Group Begin and Group End
Description
The Group Begin (
) and Group End (
) tasks are used together to:
) 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 |
Requirements
You cannot add a Change Instance task within the grouped tasks.
Task parameters
After adding the Group Begin and Group End tasks at the desired point in the protocol, the following Task Parameters are set by default. You can edit the Task description as desired.
 |
Parameter | Description |
|---|---|
Task number | The number that indicates the position of the task in the protocol. |
Task description | The description of the task. |
Use default task description | The option to use the default task description or provide your own description for the task. Select the check box to use the default description. Clear the check box to provide your own description. |
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.
 |
Related information
For information about... | See... |
|---|---|
Adding tasks in a protocol | |
Microplate-handling tasks | |
Microplate-storage tasks | |
Liquid-handling tasks |