Then you will have to call fb58 in ob35, assign an instance-db and put in the relevant parameters. Give the instance a symbilic name, f.ex. "CTRL1". If you copy the output to the input ( L "CTRL1".LMN / T "CTRL1".PV_IN ) and the parameters from the picture, you will have a test system that plays. Play with it and try to find out what happens when you alter the different parameters.