Due to the working characteristics within livestock breeding, particularly on pig farms, we find multiple collections of control equipment. To improve the direct control and monitoring of these farms, EXAFAN has created software to control all this equipment from a central PC. It is necessary to use a terminal called ASEM as an interface between the central PC and the loop communication equipment which, apart from performing the function already mentioned, allows us to provide additional information to the system using an external temperature sensor, an external relative humidity sensor and a weather station.