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From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
05-02-2013 07:45 AM
Hello All,
I have been using LabView for about 3 months now and have managed to reduce the execution time of an VI from about 20 ms to 3 ms. However, the requirement is less than a ms.
We are looking at only the Torque measurement (Drehmoment). The data is acquired from a Kistler Torque Sensor and then passing through an NI M Series device (SCB-68) comes into the workstation. The data is acquired using DAQmx (can be seen in Multi Global Channels) and then displayed. Now a point is displayed every 3 ms for Drehmoment on the chart. However, I need it faster (about 0.6 ms per point).
Is there something which is slowing down this display.
Please have a look at the attached VI's. A solution needs to be obtained quickly so please respond asap.
Thank You.
05-02-2013 08:17 AM
I am guessing a few are not able to open the attachment above...So I have also attached a PNG file
05-03-2013 10:27 AM
Do you use a Real Time System or Windows?
If it's Windows, you're restricted to 1 ms by the the System Clock when you are lucky.
But there might be a way to forward the "timing" to your hardware.
What Hardware (M-Series) do you use?
With this information I could help you to optimize your VI.
05-06-2013 03:50 AM
Hello Adilo,
I am using a Windows 7 system....with 6 Gb of RAM..
I tried doing it with only the Torque measurement and I got measurement values at every 40 microsec...approx.
But when I put in all the values it shows 3ms.
I am using a SCB-68 M-Series device...pic attached.
05-07-2013 02:32 AM
Thank you for the quick answer!
Your sensor is connected to the NI SCB-68 I/O Connector Block.
I already understood that, but what card is the connector connected to?
Best regards,
Adilo
05-14-2013 08:34 AM
I can't help you without the name of your card.
Greetings, Adilo