Group Begin and Group End

Description

The Group Begin () and Group End () tasks are used together to:

•	Group a number of tasks within a subprocess.

•	Constrain the grouped tasks to run in the specified sequence.

•	Prevent downstream tasks from starting until the grouped tasks are finished.

Note: If the tasks are not grouped, the software will determine the fastest task sequence based on available resources.

During the protocol run, the software will make sure the labware needed by the grouped tasks are on the device locations before running the first task in the group. In addition, while the grouped tasks are running, only the microplates required by the grouped tasks will be allowed to be moved onto, off of, or within the device.

Use the Group Begin and Group End tasks if you want to control the sequence of liquid-handling tasks to make sure each microplate is handled the same way in the same sequence.

Note: To further control the tasks, especially those with time limits, you can specify time constraints between dependent tasks. See Specifying time constraints between dependent tasks.

 

Task is available for...	Task is available in...
Bravo Platform	Main Protocol, Bravo Subprocess
Vertical Pipetting Station	Main Protocol, Vertical Pipetting Station Subprocess

Requirements

You cannot add a Change Instance task within the grouped tasks.

Task parameters

The Group Begin and Group End tasks do not have task parameters.

Example: Group liquid-handling tasks

Goal

Make sure all liquid-handling tasks are finished before incubation begins.

Implementation

Add the Group Begin and Group End tasks around the liquid-handling tasks. Notice that the Change Instance task is not within the group.

I

Related information

 

For information about...	See...
Adding tasks in a protocol	Adding and deleting tasks
Microplate-handling tasks	Setting parameters for scheduling tasks
Microplate-storage tasks	Setting parameters for scheduling tasks
Liquid-handling tasks	Setting parameters for liquid-handling tasks
Scheduling tasks	Setting parameters for scheduling tasks
I/O-handling tasks	Setting parameters for I/O-handling tasks