Ni PCI 6013 syncronization

[Pieter]

I wonder if you can help me, i want to give the PCI 6013 I/O card a reset signal every 1 second. Is it possible in anyway to do this. I aim to syncronize a few of the cards i am going to use in a measurement campiagn with the help of a GPS SYSTEM. I would appreciate it tremendously if you could give me any suggestions on how i can accomplish this, with the use of your PCI 6013 I/O/ card. I am using Labview 7 to do the measurements.
Kind regards

[RIO-Todd]

Hello Pieter,

What do you mean by reset? When you receive this reset signal, what exactly are you wanting the PCI-6013 to do? Are you wanting the entire device to reset (like calling the Device Reset VI)?

There isn't a pin on the DAQ device that will accept a signal to automatically reset the device. If the reset signal is a digital signal then you could use a digital line on the PCI-6013 to continuously poll the reset signal. When the signal reaches a certain value you could then call the Device Reset VI to reset the device.

I hope this helps. Let me know if you have any further questions.

Regards,

Todd D.
NI Applications Engineer

[Pieter]

Thank you, it already helps a lot.What i aim with the signal( will be a digital signal) is to force the labview measurement program to measure at specific time intervals. In this way i can syncronize 2 or 3 measurement programs on different computers by sending the signal by a gps system, and when they receive the signal they must measure at the same time.
do the labview 7 pakage and the pci6013 accomodate this.

Thank you for your great product support

Pieter vd W.
Potch University

[RIO-Todd]

Hey Pieter,

Another suggestion. If you are wanting to synchronize the analog inputs with the gps digital signal, an easy way to accomplish this would be to use the gps digital signal as an external clock for the analog input operations.

If you use a digital signal as an external clock, you will acquire one reading from the channel(s) in the scan list everytime the digital signal has a transition. This would create an easy way for the gps signal to set when you are actually reading data. Take a look at the LabVIEW shipping example 'Cont Acq&Graph Voltage-Ext Clk VI' that illustrates how to continuously acquire from analog input channel(s) using an external clock.

I hope this helps. Good luck with your application.

Regards,

Todd