In a method for stabilizing the power supply of a plurality of field devices S1, S2, S3, A1, A2, the current demand of the individual field devices S1, S2, S3, A1, A2 is determined and the field Current consumption of the devices S1 , S2 , S3 , A1 , A2 , wherein a plurality of field devices S1 , S2 , S3 , A1 , A2 are connected to the data bus DBL and supplied with current via the data bus DBL. In this way, the current consumption of the individual field devices S1 , S2 , S3 , A1 , A2 can be regulated centrally and thus adapted to the process conditions.