Your are right.
I have changed to 9600 and the comunication worked, but then when I downloaded the program with the new paramaters the on-line connection via serial and TCP/IP, now its not working and I think that it is because the baud rate. I test in another PLC that was with the same program but with other baud rate (a greater one) and the on-line connection worked.
Now I can't conect with the PLC to change that... You have any ideia what can I do now? I have already try to connect with a cable to serial connection and reset the PLC but that isn't working.
The MB 107 is for simulate the SB2, just for test.