RMODEL_CONTROL is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Model Calculation: Transfer Structure for Iteration Control" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_RMODEL_CONTROL TYPE RMODEL_CONTROL.
The RMODEL_CONTROL table consists of various fields, each holding specific information or linking keys about Model Calculation: Transfer Structure for Iteration Control data available in SAP. These include S_CURRENCY_REQU (Currency Key), S_RATE_OR_TERM (Calculate Installment Amount or Number of Installments?), B_RATE_AMOUNT (Nominal amount), A_RATE_COUNT (Number of Payment Installments Requested by Loans Partner)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .