Board AT-MIO-16XE-50

can somebody tell me what is the buffer size of the data acquisition board AT-MIO-16XE-50. because i would like to use this board for continuos analog data acquisition, i would like to know the capacity.in manual it is written input FIFO (words) 512. is it the size of buffer.if it is the size?what is the meaning words 512.and if i define the size in my AO config output VI what size should i define.
thanks regards

ok thanks for your reply.
you are right. i want to output voltage to the oscilloscope . it is a sine wave.it could be 1 million,it could be 50,000thousands, any number it could be. obviosly i can wire Function generator to the signal input directly to the AO write,but i am not using this function generator deliberatly, because i want to send the signal(voltage) fixed number of periods andif i use our function generator i dont have periods as input there.and one other thing that my sine is also not true sine(example attached).this 1 million period will be run on oscilloscope for the some corresponding time. this periods must run on the ossilloscope and afterwards they must stop.another example if i send 50 periods.50 periods must run and then they must stop.the time of execution of these 50 must be corresponding time, means when 50 periods finish their execution,the indicator shows that they took xyz seconds for their completion. i am sending you three VIS.moreover i break and pause the Vi as well. i also tried implemet this concept. but it does not work.may be some bug in Ao start.
1VI) in this VI i am generating the array(i am looking for such an array with different amplitude and as i said N number of sine periods i would like to send to AO write.
2VI) in this VI i am showing how i am getting the required time, when i am giving/converting periods and frequency to total time. i dont know why it is not working. you know the periods i send finish early and the VI still not ends its execution.this is wrong time, because if i send 50 periods with 1.6Hz frequency then they must finish in corresponding time.if periods finishes and the time indicator shows,still some time left,that means there is something wrong.this is also one of my big problem
3VI)here my complete VI, where i am trying to buffer all these periods, pause them and resume them, but unfortunately it is also not working properly because when i send 20 periods and dont stop it.then it works fine, but when i send 20 periods, break it and i wanna resume it from the moment/period when i pause it starts agai from the begining. why?
i hope i explain all of my problem.
Attachments:
assymetric_sine_sub.vi ‏41 KB
041027_frequency-time_conversion.vi ‏15 KB
041013_functiongenerator_neu.vi ‏217 KB

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How to calculate min/max scan rate of PCI-MIO-16XE-50

My board: PCI-MIO-16XE-50 , 20MHz timebase
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Hi May
Check out the knowledge base locate at http://digital.ni.com/public.nsf/websearch/EA4E306828AF05B586256B8F00661A8B?OpenDocument . I think it answers your question.
Serges Lemo
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Does NI-DAQmx base 1.4 support MIO-16XE-50 boards?

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Your question should be posted under "Measurement Devices >> Multifunction I/O" instead of "Real-Time DAQ" because the PCI-MIO-16XE-10 board is not a real-time device. The category "Real-Time DAQ" is reserved for 7030 real-time devices.
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How to do a single channel DAQ using NI-DAQ driver software with a PCI-MIO-16XE-10 card

Hi,
I would like to find out how I could do a simple one channel Data Acquisition from a signal generator using the NI-DAQ driver software with a PCI-MIO-16XE-10 card.
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CString sFunctionName("");
double volt[OUTPUT_POINTS*2];
double out[OUTPUT_POINTS*2];
short timebase, ready, code, stopped;
unsigned short sampleInterval;
int i, status, count=0;
unsigned long update, points;
short* ai_buffer;
short output_ch_vector[16];
int local_ITERATIONS = 2;
SAFEARRAYBOUND bound[1];
double dataItem = 9.9;
long j;
long k;
double* pTheValues;
LPTSTR lpsz_ErrMsg;
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Initializes the hardware and software states of a National Instruments
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// Check return code from Init_DA_Brds
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sError.Format("Code error: %d", code);
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AfxMessageBox(lpsz);
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Hello,
Please take a look at lots of examples available at :
1. www.ni.com >> NI Developer Zone >> Development Library >> Measurement Hardware
2. C:\program files\national instruments\ni-daq\examples\visualc
Sincerely,
Sastry V.
Applications Engineer
National Instruments

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Smaria,
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Exclamation Mark Appears with Error Code 10 on Windows XP/2000/98 After Installing AT-MIO-16E-10
Spencer S.

