niTClk Synchronize (VI)

NI-TClk Synchronization Help

Edition Date: August 2016

Part Number: 370956M-01

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Owning Palette: NI-TClk Synchronization VIs

Synchronizes the TClk signals on the given sessions. After the niTClk Synchronize VI executes, the TClk signals from all the sessions are synchronized.

Note  Before using the niTClk Synchronize VI, verify that your system is configured, as described in the PXI Trigger Lines and RTSI Lines topic.

niTClk Synchronize


sessions specifies the array of session references that are being synchronized. Obtain session references from the instrument driver by using the <driver name> Get Session Reference VI, where <driver name> is the name of the instrument driver, for example, the niScope Get Session Reference VI.


minimum T clock period specifies the minimum TClk period, in seconds. The minimum period for a single chassis/PC is 200 ns. If the specified value is less than 200 ns, NI-TClk automatically coerces the minimum TClk period to 200 ns. For multichassis synchronization, adjust this value to account for the propagation delays through the various devices and cables. Valid values are 0.0 s to 0.050 s (50 ms), inclusive.


error in (no error) describes error conditions that occur before this node runs. This input provides standard error in functionality.


sessions out passes the array of session references to the next VI.


error out contains error information. This output provides standard error out functionality.


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