Hello everyone, 

My project was perfectly working until today. When I start my HMI I got this error :

[Variable] : the value could not be written in the automaton. 

I deleted and made new HMI connections, but I still have the problem. 

Thank you in advance.

Regards,

Nathan

check you pg/pc settings in windows control panel

here for s7online the correct networkadapter must be configured

ChristophD

check you pg/pc settings in windows control panel

here for s7online the correct networkadapter must be configured

 Dear ChristophD, 

Thank you so much, it works !

But do you know why the interface changed ? 

Regards,

Nathan

ChristophD

not sure why, maybe it was never configured?

 I did it 3 months ago and it was working perfectly. 

But at least, if it happens again, I'll remember to check the PG/PC interface.

Again thank you ChristophD !