According to the invention a method for automatic configuration of a process control system is provided, comprising a master and at least one slave, wherein the master controls the at least one slave, which is connected to and communicates with the master via a bus system, and processes data received from the at least one slave, whereby the master automatically identifies the at least one slave via the bus system, and subsequently automatically generates an apparatus configuration for setting up the slave according to its identification such that the slave is ready to be operated in the process control system. Moreover, the invention relates to a process control system adapted to carry out the method.