# ROSCO input file for benchmarking

**URL:** <https://forums.nlr.gov/t/rosco-input-file-for-benchmarking/8273>\
**Category:** Controls\
**Created:** [February 14, 2025, 12:44pm UTC](https://forums.nlr.gov/t/rosco-input-file-for-benchmarking/8273 "2025-02-14T12:44:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Torben.Knudsen](https://avatars.discourse-cdn.com/v4/letter/t/e9a140/32.png) [@Torben.Knudsen](https://forums.nlr.gov/u/Torben.Knudsen)\
**Post date:** [February 14, 2025, 12:44pm UTC](https://forums.nlr.gov/t/rosco-input-file-for-benchmarking/8273/1 "2025-02-14T12:44:37Z")

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I like to use Openfast/ROSCO for comparing to another controller. I am running openfast from the shell. How do I get a “standard” ROSCO setup?  
For now I only have a “SERVODYN v1.05.\* INPUT FILE” but not a specific ROSCO setup file.  
I get these warnings suggesting I could have a setup file with ROSCO parameters?

## Running ROSCO-v2.9.0 A wind turbine controller framework for public use in the scientific field Developed in collaboration: National Renewable Energy Laboratory Delft University of Technology, The Netherlands

ROSCO Warning: Did not find correct size F\_NotchFreqs in input file. Using default value of [0.0000000000000000]  
ROSCO Warning: Did not find correct size F\_NotchBetaNum in input file. Using default value of [0.0000000000000000]  
ROSCO Warning: Did not find correct size F\_NotchBetaDen in input file. Using default value of [0.0000000000000000]  
Generator speed: 1173.7 RPM, Pitch angle: 0.0 deg, Power: 0.0 kW, Est. wind Speed: 19.7 m/s

FAST\_Solution:FAST\_AdvanceStates:SrvD\_UpdateStates:DLL\_controller\_call:BladedInterface option was  
designed for an explicit-loose coupling scheme. Using last calculated values from DLL on all  
subsequent calls until time is advanced. Warning will not be displayed again.

Generator speed: 1230.0 RPM, Pitch angle: 12.9 deg, Power: 5377.4 kW, Est. wind Speed: 17.2 m/s

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**Author:** ![Daniel.Zalkind](https://avatars.discourse-cdn.com/v4/letter/d/5daacb/32.png) [@Daniel.Zalkind](https://forums.nlr.gov/u/Daniel.Zalkind)\
**Post date:** [February 14, 2025, 3:55pm UTC](https://forums.nlr.gov/t/rosco-input-file-for-benchmarking/8273/2 "2025-02-14T15:55:43Z")

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Hi Torben,

Standard inputs can be found [here](https://github.com/NREL/ROSCO/blob/main/Examples/Test_Cases/NREL-5MW/DISCON.IN), for example.

If you have another turbine model, [this example will tune the controller](https://github.com/NREL/ROSCO/blob/main/Examples/03_tune_controller.py) and generate a DISCON for you.

Best, Dan