Acquiring signal from PCI 1428 card

Hi,
I'm new to labview and been tryig to acquire the trigger signal from the PCI 1428 card. Is there anyway to acquire the trigger signal internally without using an external cable (breakout cable)? Can labview acquire this signal without using the external DAQ card?

Hello DjBiomed,
It may help if you can provide more information regarding your application. What are you ultimately trying to do with this trigger signal? With the 1428 trigger line, it needs to be wired to something (either externally or through RTSI). LabVIEW cannot automatically detect this unless it is connected. You can look at the trigger examples that come shipped with the driver in the LabVIEW Example Finder for a better understanding. They can be found on the browse tab under Hardware Input and Output >> IMAQ >> Signal Input and Output. I hope this helps.
Vu

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Error 200141 when trying to measure motor encoder's speed from PCI 6221 card,

Hi,
         I was trying to measure angular speed of a motor from its encoder signal. I'm using Ctr pin from PCI 6221 card take signals from the encoders. The problem comes when I've got an Error-200141 saying "data was overwritten before it could be read". I have tried a few ways as follows to overcome this problem.
     - Use DMA
     - Get rid of the noise from the signal by shielding the wire from encoder to DAQ card and using a capacitor.
        None of those seemed to solve the problem completely. Even though the noise from the signal was removed, I could still see the mechanical glitter at the edge of all the pulses from the oscilloscope. Is that a possible cause of this problem (my technician told me we can do nothing with this glitter. In other words, we can't remove it)?
        Please suggest me how to solve this Error-200141. With this message, I have also attached VI.
        Thank you very much.
   Regards,
   Suksun
Attachments:
Meas Dig Period-Buffered-Continuous-Low Freq 1 Ctr_Angular speed from encoder.vi ‏72 KB

Hi Suksun,
Only had a quick glance at your code, but can you drop the samples to read to 100.
I think what the problem is from what I can make of your code, is that
you have a low frequency counter, that you measure on the rising edge,
however if you don't get a 1000 pulses within 100 seconds, DAQmx will
report an error. So by lowering the number of samples to read you
should be able to get 100 samples in 100 seconds, you should not
overwrite data as the buffer will be sized correctly.
Hope this help
Regards
JamesC
NIUK AE

Read/acquire signal from remaining empty channels of NI9205 by modifying the vi of ATI Force/Torque Transducer which uses the first 6 channelsof DAQ card.

Hello,
I am using force/torque transducer by ATI Automation. It provides me with its own vi to measure and write the data of the 6 signals (3 axes Forces, 3 axes torques)
Following is my Ni system: -
cDAQ 9172 chassis: Slot 5 - NI 9401, Slot 6 - NI 9205, Slot 8 - NI 9237. (Excitation voltage to the sensor/transducer (0-5V) using 9237).
I connect the 6 signals from the transducer cable to channels ai0,1,2,3,4,5 in NI 9205(differential). The vi uses a calibration 6*6 matrix to finally display the calibrated voltage data.
Now, I wish to use the remaining availabe channels that empty in 9205, namely ai17, ai18, ai19 for other signal measurements.
ai17 channel is connected to Hall sensor that gives out a square waveform corresponding to the rotor rpm. ai18, ai19 is connected to rotor-motor power supply's voltage and current signal respectively.
But I am not able to access these 17, 18,19 channels from ATI company's vi. The vi loads the complete DAQ card (9205), uses only first 6 channels, hence the array data wire consists of only 6 channels. I can split these into 6 individual signals only.
If I use a separate DAQ task to read channels ai17,18,19, then I get the error that this channels are reserved for some other task. Please tell me how can I access all the remaining channels apart from the first 6.
I am attaching the vi here.
Steps to run the "MEASUREMENT main.vi" : -
Load calibration file:- FT8840.cal;
Load DAQ card: NI 9205
Load ctr0 of NI 9401 (I am using this counter for rpm measurement purpose, this is my addition to the actual vi)
Attachments:
DAQ - Copy.zip ‏574 KB

There's nothing I can do to help. I don't have your hardware to be able to modify your code and to set it up to make sure it runs properly. Most people on the forum probably don't either. This is where you'll have to put your programming and LabVIEW skills to work to solve your problem and make it run the way you want to. If you run into a specific problem and get stuck, then please post back.

