Connector block 16 analog input channel for 6036E

sugesst me connector block of 16 analog input channels compatible with 6036E daq card

Thanks for contacting National Instruments.
You really have two choices in connector blocks: the SCB-68 and the CB-68LP. The CB-68LP is inexpensive, but unshielded. If you are concerned about introducing noise into your signal, or if you are talking small measurements (mV range), then the shielded option, the SCB-68, will be better for you.
Regards,
Mike G.
National Instruments Support

Similar Messages

Programming Analog Input Registers for MSeries NI-6221

I am trying to understand the Preliminary M Series Register Map in order to correctly setup and acquire data from the Analog Input channels of my PCX-6221 card. I have been able to figure out the DIO locations and use them but I am having trouble understanding what I have to do to configure and acquire data using the Analog Input registers of the card. I need to program at this level for an RTX application using Microsoft Visual Studio Net 2003 and have had great success doing so with other NI Cards. I have tried looking at the examples provided by the MDDK but I haven't been able to create a environment that allows me to compile them with Chipobjects and it appears like alot of the work is hidden by the subroutines.
I wonder if someone had a high level algorithum using the Register Map it would help out alot.
Questions:
How would I create a multiple channel Scan List and load it into the card setting gain etc...
How would I configure the card to acquire continously at a specified freq (ex 1000 samples a sec)
How would I start/stop acquisition
I would guess getting the status of the FIFO and accessing the FIFO is a matter of reading the AI_STATUS_1 and AI_FIFO_DATA locations
Would looking at the Register Programming Manual for the "E" Series help me or just get me more confused?
Thanks in advance for any light you can shed on the subject.
Floyd

Hi Floyd-
Let me address your questions individually:
How would I create a multiple channel Scan List and load it into the card setting gain etc...
A multi-channel scanlist can be created as shown in the method aiConfigureChannel() from ai.cpp in the M Series MHDDK \Examples folder. Note that the other operations leading up that point (notably, aiClearConfigurationMemory() must be performed in the order shown in the various AI examples. aiex3.cpp is the most useful starting point for investigation, in my opinion.
How would I configure the card to acquire continously at a specified freq (ex 1000 samples a sec)
aiex3.cpp shows how to setup the device and its DMA controller (aka the "MITE") for DMA operation. In order to configure for continuous operation you set the "continous" flag in that example to kTrue. The effect of that setting is to program the STC-II to generate either a finite or continuous AI sample clock. This programming is performed in the function aiNumberOfSamples() from ai.cpp and has the effect of setting the appropriate bitfield for continuous operation in the AI_Mode_1 register.
Earlier in your post you asked if the STC Technical Reference Manual ( http://digital.ni.com/manuals.nsf/websearch/E929838D7D0EE50986256728007FEADF ) would be a good reference. In fact, it's a great reference from the perspective of understanding the bitfield/register names and understanding the basics of how the timing hardware works (for example BC, UC and other sample counters are all functionally equivalent in the STC and STC-II). From the perspective of actual register writes and reads, the functionality is different between E Series and M Series. The biggest difference, as another forum user alluded, is that we map and write directly to the registers on M Series so Windowed_Mode reads and writes are no longer necessary.
Another difference between STC and STC-II is that the STC-II uses NI TIO-style counter/timers. For that reason, the NI 660x RLP manual ( http://digital.ni.com/manuals.nsf/websearch/4CE1C778F442B01386256C870060F9F3 ) would be a good reference for M Series counter/timer operations.
How would I start/stop acquisition
Assuming you don't need an external start trigger, you only need to write to the strobe bit AI_Command_2->AI_START1_Pulse. This will create a single start trigger pulse internally. The differences between AI_START1 and AI_START are described in the STC Technical Reference Manual.
A finite acquisition would be stopped automatically by the AI timing engine based on the number of samples you program via the method shown in aiNumberOfSamples(). Continuous AI would be stopped by first stopping the DMA operation and then calling aiReset().
I would guess getting the status of the FIFO and accessing the FIFO is a matter of reading the AI_STATUS_1 and AI_FIFO_DATA locations
Yes, this would work but I would strongly suggest using DMA as shown in aiex3.cpp. If you want to use "programmed I/O" to read the FIFO data directly, that method is shown in aiex2.cpp
Would looking at the Register Programming Manual for the "E" Series help me or just get me more confused?
In many cases it would be very helpful. See my comments, above.
I have inherited code that works on 65xx cards which I am pretty sure uses windowed mode that I am using in this 6221 driver. I have found that I can set the PLL registers to act as DIO and I can read the Discrete inputs just fine. Makes me curious, if Windowed mode is not used doesn't that mean the addresses are relative to the BAR1 address? Why then am I able to read the DIO?
I'm not sure why this would work- it's possible that some legacy functionality is still working due to the way you access the hardware in your code. For full functionality with M Series you must use mapped memory I/O to write and read from the device's registers.
Also starting with Clock_and_FOUT according to the example I set it for Slow_Internal_Timebase. But when I read back that Address it is always zero. According to the register map it is a "write". Does that mean I can't read it's contents? Or do I seem to have a problem because I am trying to use windowed mode with this card.
Yes, the "write" registers are write-only and the "read" registers are read-only. The effect of data read from or written to "write" or "read" registers, respectively, is undefined.
Hopefully this helps-
Tom W
National Instruments

