The truth is that the program was at its very best beggining ( - |SB2| - PID Config ). So there wasn't much to send. Fortunately I already got a reply from Unitronics support and the problem is already solved.
The solution is that I had to use the functions blocks (for run PID, configuration, etc) from PID Autotune menu rather than the PID menu.
Anyway the project is proceeding and I am sure that I will come up with other questions for help and advice. So, stay tuned .
Thanks a lot for the interest Joe.