Hi Tomas.
Yes, after reinstalling OS on industrial SD card everything its ok.
I think the problems became becouse of the wrong settings in Mervis DB and Proxy, also probobly i was saving the project in proxy profile, im not sure.
After reinstalling OS i didnt use Proxy or DB and it was ok, few days before i try to connect the controller to db and proxy and problem apear again, lucky i was able to disable them and after cold reboot everything its working fine. I think my settings its wrong, what its correct URL for DB and Proxy server, on Mervis KB site they are the same for diffrent version of Mervis. I got mervis 2.3.0 installed.
Also i have some questions:
How to in HMI editor create momentary pushbutton?
Can i set the delay timer time from HMI and how, i try various options but didnt work.
How to create and use fupla blocks, i manage to create one (i think) , it is in solution properties but cant use it, i try to drag and drop but not working. How to do this?
Can modbus client and modbus server can be use at the same time?
Also i have finger print sensor
https://www.ebay.co.uk/itm/USB-Fingerprint-Reader-Scanner-Biometric-Door-Access-Control-Attendance-System/283645765047?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
Any chance to connect it to the controller using UART or USB?
Regards.