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Sastry Vadlamani
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National Instruments.

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Can I generate sine and square waves with NI PCI-MIO-16XE-50 card??
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You certainly can do that. The way to go about that is to use one of the Analog Output channels your board have available.
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Using external time base on PCI-MIO-16XE-50

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PCI-MIO-16XE-50 abruptly failed

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I suggest you to contact NI technical support. The issue might be from something silly up to a damaged board, but that cannot be troubleshooted easily by this mean.
Follow this link to contact NI technical support: http://www.ni.com/ask
L Aguila
Applications Engineer
National Instruments

Problem integrating PCI-MIO-16XE-50 and AMUX-64 T multiplexer

I can test the PCI-MIO-16XE-50 card in MAX but i can not test the virtual channels

Hey Hiral,
The AMUX-64T does not support virtual channels. You'll need to acquire the data and then perform the required scaling in software. The following document discusses how to access the appropriate channels.
How do I Address an AMUX-64T with an MIO Board?
This next document may also be useful. It discusses how to perform the necessary scaling for a thermocouple channel in LabVIEW.
Taking Thermocouple Measurements Using the AMUX-64T
I hope this helps!
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Updating an old system we upgrade DAQ card with one we tough was "all" identical, but I found that the DIO port is not. In fact the MIO-16X can be define as an 4 bits port but not the new card PCI-MIO-16XE-10. Unfortunately the Vi we are using was design with the 4 bits capability (4: Input, 4 Output). To minimize the modification of the software any suggestion...

Hello;
You didn't mention what Software language is being used to program the board, but, the best way to go about that is to mask the port, so you can have 4 bits working as input or output.
If you mask the port, you can still use your code as the port was a 4 bit port.
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Filipe

Why does my AT-MIO-16XE-10 not work in Windows 2000?

OS is current w/ sp2. Using Ni-DAQ 6.9 and LabVIEW 5.1.1. Board will not properly install, regardless of computer (tried several mainboards, different bios versions, etc.). Board will work under windows 98, however, we don't use this OS for security reasons.

I would suggest completely uninstalling NI-DAQ from your computer and reinstalling with the board out of the computer.
1 - Goto Add/Remove Programs and remove NI-DAQ 6.9
2 - Click on the Start button and goto 'Run'
Type in regedit to bring up the registry editor
Follow this path to the NI-DAQ folder
HKEY_LOCAL_MACHINE >> Software >> National Instruments >> NI-DAQ
Delete the NI-DAQ folder
3 - Download NI-DAQ 6.9.1 from our website
4 - Take out AT-MIO-16XE-10 board from computer
5 - Install NI-DAQ 6.9.1
6 - Put AT-MIO board back in computer
7 - Open up Measurement & Automation Explorer and see if it recognizes the board
Let me know if you still cannot get the board to work after this.
Brian

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Hello;
If you are acquiring at more than one channel, you can increase the interchannel delay of that acquisition. The board you have has two main clock signal to synchronize the acquisition, the first is the Scan clock which will determine the frequency of each Scan (which is composed by the number of channel you set to be acquired), the second is the channel clock, which will switch the multiplexer which routes each channel to the onboard ADC. If you need to delay the acquisition of one particular channel, you just need to increase the time that each channel is sampled, by changing the interchannel delay of the acquisition. If you are acquiring just one channel, it would be good if you could get a signal of some sort from the ADC you are reading data from and us
e that signal to trigger a delayed pulse on one of the general purpose counters your board has. Then you can synchronize the analog input operation based upon that delayed pulse. For more information on how to synchronize DAQ operations, you can refer to an Application Note named "Advanced Synchronization Techniques for Data Acquisition" which can be found at our Web Site.
Hope this helps.
Filipe

Board AT-MIO-16XE-50

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