Writing more than 16 analog input channels into a single file

In DasyLAb 10.0, how can I WRITE more than 16 analog input channels (using WRITE DATA block) in one single file? I do not want to use 2 WRITE blocks, as I want all my data samples in one single file.

Another few questions:
In the merge block, what is the difference between Blockwise mode and Sample mode?
Also, now that I am using the Merge blocks (2 inputs to 1 output) to combine my analog inputs; how would I have to modify my WRITE block so that I can ultimately obtain both my inputs to be written in the same file in seperate columns. Could you please explain the settings I need to make on the WRITE block.
Thanks!

How to trigger from analog input channel

I am using a BNC-2110 into a 6062E card. And I am sure this question has been posted several times but I was unable to find a clear answer. I am trying to use the devices ai0 channel as my trigger source. I tried using a voltage source in the trigger reference, and that almost works but it only works for several loops before coming up with an error. If someone knows what I may be possiblely doing wrong or where to find this information, any assistance would be great.
- there is always an easy way, but it is always the hardest to find

Hey Henry,
The BNC-2110 is just the connector block. What card do you have the is interfacing this block with your computer? (should be a PCI or PCI-express card). Are the GPS receivers outputting digital signals that conform to TTL compatible logic levels (are the signals 5V or 0V with no more than 1.6mA of current)? If they are outputting a digital signal, then you can send these signals into any of the PFI lines to act as a trigger (or to the trigger lines).
For example, if you would like to perform an analog acquisition each time the trigger hits and have an X series card, you can open up example finder (help»find examples...) and then open Hardware Input and Output»DAQmx»Analog Measurements»Voltage»Cont Acq&Graph Voltage-Int Clk-Retriggerable.vi. Then make sure your Trigger Source parameter is set to the same PFI line that you are sending your GPS signal to (on the BNC-2110, the trigger connections are really just PFI0 and PFI12, but these are common lines to use for triggers, but any PFI line will work). If you have an M series card, and cannot do retriggerable analog input, you can reference this example for how to use counters to workaround this limitation of our M series cards: https://decibel.ni.com/content/docs/DOC-6801
If your GPS signal isn't digital, and is some arbitrary analog square wave, you can use an example like this: https://decibel.ni.com/content/docs/DOC-4657 to use the analog value to trigger you're reading (you just need to set the appropriate window for your analog signal in the VI). I hope this helps!
-Nathan H
Software Developer
National Instruments

"Chassis Temperature" in Analog Input Module for FPGA (cRIO-9201)

I have just gotten my cRIO with a analog module (9201) and a digital output module (9472).
When I place an Analog Input Module on my block diagram and double click it, I can choose from the following inputs:
Channel 0 through Channel 7
AND
Chassis Temperature
I have tried to find any documentation for this "Chassis Temperature" but so far without success.
If I read this input and feed it straight to an indicator, I get values in the range of 120 to 150.. Now, without more information, this number is rather useless. Does anyone know how to transfer this data to a temperature (either in the Celcius scale or the Fahrenheit scale)?
Thank you!
Project Engineer
LabVIEW 2009
Run LabVIEW on WinXP and Vista system.
Used LabVIEW since May 2005
Certifications: CLD and CPI certified
Currently employed.

