Siemens SIMATIC S7-1200 System Manual page 1036

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12.6 Standard Web pages

From the Backup PLC section of the page, click the "Create online backup" button to make a

backup of the project that is currently stored in the PLC. This function requires the "Backup

CPU" user privilege (Page 1005). If the CPU is in RUN mode and you have to change it to

STOP mode, you also need the "Change operating mode" privilege. The PC or device will

store the backup file at the default location for downloads. Depending on your browser and

device settings, you might be prompted about saving the file.

From the Restore PLC section of the page, enter the Web server user password and click

the "Browse" or "Choose File" button (depending on your browser) to select a previously-

saved backup file. Click the "Load online backup" button and confirm the prompt to load this

file in the connected PLC. This page requires the "Restore CPU" user privilege (Page 1005).

If the CPU is in RUN mode and you have to change it to STOP mode, you also need the

"Change operating mode" privilege.

As the restore operation proceeds, you see a series of progress messages and you must

reenter your user login and password. After each step of the process completes successfuly,

you see the following completion indicators and a link to reload the page:

Restoring backups with unknown content

If you restore a backup with unknown content, you can cause serious damage or injuries in

case of malfunctions or program errors.

In addition, if you restore a backup that does not have the Web server enabled in the

device configuration of the CPU, you will not be able to access the CPU from the Web

Make sure that the backup consists of a configuration with known content.

S7-1200 Programmable controller

System Manual, V4.2, 09/2016, A5E02486680-AK