Get redings from Xpc target

Hi, I`m Using matlab 2013a in my gradution project to make a control of my system, i use Xpc target to run my control and system,i face a problem in taking the readings of my signals. I can`t find the " send to matlab workspace" in xpc explorer as in matlab 2010 so i used the matlab comand to get the log sample but the problem is the maximum number of sample is 12500 sample, and this value is very low.

please help me to getting my readings of my system.

Thanks for help me...