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The hmis should have different ip adresses and device names. And they also should have differently named connections to the plc.

https://drive.google.com/file/d/1ZPJxAY8MLjKcywF6U6KeLqxMQ3S6_MkY/view?usp=sharing   Manual for converting to pl7

I dont know intouch but they should either have a driver for codesys, or of they dont check if your controller and intouch has an OPC UA option

On a Schneider FAQ there is a similiar error mentioned. They also mention to repair installation but before this try running the application as administrator first.   https://www.se.com/ca/en/faqs/FAQ000134528/

If you right click on the cpu in the project tree then select assignment list. A new window will open which on the top right has a few tabs. Most info can be found under those tabs

From what I understand there is no way of doing this. Definitely cannot open the backup in TIA portal

Not getting great info on the web for this. But in theory you should be able to Create an OPC UA server in the tm241 and communicate that way with the comfort panel

Just one question. You mention Using terminal expert but this is software for the schneider hmi

263 is 26.3 degrees You can copy the %mw1 into another register with a operate block and divide the new register by 10 

I havent seen this myself but from what I found on the internet it looks like you are running Unity Pro without administrative priviledges. https://www.se.com/ng/en/faqs/FA348329/

Since you are in Denmark I would use a Secomea Sitemanager for the link and a Siemens Logo. The new logos have a webserver where you can graphically create custome webpages. Then the secomea will give secure acces via simcard to the logo which you can view with any device that can go onto the web

Hi I have to agree with IO_RACK here. If you are on a vpn to the network then nothing is needed on the hmi side. You should be able to ping the hmi regardless of NAT settings. I have a lot of schneider hmis that i connect to remotely (via secomea sitemanagers) and the only issue sometimes when downloading is  if the internet is a bit slow or the file is very big then it may take 2 or 3 tries to get it to download. The secomea system is almost like a vpn. Did you enter a gateway address in the hmi?

In your 1st photo the run led is on, in the second it is off. So I presume the Run led is flashing. This means there is no program loaded in the plc, or it could just be in standby mode. Have a look what the diagnostic leds will show when a cpu is in standby mode

https://www.se.com/in/en/faqs/FA12064/   Hope this helps

Generally you will need to use timers as not to create multiple reads and writes at the same times. Normally a quick timer will trigger a read to a device...once the done is received it will trigger another and so on.