Getting/Setting the System Date/Time on CVS and PXI RT Targets

This example program capitalizes on RT Set Date and Time.vi to get/set system date and time on any RT target with an ETS real-time operating system. The user is given the choice to simply read back current system date and time, set the system date and time to be in accordance with external time servers, or manually set the date and time of the RT system.

This VI opens a connection to a DAYTIME server. The example uses two NIST time servers, time-a.nist.gov and time-b.nist.gov. See the link below for more information on these time servers. You can get a list of other public time servers from the Internet. After establishing a connection to a DAYTIME server, the VI gets and sets the system time. For more information on these time servers, follow the included link to the NIST website.

DAYTIME is simpler version of the well known NTP (Network Time Protocol) standard.

Requirements

Filename: 3896.llb

Software Requirements

Application Software: LabVIEW Full Development System 7.1
Toolkits and Add-Ons: LabVIEW Real-Time Module 7.1
Language(s): LabVIEW

Hardware Requirements

Hardware Group: Vision (IMAQ), PXI/CompactPCI
Hardware Model: PXI-8145 RT, PXI-8146 RT, PXI-8156B RT, PXI-8186 RT, PXI-8175 RT, PXI-8176 RT, PXI-8184RT, PXI-8170 RT

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DAYTIME, not NTP
This example uses the DAYTIME protocol instead of NTP to retrieve the date and time from the server.
- Christian Loew, National Instruments. christian.loew@ni.com - Aug 10, 2007