Is there a security feature on the PLC next controller that would prevent a single board computer such as a Raspberry Pie from displaying the E-HMI on a touch screen?
I can reach the controller on my Linux PC and Windows PC just fine. The Pie can ping the controller but it cannot display the E-HMI.
Connection:
Direct to the PLC 2152 controller no network switch, or router.
No, there’s nothing that would prevent this.
What browser are you using on the Pi ?
I think some browsers don’t give you the chance to view an untrusted site - they just refuse to show it. Could that be the case here? If so, then it should be possible to add the http certificate from the PLCnext Control device to the Trust Store on the Pi.
I am using the chromium browser on the PI. I will need to do more digging probably when I am not at work I was excited to try this out and see what happened.
And now, the standard suggestion that everyone gets from IT support:
Have you tried clearing the cache?
I’m not familiar with Chromium - in Chrome you can trust a certificate using the little icon on the left of the address bar. I found this suggestion for adding a certificate to the Chromium trust store:
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In any case, there’s nothing in the PLCnext Control device that will stop this from working.