Time field. The Scheduled Setup Time field on the operation will be updated with the new setup time.

Backward scheduling in sequence:

The Schedule Direction for the operations connected to the operation block will be set to Backwards Scheduling and scheduled sequentially of each others with the last operation finishing on the finish date/time provided in the dialog box. Operations within the block will be sorted following below priority:
- Operation Priority.
- Operation original Planned Start Date/Time.
Operations parallel to, and preceding the rescheduled operations will also be set to Backwards Scheduling and rescheduled.
If Compress Operations is enabled and the new date/time for the rescheduled operation is earlier than the original date/time, operations on the same shop order succeeding the rescheduled operation will be set to Forward Scheduling and rescheduled with a Start Date adjacent to the rescheduled operations new Finish Date.
If Schedule with new Setup Time between Operations is enabled, all operations except the operation scheduled to start first will be scheduled with a new setup time as defined in the Setup Time field. The Scheduled Setup Time field on the operation will be updated with the new setup time.