Hi all,

I need some clarification on the HMI accessing the text files. I've spent many days reading all topics and posts about it and I'm not quite sure if I can achieve what I need.

So I need to program the system tha includes the following:

- PLC 1511T-1 PN
- HMI Comfort TP700
- PC with Windows 10
- TIA Portal V16, WinCC V16
- PLC, HMI and PC are on the same local network and subnet, connected via Ethernet switch

The goal is to access the text files, which are stored on the PC hard drive. They contain process parameters (recipes) which have to be sent to PLC and used in the program.

I've worked a lot in a TIA Portal simulation mode, wrote the VBScript that opens the file from the PC hard drive directory, gets the parameters out and sends to the PLC using HMI tags. All works well, I can open any file from either PC or server location.

Now I got the real panel in, connected to the PC, and things don't really work the same way - I know the VB Script has to be different when testing the program in simulation and in the panel (Win10 vs Win CE) so I modified the script using WIN CE syntax. 
The problem is, I cannot access the files anymore (I get the error: The system cannot find the path specified.) which makes me thinking whether it is possible or I just spend weeks working on something that will not work in a real system.

So, my question is, is it possible to use the physical HMI panel to access the files that are stored on the PC? Or it work only when the files are stored locally on the panel/USB? Are there any better ways of doing what I need to achieve?

Sorry if that was answered already, I really couldn't find any clarification on that...

I will be grateful if you can help me.

Regards

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Split from Read content of .txt file with VBS Comfort Panel.

Murof

Hello deborzanka

In case of a Comfort Panel you have to look at this FAQ:

https://support.industry.siemens.com/cs/ww/en/view/92346478

Bye Murof

 Hi Murof,

Thank you for the link - I followed the document (Data Storage on Windows Server or NAS Hard Disk) and my setup worked.

Previously I tried this FAQ: LINK

It is similar but didn't work on my application - I think the key was to create a new user and also changing folder permission options, not only sharing.

Thanks again!

Regards