7. Conclusion

The arrival of digital microelectronics at the end of the 1970s has penetrated all sectors, from the tertiary sector to industry and the general public, and the development of intelligent instrumentation has benefited greatly from this "wave".

Instrumentation and control system manufacturers have invested in this development and have a fairly broad technical offering, the key points of which are :

• improved measurement quality through early digitization and compensation of influence variables;

• remote instrumentation management ;

• predictive maintenance using diagnostic tools ;

• simple processing decentralization in instrumentation ;

• instrumentation networking (wired and wireless) ;...