I still did not find any documentation for this "feature" but I lucked out and found the following:
in the folder: \labview 7.1\examples\FPGA\CompactRIO\cRIO-910x\
you should have a file called:
cRIO-910x support files.llb
in this there is a convert to temperature vi.
To get the raw data as a temperature, it looks like all you have to do is divide the binary data by 4 and the answer will be in Celcius.
Project Engineer
LabVIEW 2009
Run LabVIEW on WinXP and Vista system.
Used LabVIEW since May 2005
Certifications: CLD and CPI certified
Currently employed.

Multiple Analog input channels affecting each other (DAQ_mx)

Hi, I use NI BNC-2110 / PCIe-6363 + Labview 2012 for my DAQ.
In out task, we acquire two analog samples(these two samples are timed by on board clock, 1000000 rate) from each analog input (AI_0 and AI_4) whenever DAQ receives a digital trigger from PFI0 (rising edge and retriggerable). We will receive 200 triggers and our program will finish until we receive 400 samples on each channel.
The interesting thing is that different analog inputs seem to affect each other. As shown in the figure below, the white curve is analog input AI_0 and the red curve is analog input AI_4. AI_0 is connected to a triangle input and the curve
below seems right. AI_4 is actually shorted (some result if open) but the acquired data is affected by AI_0.
However, this problem does not occur when only one channel is used in vi (Only the "create channel" and the "read" vi's are changed to be multiple sample and we repeat the experiment with everything else unchanged). So I believe it is not an actual voltage problem before the BNC-2110 board receives the analog input.
Any idea about how to solve this? Thanks in advance! Happy new Year.
Yang
Attachments:
Two Analog Inputs.vi ‏23 KB

I used a wire to connect the BNC core and BNC shell on AI_4 when I shorted it(it is set on floating source mode).
The effect happens even if I have some other kind of input in AI_4(the input is like a stair case but it is always modulated by AI_1). AI_4 always appears modulated by AI_0.
Actually it will not bother me at all if this only happens when AI_0 is open.
I guess the sample clock (1000000) is too high to cause this(Yep, probably it is Ghosting...). When this rate is 1000, it does not happen as I have just tried.

Displaying multiple analog input channels using DAQmx READ commands.

I am using a NI USB-6009 module in a hydraulic load test stand. I want to read multiple analog voltage inputs and display them on my front panel. Using DAQmx commands or DAQ assistant, LabVIEW will only let you have one READ command for the analog inputs. Can someone point me to an example or give me some ideas on being able to display at least 3 analog inputs? Thanks.

With the DAQ Assistant, when you get a list of 'Supported Physical Channels', look at the bottom of the window. It says "<Ctrl> or <Shift> click to select multiple channels. When you use the DAQmx Create Channel and have a physcial channel control/constant, click the little arrow on the right side of the control/constant, select browse and use the same <Ctrl> or <Shift> click technique. If you want to enter the channels manually, the format is Dev1/ai0:2 for consecutive or Dev1/ai0,Dev1ai3 non-consecutive channels.

How to set audio hardware input channels for narration & to what?

