I have come to a site where they was an existing Siemens TP177B touch panel which are now obsolete. The screen had failed and I was struggling to backup/restore the project. I have managed to find another Panel exactly the same and used the SD card to take backup/restore the project onto the new panel (TP177B). I have also downloaded prosave tool and see that if I had a working screen I could have used this method as well. I tried it and was able to connect via Ehternet but that doesnt allow me to edit/upgrade the project it will simply allow me to download this into another exact same panel.

I then downloaded and installed WinCC Flexible 2008 edition and the Transfer from button in the loader is present but it will not connect to the TP177B. I went into all the settings for transfer on the TP177B and they appear to be correct because I was able to transfer earlier using the ProSave tool. I removed the SD card read this with my PC and found the file which I then installed into the correct file path of my PC. I can now open the project using START from the loader n Wincc Flexible but cannot make any changes.

I want to be able to covert this project to the newer TP700 panel yet without knowing having the orginal project and tags I am finding it extremely difficult to do this. I found the migration procedure on your websites which lists all steps needed to Migrate from TP177b to TP700 but its only referencing screen size. I have also found another option in TIA portal whereby you should be able to use a virtual CPU to do this but my version is TIA portal V15.1 and it doesnt list the older HMI. I have even downloaded every single addon but this still doesnt show up older model HMI's.

Firstly any help would be greatly appreciated.

dchartier

Hello Raman S;

First have a look at the contents of this FAQ:

https://support.industry.siemens.com/cs/document/21907703/how-do-you-back-transfer-the-projects-of-an-operator-panel-and-what-should-you-watch-out-for-?dti=0&lc=en-FR

Based on the attachments on this link:

-to be able to modify the uploaded file with WinCC Flexible, you need to havesetup  a back-transfer file; a ProSave upload is only for transfer to another similar TP 177B, since the file is compiled and cannot be opened for modification..

-the TP 177B does support back-transfer.

-Back-transfer requires that the original programmer implement it when he downloads the program to the operator panel; if he has not done it, the back-transfer file is not loaded to the TP and you cannot retrieve it.

-there are conditions for back-transfer to work: available memory or a memory card, for example.

-the attachment below shows you how you can determine whether a back-transfer file exists on your operator panel.

Hope this helps,

Daniel Chartier

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