TP 177A migration

Dear All,

I need help I need to replace my TP 177A (6AV6642-0AA11-0AX0) but it is already obsolete. My supplier is recommending 6AV6642-0AA11-0AX1. My question is can I upload the program from the old one and just download to the new model. I will use Prosave Version 15.

It looks like the newer part number is just an approval mark change:

https://support.industry.siemens.co...ls-revoked-as-per-june-01-2008?dti=0&lc=en-WW

Apparently, a couple were successful:

https://support.industry.siemens.com/tf/ww/en/posts/tp-177a-6-replacement/60845?page=0&pageSize=10

https://support.industry.siemens.co...77a-hmi-replacement/167520?page=0&pageSize=10