# Defining the decoder functionalities (P-STUP-00050)

P-STUP-00050 | Definition of decoder functions
Description | The parameter defines specific functionalities for decoding. This disables specific functions for testing or for performance reasons.
Parameter | configuration.channel[i].decoder.function
Data type | STRING
Data range | FCT_USE_CACHED_FILES: Enabling file caching FCT_VOL_COMP_COMPUTATION: Calculations for machine calibration -: No functionalities defined.
Dimension | ----
Default value | *
Remarks | Parameterisation example: Caching of maximal 4 files of maximum 4096 bytes each. configuration.channel[0].decoder.function FCT_USE_CACHED_FILES configuration.channel[0].decoder.max_cache_number 4 configuration.channel[0].decoder.max_cache_size 4096

* Note: The default value of variables is a blank string.