specification/options can be different but even with a list of options the model control or machine would not be known. the G/M codes that are used are exactly the same. For example G141 means right chuck work and that code is universal on all twin spindle Okumas like LT/Macturn/Multus etc. Some models have different controls (i.e. Macturn can have OSP-P100L, OSP-P200L or OSP-P300L). So checking the code or specification to determine the control model is not possible, and there aren't any known variables like a control model number so the conclusion is its impossible to check a machine or controller model based on the program code or a variable. Program that runs on Macturn with OSP-P100L will also run on Macturn with OSP-P300L..... assuming they have same spec/options, programs are compatible across different controls and machines.