A computerized system for performing remote diagnostics and configuration operations of a field device with a control unit includes a first communications module suitable to automatically handle the remote exchange of data/information with a remote station through a first communications network; and a second communications module, linked to the first communications module and suitable to automatically handle the exchange of data/information with the control unit of the field device by virtue of a second communications network. A third communications module suitable to automatically handle the remote exchange of data/information with the first communications module is connected through the first communications network. A first diagnostics and configuration module is linked to the third communications module and is suitable to remotely and automatically handle diagnostic operations and/or configuration operations on the control into the field device.