Software implementation by PUK code. Adds to Exa net, Femto ECT net, Femto 25A D net, Yocto net D6, Libra net and Lyra net the possibility to send data via MQTT protocol. The messages sent to the MQTT broker are json coded and contain the measures and the identifiers that allows to trace the single instrument that measured them as well as the measured variable. The group of the sent measures is configurable. It is possible to use an encrypted connection (TLS).