- Transaction Mode

The Transaction Mode is a property of the Desigo CC server. It sets how data is written to the project database. By default, the Automatic Switch of Transaction Mode property of the Desigo CC server is set to False which means that the user must set the Transaction Mode property manually as follows:

  1. In System Browser, select Management View.
  1. Select Project > Management System > Servers > Main Server.
  1. In the Extended Operation tab, do one of the following:
  • To increase system performance during bulk engineering activities, set Transaction Mode to Simple and then click Set.
  • When bulk engineering activities are completed, switch Transaction Mode back to Logging and then click Set.
NOTICE
Set the Transaction Mode to Simple to speed configuration tasks

Simple is the setting typical of bulk engineering activities, such as importing subsystem data. It allows configuration tasks to be completed faster. However, in the event of a system crash or hardware failure, any unsaved data might be lost and the stored data might be corrupted. To prevent data loss, the Desigo CC station generates an event when Transaction Mode is set to Simple to remind the users to switch Transaction Mode back to Logging.

 

NOTICE
Set the Transaction Mode to Logging when configuration is complete

Logging is setting is typical of normal operation. Internal transactions are completed only after all the internal data is written to disk. This guarantees the database integrity and prevents data loss or database corruption over crashes or hardware failures.

Automatic Switch of Transaction Mode

To switch the Transaction Mode property automatically when importing subsystem data, in the Extended Operation tab do the following:

  1. Set Automatic Switch of Transaction Mode property to True.
  1. Click Apply.
  • When the import operation starts, Transaction Mode is set to Simple automatically. When the import operation is completed, Transaction Mode is set to Logging automatically.