Abstract: An automation system is proposed, having a central control module and digital input modules and/or analogue input modules and/or digital output modules and/or analogue output modules and/or I/O modules, which modules are connected to one another via an internal bus system, and which are connected via lines to digital sensors and/or analogue sensors and/or digital actuators and/or analogue actuators. The automation system has at least one base station module which communicates by radio via at least one antenna with wire-free sensors and/or actuators and/or I/O appliances, which each have an antenna, of a machine or installation.