Ramping a pulse signal using PCI-6602 card

I'm controlling a stepper motor and need a continuous pulse output with variable frequency. I need to accelerate and decelerate teh motor (It can't start immediately at a high frequency but needs to be ramped up to it). I can't have any hiccups in the signal or the motor can stall. It seemed I had my own ramp program written (which gradually increased the frequency value sent to the counter) to solve this problem, but when I switched to Office2000 I started getting hiccups in my signal. I also have a PCI 1200 card and could use A/O but I think using the counter signals would be better. If I'm wrong let me know. Once I have the motor up to speed I am reading in a pulse signal to analyze with FFT.
thanks for y
our help.

A few thoughts & musings, hope some of them are useful:
1. The sequence for setting a new frequency should be to first load up the new pulse specs (use 1 & 2, not 3 & 4), then issue the "switch cycle" command to 'Counter Control.vi' You can look at NI's example program called 'Pulse Width Modulator' to verify syntax.
2. If your frequencies are low enough and your loop time is fast enough, you may be trying to update the pulse specs before the previous specs have completed a full cycle. This has traditionally been a no-no, though I'm not 100% sure that it remains one with the latest NI-DAQ drivers.
3. No ideas about the possible interaction with MS Windows and/or Office 2000. Haven't used either.
4. (My own latest installment in a multi-year running gripe at NI): Wh
en oh when will we be granted the ability to perform buffered counter OUTPUT operations? Just as in the analog world, one can acquire a signal with AI and then reproduce it with AO, it would be REALLY REALLY handy in the counter world to measure with buffered semi-periods and then reproduce the same pulse train with a buffered output.

Synchronized sampling from PCI-mounted card and PXI-mounted card

Hi, everyone
My latest problem concerns sampling. I need to acquire samples from around 20 different (differential) channels and my PCI-card (NI-6224) has only 16 differential inputs. I do, however, have another card (NI-6229) mounted in our PXI-system. This PXI-system seems to be connected to the computer with a network cable. When i try to perform synchronized sampling from these cards with the PCI-card as master I get an error message saying that these cards cannot cooperate. There must be a way to do this...?
I'm using DAQmx and labview 8
Einar

Hello!
It is just a matter of taste I guess but I think PXI chassis and synchronization is more convenient since you don’t have to care about physical wires or a RTSI cable.
Data will be stored at your host since it is the Windows application and LabVIEW with its DAQmx Read functions that actually transfer the data from the buffer created by DAQmx to LabVIEWs memory space in RAM.
Regards,
Jimmie Adolph
Systems Engineer Manager, National Instruments Northern Region
Bring Me The Horizon - Sempiternal

No signal from second video card

I'm resurrecting an ancient machine, putting Arch on it and making it useful again.
The VGA output is flakey, not working at the highest resolution my monitor can support. And I found an old PCI video card and threw it into the machine, hoping it would be better. Trouble is, I get no signal at all from the second card. Nothing sent to the monitor at all.
Running lspci, I see both VGA cards:
00:00.0 Host bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM Controller/Host-Hub Interface (rev 01)
00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01)
00:1d.0 USB controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01)
00:1d.1 USB controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01)
00:1d.2 USB controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01)
00:1d.7 USB controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 81)
00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 01)
02:02.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
02:09.0 Multimedia audio controller: Ensoniq 5880B [AudioPCI] (rev 04)
02:0a.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 3 (rev 01)
The Intel Corporation 82845G is the one that partially works (for example I have to specify a resolution on the kernel boot line, otherwise the monitor says "invalid mode").
The Voodoo 3 sends nothing at all to the monitor. No console when booting up. I haven't found any errors in the log. Since lspci finds the card, what else do I need to do to make it work?
Thanks for any help. -Dave

