![]() ![]() The LabVIEW Scan Engine mode can also be changed programmatically with the Set Scan Engine Mode function, accessed by right-clicking on the LabVIEW block diagram and selecting the Measurement I/O » NI Scan Engine palette. To change the LabVIEW Scan Engine mode, right-click the cRIO-9074 master controller in the LabVIEW project explorer and select Utilities » Scan Engine Mode » Switch to Active (or Switch to Configuration). ![]() In Configuration Mode, the network data is not updated and configuration of the EtherCAT network is enabled, allowing you to add new slave devices and modules and download the NI-9144 EtherCAT slave firmware. ![]() In Active Mode, the LabVIEW program gets real data from the network. LabVIEW streamlines the different EtherCAT states (that is, Operational, Init, Bootstrap, and so on) by grouping them into two LabVIEW Scan Engine modes: Configuration Mode and Active Mode. For more information about the LabVIEW I/O variable and CompactRIO Scan Mode, see the white paper titled Understanding CompactRIO Scan Mode. When you run the VI, the program automatically deploys onto the CompactRIO master. Note: If you use the I/O variables in a Timed Loop, you can synchronize the loop timing source to the NI Scan Engine. ![]()
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