Method for operating a filling system and filling system

A method for operating a filling system, wherein the filling system has at least one first filling point, at least one second filling point and at least one control and evaluation unit for controlling and monitoring the filling processes, wherein the first filling point has at least one first filling valve and at least one first flow or fill level sensor and wherein the second filling point has at least one second filling valve and at least one second flow or fill level sensor, and wherein a reference valve curve of the first filling valve and a reference valve curve of the second filling valve are stored in the control and evaluation unit, the method comprising:

• a determination step, in which the control and evaluation unit determines a current valve curve of the first filling valve and a current valve curve of the second filling valve in an operating state of the filling system;
• a comparison step, in which the control and evaluation unit compares the current valve curve of the first filling valve with the reference valve curve of the first filling valve and compares the current valve curve of the second filling valve with the reference valve curve of the second filling valve;
• an adjustment step, in which the control and evaluation unit adjusts the number of filling points at which the current valve curve differs from the associated reference valve curve;
• and
• a signaling step, in which the control and evaluation unit detects and signals a filling point error at the corresponding filling point in the event of a deviation of the valve curve from the reference valve curve at one filling point, and detects and signals a process error in the case of deviation of the valve curve from the reference valve curve at both filling points.