Samplerate problem using Analog In and Counter In from a NI 6259 USB. "Counter timeout" setting in DAQmx?!

Hello,
I got a fundamental problem with the correlation of the timer settings of the DAQmx driver in DIAdem DAQ. I dont know where the problem is located exactly but maybe someone can help me if I explain what happens:
In my configuration I use some analog inputs from a USB 6259 with 20kHz samplerate and two counter inputs for frequency measuring via DAQmx in DIAdem DAQ.
There has to be an extra DAQin block for the analog inputs and the counter inputs with also an extra "Clock"-block for each of them. The clock of the analog inputs runs with 20kHz hardware clock and the other one with 10Hz software clock because the hardware clock mode is not allowed or supported.
My problem is the display refresh rate in VIEW. If the counter signal has no input (because the measured system is not active) the display seems to wait for any input and doesnt refresh the analog values on screen. If the system is active and a rectangle signal is seen by the counter in, the display refresh rate raises and the frequency value is displayed more or less accurate. Has that something to do with the counter timeout setting in the DAQin driver options block (marked in the attached image)? If i decrease the timeout, the display refresh rate gets better but not as good as without using the counter inputs in my DAQ diagram. I think the counter input is not as easy to handle as the usual analog inputs... I only want to see the measured frequency on the display during the measurement without getting any influence on the analog input channels and their displaying.
The other problem is the display and the measurement of the frequency itself. If i check the function of the counter input in the Meas. & Automation Explorer the frequency is display correct without any dropouts or something like that. The signal I measure in DIAdem on the other side looks quite bad because there are spikes of some MHz and even more although the measured range is between 20 and 80Hz!
Has anybody made similar experiences?
Regards
S. Zimmer
Attachments:
probs.png ‏112 KB

Hi there,
it seems that german is your mothertongue, so I'll reply on german.
Digitale Eingänge müssen Software getaktet werden, da nur analoge Eingänge Hardware-Takt Unterstützung haben!
Sie können den Hardware-Takt nur mit analogen Eingängen einsetzen, die, von einem Timer gesteuert, gepuffert Werte einlesen können. Digitale Größen verarbeitet der Hardware-Takt nicht.
Mit dem Hardware-Takt erreichen Sie sehr hohe Abtastraten. DIAdem überträgt die gewünschte Rate und die Kanalliste auf die Karte und startet die Messung. Die Hardware erfasst die Daten selbstständig und sammelt die Daten. Der PC ist nur für den Abtransport und die Weiterverarbeitung verantwortlich.[...]
Da digitale Signale nicht im Hardware-Takt erfasst werden können, müssen diese Signale parallel in Software-Takten ermittelt werden. Dies kann zu zeitlichen Verschiebungen führen, weil sowohl beim Start der Messung als auch während der Messung keine Synchronisierung der Timer im PC und im Messgerät erfolgen kann. Da zwei Timer nie ganz genau gleichzeitig gestartet werden und auch nie ganz genau gleich schnell laufen, stimmen die Zeiten in den Zeitkanälen nach der Messung nicht genau überein. Üblicherweise betragen die Abweichungen einige Millisekunden.[...]
Weiters hab ich mal n Versuchsaufbau für die Frequenzmessung gemacht. Ich konnte problemlos Frequenzen messen...
Am besten du schilderst kurz den Aufbau deiner Messung, was du messen möchtest und wie du den Max konfiguriert hast.
Mfg Markus

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    We just upgraded to ME 5.2 SP5 patch which was released two days back, the problem with Simultanious group is fixed and SFC gets the correct next step as per defined in the router (Previously there was bug).
    But when we try to use change production and put SFC in simultanious router at some particular operation as que it is getting in que at all operations and really can be started and completed even at the last operation.
    Same is the case with step status if we put it in que at some intermediate operation all operation listed above are becoming in que irrespective of the flow defined in simultanious router.
    Please let me know how to handle this.
    Regards,
    Pushkar Patil

    Hi Pushkar,
    It seems to be a bug. I would suggest opening a ticket on this.
    Regards,
    Alex.

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    Welcome to the discussions, Charles266!
    However, when I take my Express to another room and connect it to a Solwise Gigabit Homeplug and my other homeplug connects to my network I then seem to have problems.
    Connection Sharing = Share a public IP address
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    If you have the Express connected back to another router (it will have 3-4 ethernet ports), then the correct setting for Connection Sharing would be "Off (Bridge Mode)"
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    Probably not a virus or malware, as both are relatively rare on Macs.
    Probably not a hardware problem that requires "repair".
    This is probably a software problem that can be fixed with a little thought and routine maintenance maneuvers and troubleshooting.
    Here are some basic troubleshooting and maintenance maneuvers:
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    2. repairing your hard drive When to Run First Aid in Mountain Lion's Disk Utility - For Dummies
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