hello everyone!

my system consist of a simply supported beam with concentrated load F (pointed downward) at midspan. In addition, the system shall be loaded with concentrated load P (pointed upwards) . During analysis the value of the load P will be changed. For example, at step 1 P=100 kN, at step 2 P= 60 kN, and so on...

Which subroutine can be used for this purpose?

First of all, i thought about DLOAD, but it is used for the distributed load. I would like to work with concentrated load.
The reason why I want to use the subroutine is, that the model in Abaqus shall be connected with other software, which provides the value of the load P.

Many thanks in advance!