System for detecting the load of a suspended mass on a hoisting cable of a crane load

The present invention relates to a system for detecting the load mass of a suspended on a hoisting cable of a crane load, which comprises a measuring arrangement for measurement of the rope force in the lifting cable, and a calculation unit for determining the load mass on the basis of the rope force, wherein the calculation unit comprises a compensation unit which describes the influence of the indirect determination of the load mass on the rope force in a model and at least partially compensated.