Reza Hasanzadeh - Khorasan Regional Electric Company (KREC), Mashhad

In the application of any technology, there are naturally a series of technical,operational and economic problems. In this article, PLC technology and its historyare reviewed first, and then the issues and problems facing this technology areexplained in detail. Issues such as political and economic stability of the country,technology development program, research and development centers, groups andteams of consulting engineers, phenomena such as noise, interference, lack ofcapital, the existing laws of countries, the performance of contracting companies(for example, distribution companies and private intermediary companies) areanalyzed below .

PLC technology, capacity, interference, noise, network structure