MPPT C Block

Hi everyone, hope if anyone in this forum has used the simcoder C block can guideline me how to write mppt code in simcoder c block. i found a ploblem that simcoder does not support ‘t’ and ‘delt’ which refer to time and time step in this block. Can any one suggest my problem or guideline me?
I look forward to your help.

Simply, you can define those variables and give them initial values in your code.