Hello,
Sorry for the very late answer. We didn't get notification by E-mail about your request. Please use E-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра. next time for quick supporting.
Message "Can not connect to the server" means that our product doesn't "see" your PLC try to ping it from PC.
Best regards,
Ruslan