08-19-2005 04:59 AM
08-25-2005 10:22 AM
Hi wang:
At first, do you really need to use MAX panel? The Scope Soft Front Panel is a better option ...
You can use external trigger to start the acquisition. So, you need to connect the signal of beep button to the external channel.
At the MAX Panel:
- Choose "Advanced" Button
- Choose "External" for Trigger Source
- Set the value for Trigger Level (beep button signal voltage/2)
- Select slope/edge
- Close this window
- Configure Data Mode to "Continuous"
- Press "Start" Button
Now, the signal of your beep button will start the acquisition
At the Scope SFP:
- Configure vertical and horizontal settings
- Choose "Edge" for Trigger Type
- Choose "External" for Trigger Source
- Set value for Trigger Level (beep button signal voltage/2) and configure the Trigger Slope
- Choose "Normal" for Trigger Mode
Now, the signal of your beep button will start the acquisition
08-31-2005 06:37 AM
Hi,
I don't understand why I need to use external trigger source to acquire the signal on MAX test panel. Can you explain?
Because I don't need to use external trigger when I measure the sine waveform from function genrator, I can get
a sine wave on MAX test panel.
08-31-2005 02:38 PM
09-05-2005 02:37 AM
Dear Marcelo Fernandes :
Thank you for your soltion.
I still got a question.
Can Scope Soft front panel make a continous data mode like MAX?
Is it immediate? are there any thing to concern?
Is CH1 and CH2 input trigger source equal to external trigger source according
to your previous mail?
I am very appreicate your help.
09-06-2005 04:21 PM
Wang,
The acquisition mode of the SCOPE Soft Front Panel is by default continuous. Immediate refers to the trigger type used. Here is a description of immediate triggers from the NI High-Speed Digitizer Help file that ships with the scope driver: Immediate triggers occur when the digitizer triggers itself. There is no external signal that triggers the acquisition—the acquisition simply begins immediately after being configured by the driver software. Immediate triggering is the default option on NI high-speed digitizers.
You can find the Help file in the following location: Start --> All Programs --> National Instruments --> NI-Scope --> NI High-Speed Digitizer Help.
As far as the trigger sources used, you would need to look at the help file for the different trigger types and whether channel 0,1 are supported as trigger sources (i.e Digital trigger is not supported through channel 0 or 1. Only RTSI, PXI Star Trigger Line, PFI Line support digital triggeers).
Ayman K
09-07-2005 04:50 AM
Dear Ayman:
I got the voltage signal but I could not get the signal as it appear on the real oscilloscope.
In the real oscillospe. I got the AC voltage signal 5.1 volts and then it will go back to 0 volt horizontal line
after 1 to 2 seconds. But in SCOPE Soft Front Panel, I got my AC voltage signal 5.1 volts, bit it did not
go back to 0 volt horizonel line.
I told you my setting. I used CH0, 2 volt / per division, AC couple. My horizontal axis is 10 microsecond/div.
Trigger: edge, rising slope, 2.5volt level, ch0 for source, normal., DC couple.
Can you tell me how to get a signal like a real oscilloscope?
09-07-2005 01:04 PM
Wang,
It looks like you already asked this question under Service Request 7087840 to Allan. It would be better if you can focus your questions on one thread so that they are addressed promptly and accurately. At this point, please let me know whether you want your quetsion to be answered in the discussion forum or through email.
I eagerly await your response.
Ayman K
09-07-2005 09:16 PM