Searched forum - hope I didn't miss solution for the following:
Using PE3 in Windows XPSP3
Tried for the first time to add narration to a project. Was using a stereo/microphone headset. Got nothing but noise. Could record in Windows recorder and Audacity. However, the microphone as part of the set would not work in Windows Audio Hardware Test Wizard. The set was using a sound chip on the motherboard.
A friend of mine has the same OS, motherboard and is using PE3. He too had never tried adding narration - but tried with a USP connected set, and was successful.
I removed my stereo set, and connected a USB set. To make sure all settings were reset, I did a cold reboot. The USB set worked in Windows Audio Test Wizard. I opened my project again, and in Edit/Preferences/Audio Hardware, clicked AIIO Settings. Unchecked the old set (Realtek) in both the Output and Input Ports area, checked the USB Audio Device, moved to the top of both lists.
Then tried to add narration and got the error message "Your current audio hardware selection does not have any input channels. Please use Preferences>Audio Hardware to correct this problem.
Thinking that maybe this was a preset for the project and couldn't be changed, I started a new project, no video, just tried to add narration, and got the same message.
The entries in the columns in the ASIO Direct Sound for Full Duplex Setup menu for the USB Audio Device in the Input section are: 2048, 0, 1, 16, Yes
The only one of these that seems to be able to be adjusted is the second number - the Offset (Samples). The Audio Channels number is set to 1 and doesn't seem to be changeable. Suggestions?

When working with Audio in most NLE's, i.e. Premiere Elements, or Pro, there are basically three areas that can affect how the Audio is handled on one's system. First, there is the Sound settings in Windows (from Control Panel). Next, the Audio card/chip probably/possibly has a console to make settings at the card/chip level. Last, and these are really two locations, but I'm only counting them as one since they are both in the NLE - Edit>Preferences>Audio & Audio Hardware. This is where Steve is referring to. Check all settings, and I'd suggest doing so in the order that I listed them above: OS, Audio card, then Premiere. A Mute, or by-pass in the first two, can override the settings in Premiere, and you may have its setting correct, but still not be able to effectively use your hardware.
The exact settings chosen will depend on the exact hardware that is properly installed. Without knowing all of your hardware and other settings elsewhere, one cannot give you a definitive answer. Ideally, in the settings drop-downs, you *should* see your hardware listed. Look closely, as these can be a bit cryptic.
If you are still unable to get your hardware working properly, a fourth place to look would be Control Panel>System>Hardware>Device Manager for your Audio hardware. Check that Device Manager sees your hardware, and that it is working properly.
If all is set up properly, but still not working, report back with exact specs on your system, including all of your Audio hardware. There are possibly some more steps that can be taken. I will not mention them now, as they *should not* be needed. If you do need further assistance, please list every option in all of the drop-down lists from Premiere, so we can know what your choices are.
Good luck,
Hunt

Analog close channel for agilent 34970A

Hello,
I am a new user of labview.I need some help programming my Agilent 34970A.
I can initiate communication with my instrument and take data,but I want to close a particular channel and read channel several times and average.
I was looking for a VI something like "Analog close channel" using which I can close a particular channel,read it several times,average the data and then go to the next channel.
Could you please help me in this issue,eagerly waiting for a reply.
Thanks,
Harinadh.

First you need to convert your string to a binary datatype and calculate as needed.
Ton
Message Edited by TCPlomp on 11-12-2009 07:40 AM
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LabVIEW, programming like it should be!
Attachments:
reads 10 samples by closing a channel_BD.png ‏10 KB

Help!!! Input channel for a real instrument track

I am connecting my guitar on my mac using M-audio firewire 410. Running garageband 2 i go to track info to set my input. but, It doesnt display input, volume and monitor option. I know the the device is connected by going to input / sound / system references and it shows activity. PLz i need some help.

Do you mean that when you play, the sound coming out of your computer is slightly delayed? If so, yes that's normal. It's called latency and is result of the time it takes for your computer to process the audio. You can fix it by monitoring from your interface rather than from your computer. I haven't used the M-Audio 410, but it is likely to have an option to listen to a mix of the audio you have already recorded in your song and the audio that you are sending in through it. This would entail connecting your speakers to the interface, not to the line out on your Mac.

Programming Analog Input Registers for MSeries NI-6280 under rtx

I have an example of aiex1.cpp,I kown it write some bit in some register,I want to translate it into RTX.but I found some register is only wirte and I also dont kown what the default bits in registers is,so use " *(u16*)addr_tmp|= (1 << 7);" is wrong, what can I do about writing some bits in register under RTX? please help me
beilei
Solved!
Go to Solution.

