OPC-UA connection between LabView (Server) and Siemens S7-1500 Client (not working)

[mw42]

Hello community,

can someone tell me if a Siemens S7-1500 is able to connect to a LabView OPC-UA server (a small self-written program, created with OPC-UA Toolkit 2020)?

Currently, the S7-1500 cannot connect to the LabView server part ("Certificate doesn't meet minimum key length required").

Any ideas how to solve this (or if it is possible at all) ?

Thank you

Martin

[N.H.]

Hi,

I did some research about your issue, and it seems to be an encryption/decryption issue between the device and the server, hence the "key length" not being compatible.
It has to do with the security policy you've set when creating the server. Try to set the security check to none and see if it works. It could be that the server's security policy isn't supported by the hardware you're using. 

I found you a link that shows how to do that:

Part 1: Creating an OPC UA Server (OPC UA Toolkit) - LabVIEW 2018 OPC UA Toolkit Help - National Ins...

Hope this helps.

Cheers