Still having no luck with the video card. But some additional info...
When I run, lspci -v, I don't see "Kernel driver in use" (which I do see for my first graphics card and most of the other devices listed).
02:0a.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 3 (rev 01) (prog-if 00 [VGA controller])
Subsystem: 3Dfx Interactive, Inc. Voodoo3 3000 PCI
Flags: fast devsel, IRQ 22
Memory at e2000000 (32-bit, non-prefetchable) [size=32M]
Memory at f8000000 (32-bit, prefetchable) [size=32M]
I/O ports at 2800 [size=256]
[virtual] Expansion ROM at e0110000 [disabled] [size=64K]
Capabilities: <access denied>
However, I am loading the tdfx driver. I see these lines in dmesg...
[ 4.708446] pci 0000:02:0a.0: enabling device (0000 -> 0003)
[ 4.708487] pci 0000:02:0a.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
[ 4.708499] pci 0000:02:0a.0: setting latency timer to 64
[ 4.708823] [drm] Initialized tdfx 1.0.0 20010216 for 0000:02:0a.0 on minor 0
Not sure how to troubleshoot this any further.

How to get counter values from pci 6221 card?

Hii
I am using PCI 6221 card .. In that i am using the ctr o .. In my application i am using Linear encoder to measure the Lift movement.. so from software how to access the counter values i.e how much mm it moves...

Measure Angular Position.vi in the LabVIEW examples will be a good starting point. Adapt it to Linear Encoder by clicking on the selector below DAQmx Create Channel.vi.
You can also create a corresponding DAQmx Global Channel (or task) in MAX and then use it in your code.
Feel free to post back if you need further help.
Message Edité par JB le 10-31-2008 02:15 PM

Boot MEGA 180 from PCI Sata card

My onboard IDE controller has given up the ghost so I have purchased a PCI sata card to use a spare sata disk, the problem is I can't see any way to get the 180 to boot from the PCI card. Anyone any ideas?

Yep - I disabled the PATA ports.
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Can a6614f boot from PCIe x1 card?

I've got an a6614f desktop PC. There are 4 SATA connections on the motherboard and they are all used up (2 optical drives, 2 HDDs). I've got an SSD coming and will be getting a PCIe x1 card to add more SATA ports. (PCIe x16 slot is being used by my GPU.)
Once I have the PCIe card installed, I'll have the option to plug the SSD into the card or directly to the motherboard. I've been told that the speed on the PCIe card will probably be faster than on the motherboard, so if possible I'd like to connect the SSD to the PCIe card. My question is, would the system be able to boot from a PCIe card?

crosswithyou wrote:
I've got an a6614f desktop PC. There are 4 SATA connections on the motherboard and they are all used up (2 optical drives, 2 HDDs). I've got an SSD coming and will be getting a PCIe x1 card to add more SATA ports. (PCIe x16 slot is being used by my GPU.)
Once I have the PCIe card installed, I'll have the option to plug the SSD into the card or directly to the motherboard. I've been told that the speed on the PCIe card will probably be faster than on the motherboard, so if possible I'd like to connect the SSD to the PCIe card. My question is, would the system be able to boot from a PCIe card?
Hi,
I would buy one of these PCIe cards:
http://www.ebay.com/itm/NOT-x1-PCI-Express-x2-slot-SATA-III-4-port-PCI-e-Version-2-Controller-Card-N...
Now you may connect the SSD directly to a SATA slot on the motherboard and one of the HDDs (I'm guessing that the SSD will be a boot drive) or optical drives into a slot on the PCIe card.
Dv6-7000 /Full HD/Core i5-3360M/GF 650M/Corsair 8GB/Intel 7260AC/Samsung Pro 256GB
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HP Touchpad provided by HP
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*Please, help other users with the same issue by marking your solved topics as "Accept as Solution"*

