How can I use a single trigger to start 8 counters on a PCI 6602 (2 pulse trains out, 6 single pulses, several channels of DAQ on a PCI 6071E and the two counters (two single pulses also on the 6071E? I suppose it has to be done using the RTSI bus but I don't know how.
Yes, you can use the RTSI bus to do this. With the two boards connected with the RTSI cable, you can call the function Select_Signal.
Have one board recieve the external trigger, use Select_Signal to send that trigger to a RTSI pin. Use Select_Signal again for the second board to read from the RTSI pin as a start trigger.