How do i take back up from siemens op77b

Hi guys,
i am able to take back up from op7 dp and op77a but i am failure to take back up from op77b.i am using usb/ppi multimaster cable.
1p 6es7 901-3db30-oxa0 to get communication.
I am trying but still i am not able to get communication between pg and op77b.
Kindly support and help me. Your support and help would be highly appreciated.
Kind regards.
Jamal.

You can only do a Prosave backup from these models, and this backup is only able to restore to a same model of OP. The OP7 requires a 9/15 pin RS-232 cable (described in link below).

Backup of OP7:
https://support.industry.siemens.co...a-text-or-graphic-based-panel-?dti=0&lc=en-WW

Backup of OP77:
https://support.industry.siemens.co...re-with-a-windows-based-panel-?dti=0&lc=en-WW

Hi Sigmadelta,
Pr
Thanks for your support and information. Your information help me a lot.
I used pro save software and cable used RS232 Zero modem cable for OP77B.
Cable selection was wrong before . Now no problem. I can upload and download without any
Problem.
Thanks and regards.
Jamal.

I have OP77B Touch panel. I doesnot have the Backup. I have tried take the backup with Wincc Felxible 2005 sp1 software.
but I am unable get the bank transfer. please tell the what is the procedure to upload the program from the OP77B Touch panel.
what can I do?

If your OP77B does not have a memory card installed with the project stored on it, you cannot upload the project with WinCC flexible. In this case, you can only backup using Prosave using the instructions on the link below:

https://support.industry.siemens.com/cs/document/28928853/how-do-you-backup-restore-with-a-windows-based-panel-?dti=0&lc=en-WW

you can see this video ... it's very easy indeed
https://www.youtube.com/watch?v=Dqe5cyrX1Xk&ab_channel=Let'sLearnWithAvishekChakraborty