This document shows the results obtained experimentally for the deduction of transfer functions of a tanks plant connected in cascade through measurement of level and temperature variables. To obtain the characteristic curves that describe the behavior of these variables were used sensors installed in the process. Also, the design procedure of a multivariable controller with integral action is described. The digital controller is implemented in real time using the Toolbox Simulink® and software tools from Matlab®, obtaining static and dynamic responses of successful operation to ensure system operation to a temperature and level desirables, applied to production processes.