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How Can I Synchronize My PCI-6071E With My PCI-653x?

Primary Software: Driver Software>>NI-DAQ
Primary Software Version: 7.2
Primary Software Fixed Version: N/A
Secondary Software: N/A
Hardware: Multifunction DAQ (MIO)>>E Series>>PCI-6071E, Digital I/O (DIO)>>High-Speed>>PCI-6534, Digital I/O (DIO)>>High-Speed>>PCI-DIO-32HS-T, Digital I/O (DIO)>>High-Speed>>PCI-6533

Problem: I want to synchronize the analog input of my 6071E with the pattern generation from my 653x. How can I accomplish this using NI-DAQ function calls?

Solution: Complete the following steps.
  1. Connect the two data acquisition (DAQ) devices with a RTSI cable.
  2. Use the RTSI bus to transmit the Scan Clock from the 6071E to the 653x.
  3. Configure the 653x to use that external clock to perform its pattern generation. The following code example shares the appropriate signals across the RTSI bus.

    /* Move the AI Scan Clock from the 6071E onto RTSI Line 0 */

    Select_Signal (1, ND_RTSI_0, ND_IN_SCAN_START, ND_LOW_TO_HIGH);

    /*Because the Select_Signal ( ) function will not work with the 653x, we must use the RTSI_Conn( ) function to connect RTSI Line 0 to REQ1 on the 653x (external clock)*/

    RTSI_Conn (2, 0, 0, 0);
If you are using NI-DAQ 6.9.x or earlier, refer to the NI-DAQ Function Reference Help by selecting Start»Programs»National Instruments for more information about the Select_Signal ( ) and RTSI_Conn ( ) functions. If you are using NI-DAQ 7.0 or later, refer to the Traditional NI-DAQ Function Reference Help by selecting Start»Programs»National Instruments»NI-DAQ.

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Report Date: 04/25/2003
Last Updated: 06/23/2004
Document ID: 2WOGJRY1

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