Ok. And what about the different pin numeration list? Can I change it manually? I looked at the "my_LinuxCNC_machine.ini" file but I didn't found the I/O list.
There are several pin numbering schemes throughout the system, and they don't line up for fairly good reasons.
There are the GPIO numbers associated with the FPGA, which in turn do not align to the pin numbers on the chip.
Then each of these is connected to a pin on the DB25 connector or HD50 connector.
Then, on the Mesa daughter boards the terminal block numbers are another numbering scheme, and these don't match the DB25 numbering, partly because there are lots more of them on many cards because the DB25 is partly carrying serial data.
Then the firmware on the FPGA determines which pin stepgen.0.step is on, for example (and this part _can_ be changed by changing the firmware)
You can get the actual pin numbers that you need, and the information about where each with mesaflash.
Code:
mesaflash --addr 10.10.10.10 --device 7i92 --readhmid
Will give you a printout which lists what is on each IO pin number, what the associated DB25 pin number or header pin number is, and which FPGA IO pin it is.
and then connect the stepper drivers to LinuxCNC (step/dir) 