Error 50103 occurs. Reading three signals off PCI 6259 card

Error 53103 occurs in my program. Am reading off three inputs from the NI PCI 6529 card, AI3 to AI5 using the DAQ assistant. Any help please?
Attachments:
Untitled.vi ‏520 KB

You're trying to do two AI tasks on the same device at the same time. You can't do that, because the device has only one AI timing system (among other reasons). Try combining the two tasks into a single task, or chaining the error out of one task into the error in of the second task.
Joe

How would i acquire signals from a philips viridia patient monitor?

i'm looking for a simple way to acquire patient vital sign trend data
(BP, pulse, etc) from our Philips Viridia patient monitors in the ER.
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You can use a software application called MECIFView. It uses the MECIF protocol to acquire these signals from certain patient monitors (such as the Viridia). You can download a demo version at http://www.mecifview.com

Generate and acquire signals from Walkie Talkies

Hello, i am a Portuguese Student and i have some problems in a Academic Project.
The following project consists in two Walkie Talkies that are link to a USB 6009.
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Please can anyone help me in this question and send me a (vi), i would greatly appreciate.
something send me a post or email for [email protected]

Hello Lynn,
Sorry about the late response, but only today i have access again to the USB 6009 in the LAB.
In below are the graph from the input signal, the first is the graph from the Walkie Talkie (receiver) when the button from the Walkie Talkie that send the signal are not press. What we see is only noise and others frequency's.
In the other graph we can see a different graph this graph is from the Walkie Talkie (receiver) but when the button from the Walkie Talkie that send the signal are press where we can see that is a different kind of signal and the receiver are ready to receive the signal and are receiving some signal from the other walkie talkie.
First I need some help for this first steps
1- But how can I generate a signal wave and send it from the other Walkie Talkie (transmitter), I used a Basic Function Generator
2-How can I see in the Walkie Talkie (receiver) if he receive the Signal that I generate in the transmitter, The graph changes of frequency and amplitude always that I press the button of the transmitter Walkie Talkie.
3-How can I put the two signals in the same chart or graph, The main problem is like you said the USB 6009 is too low sending signals.
Sorry my English, I appreciate any help
Thanks
BTP
Attachments:
input data.png ‏33 KB
input receber.png ‏37 KB

Acquire signals from a monitor

How does one acquire the physiological signals from a medical monitor? The monitor is a non-national instruments monitor. The patient monitor records ecg, invasive blood pressure from a patient and displays this on a screen. This information is relayed to a central station. Is there a way to obtain these signals and see the ecg and blood pressure waveforms in labview and thus analyse these waveforms. Thank you

Sssantosssh wrote:
How does one acquire the physiological signals from a medical monitor? The monitor is a non-national instruments monitor. The patient monitor records ecg, invasive blood pressure from a patient and displays this on a screen. This information is relayed to a central station. Is there a way to obtain these signals and see the ecg and blood pressure waveforms in labview and thus analyse these waveforms. Thank you
Is reading the manual for this medical monitor something you are not capable of doing?

How to acquire video from PCI TV tunner card in Labview

Hello Guys,
I am a new commer in this fourm and this is my first post.
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Gondor wrote:
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First Mathscript is NOT Matlab. It is a National Instruments implementation resembling Matlab. As such it does not and can not make use of Matlab Toolboxes at all.
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Message Edited by rolfk on 04-21-2010 07:11 AM
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

How can i acquire analog signals from PXI 4472 card?

Regards
Aks
(Appreciate answers by giving KUDOS)
Hit the stars.............. sky is not the limit.

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Message Edited by Dennis Knutson on 10-28-2008 07:30 AM

Acquiring signal from PCI 1428 card

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