Restoring the configuration of a device (S7-1200, S7-1500) - STEP 7

Creating a backup of an S7 CPU
ft:publication_title
Creating a backup of an S7 CPU
Product
STEP 7
Version
V20
Publication date
11/2024
Language
en-US
Restoring the configuration of a device

If you have backed up the configuration of a device at an earlier point in time, you can transfer the backup back to the device. The saved configuration is then restored on the device.

The CPU goes to STOP while a backup is being loaded to the CPU. If an access level is configured for the CPU, you need the password for write access to the CPU.

Warning

Download backups with unknown content

If you activate the recommended actions during download during plant operation, you can cause serious damages or injuries in case of malfunctions or program errors.

Make sure that the backup contents do not include a configuration which results in unexpected plant behavior.

Requirement

  • The device is configured and a backup of the device is stored in the project.

  • The device is connected to the programming device/PC directly via the PROFINET interface of the CPU.

  • The CPU is in "STOP" mode.

  • You have the password for read access to the CPU, if an access level was configured.

Procedure

To restore older software and hardware state on a device, follow these steps:

  1. Open up the folder of the device in the project tree to display the lower-level objects.

  2. Open the "Online backups" folder.

  3. Select the backup you want to restore.

  4. In the "Online" menu, select the "Download to device" command.

    • If you had previously established an online connection, the "Load preview" dialog opens. This dialog displays alarms and recommends actions needed for the loading operation.

    • If you had not previously established an online connection, the "Extended download to device" dialog opens, and you must first select the interfaces via which you want to establish the online connection to the device.

      See also: Establishing or changing an online connection

  5. Check the alarms in the "Load preview" dialog, and select the actions in the "Action" column, if necessary.

  6. As soon as downloading becomes possible, the "Load" button is enabled.

  7. Click the "Load" button.

    The backup is transferred to the device and device is restored. The "Load results" dialog then opens. In this dialog, you can check whether or not the loading operation was successful and take any further action that may be necessary.

  8. Click the "Finish" button.

    If necessary, you must enter the password for read access to the CPU and confirm that the CPU should enter "STOP" mode.

    The contents of the backup are restored on the CPU. The CPU is then restarted.