The feedback node is not working and error message appears type not supported in the current targe

[mahosa2003]

Hi All

I am doing a simple estimation program which tracks certain signals, I am using cRIO 9024 and I put some feedback nodes and some arithmatic operations in simple while loops with case selection. I am not able to compile the program since many error messages says the following:

Wire: type not supported in the current target

Attached is the VI model .... Thanks for your help

[crossrulz]

FPGA code does not allow for Double Precision Floating Point numbers (DBL).  Change the initial condition constants to be either I16 or to match your fixed point data type.