You can back up a functional configuration of a CPU in the TIA Portal and access it at a later time; this means you can then restore the backup. This allows you to load a modified configuration, for example, to test product enhancements, to change programs for troubleshooting in the system or you can replace components on a test basis. You can then restore the initial configuration of the CPU.
The CPU goes to STOP while a backup is being created. If an access level is configured for the CPU, you need the password for read access to the CPU.
Requirement
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The CPU has already been created in the project.
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The device is connected to the programming device/PC directly via the PROFINET interface of the CPU. PROFIBUS interfaces of the CPU and interfaces of CMs/CPs are not supported.
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The CPU is online. If there is no online connection yet, an online connection is established during the backup.
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The CPU is in "STOP" mode.
Procedure
To create a backup of the current configuration of a CPU, follow these steps:
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Select the CPU in the project tree.
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Select the "Backup from online device" command in the "Online" menu.
If necessary, you must enter the password for read access to the CPU and confirm that the CPU should enter "STOP" mode.
Result:
A backup of the entire hardware configuration and software is created. The backup is stored in the project tree in the "Name of the CPU > Online backups" folder. The backup is assigned the name of the CPU with the time and date of the backup. You can rename the backup, but you cannot make any changes to the contents of the backup.
An entry is created for each backup operation in the diagnostic buffer of the CPU.