Hello Beilei,
Yes, the _softCopy starts out at 0. However, please remember that the _softCopy isn't always 0. After the line you mention runs, a value is saved in newValue...after flushing newValue to the register, that value is also saved in _softCopy. Basically, this proceedure ensures that the other bit fields in _softCopy are not modified unintentionally.
If you have any doubts about what is happening, I would recommend stepping through the code while it is running so that you can see what is happening in that line (you may wan to break it out into multiple lines).
~~~~~
Regarding the errors you are getting in RTX, please follow the readme for building the examples with this OS interface. The Readme says that it was tested with RTX 6.1. If you are using a later version, you may need to contend with any changes that may have happened with this operating system. If you work through any issues, please post back to let us know what went wrong. We welcome any feedback about this OS interface!
Thanks,
Steven T

Would anyone know how to program the Labview code for the following: Recording an analog input signal for 100msec and then repeating this 100 times in order to finally have an averaged signal (waveform)?

I have added a vi, but it doesn't quite work. Would be very grateful if someone could help, thanks!
Attachments:
Average_0411041_2.vi ‏77 KB

The attached VI collects 100 ms of data and does a rolling average. Since your sub-VI were not included I created this from scratch. There are comments in the code. I hope this is what you need.
Dirk
Attachments:
rollingaverage110x100.vi ‏47 KB

Programming Analog Input Registers for MSeries NI-6280 under rtx

I have an example of aiex1.cpp,I kown it write some bit in some register,I want to translate it into RTX.but I found some register is only wirte and I also dont kown what the default bits in registers is,so use " *(u16*)addr_tmp|= (1 << 7);" is wrong, what can I do about writing some bits in register under RTX? please help me
beilei

hello,steven! I found another question when using pxi 6280. the exampels what you give is collect Finite point，but i want to collect Consecutive points。now I do not kown what register to control how much point I want to collect because of no pdf about pxi6280.i want to kown what regiser to keep collecting Consecutive points。thanks！
beilei

Input range for different channels

Hi,
In one of my experiments, the data I acquire in different channels have different magnitudes (in Volts). Therefore, I am trying to set a different input range to these various channels. Here's a picture (input_range.png) of a part of my VI where I am trying to assign input ranges to the analog input channels.
Channels ai0-7 have the range +/-200mV and channels ai8-15 have +/-500V. I do not have the equipment with me at the moment, so I can't test this. But I am wondering whether this is how you would normally set different input ranges for different channels or whether there's a better way to do this.
Cheers.
Attachments:
input_range.PNG ‏15 KB

Thanks for the quick reply Mike.
I found the following post which showed me how to do it
http://forums.ni.com/ni/board/message?board.id=170&message.id=318492&query.id=74076#M318492
However, I am having difficulties in actually acheiving this. Firstly, I don't know how to set up the arrays as he's done there. Secondly, I could not get the auto-indexing to work. I've attached a pic of my attempt. When I try to enable auto-indexing on the right-hand side of the for-loop it breaks the wires and I can't even enable auto-indexing on the left hand side.
Will it be possible to attach a VI for this part so I can see what functions you've used.
Cheers.
Attachments:
input_range2.png ‏8 KB

Why is the input mode greyed out when I try to create a virtual channel for my 1102?

I have set up a virtual channel for my SCXI-1102, and the input mode is greyed out with it set to "differential". I have already skimmed this forum for answers, and I have checked to verify that the mode slot under the AI tab for my MIO-E series card is set to nonreferenced single-ended mode. I then created a virtual channel with the device slot under the hardware column set to Dev1_SC1_MD1CXI-1102. At this point, as already stated, the input mode goes grey while set to differential. What's going on?

Hello,
All outputs from the SCXI module are measured in differential mode. You can still mix differential and single ended measurements (if you use the remaining channels of your daq board).
The easiest way to mix modes is with virtual channels. All SCXI analog input channels will be differential, while you can make other virtual channels differential or single ended. If you don't want to use virtual channels, you can use AI Hardware Config in LabVIEW to change the mode.
Hope this helps. Regards,
John N
Applications Engineer
National Instruments

Connector block 16 analog input channel for 6036E

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