Table Of Contents

Serial DIO versus Parallel DIO Modules

Version:
    Last Modified: February 26, 2018

    Serial digital modules have more than eight lines of digital input/output. They can be used in any controller slot and can perform the following tasks:
    • Software-timed and hardware-timed digital input/output tasks
    Parallel digital modules can be used in any controller slot and can perform the following tasks:
    • Software-timed and hardware-timed digital input/output tasks

    • Counter/timer tasks (can be used in up to two slots)

    • Accessing PFI signal tasks (can be used in up to two slots)

    • Filter digital input signals

    Software-timed and hardware-timed digital input/output tasks have the following restrictions:
    • You cannot use parallel and serial modules together on the same hardware-timed task.

    • You cannot use serial modules for triggering.

    • You cannot do both static and timed tasks at the same time on a single serial module.

    • You can only do hardware timing in one direction at a time on a serial bidirectional module.

    To determine the capability of digital modules supported by the controller, refer to the C Series Support in NI-DAQmx document by going to ni.com/info and entering the Info Code rdcdaq.


    Recently Viewed Topics