PXI 5401 & 4072

I have a PXI1050 Chassis, Labview 7, and the following versions of the
software:
Labview: 7.1
NI-FGen: 2.4.1
NI-DMM: 2.1.0
..and some other ones
I am connecting to the Chassis' 8175 controller remotely through a
network cable a from a laptop
For some reason, when I try to add the PXI-5401 unit as a device, it
always fails the self tests. Also, when I try to Add the 4072, it just
isn't even recognized (i.e. it doesnt even show it as a device in the
chassis). I have several other modules (4060, 6704, and 4021) which I
have been able to add successfully.
Any ideas? Please let me know if I should clarify anything. Thanks!

Sorry for the confusion - I have labview 7.1

Similar Messages

How can I synchronize a PXI 5401 and PXI 5124?

I want the PXI 5124 to start aquisition exactly when PXI 5401 starts generation. I want both this devices to trigger al the same time.
My problem is that PXI 5124 triggers the same times that the number of cicles of my arbitrary function generated by PXI 5401.

A solution that you can adapt to your devices is given in the following link:
http://forums.ni.com/ni/board/message?board.id=150&message.id=1072&requireLogin=False
try to follow the instructions fixing the parameters and the functions of your device
and if you need something else
let me know
Erwin Franz R.

My PXI-5401 was just calibrated, but Vpp is off 17%

Hi,
Using the FGEN-SFP software I specified a 4MHz 500mVp-p sine wave and set up the load impedance as >1M. When I scope directly on the output, I get a 582mVp-p signal. I tried this on another station to confirm and get a 542mVp-p signal. The scope is a LeCroy LC534A 1GHz model.
The spec on the device is +/-0.1dB which works out to 1.16%, or 494 to 506mVp-p at 0 offset.
This indicates a problem with the calibration to me. Is this a fair assessment? My setup is as simple as possible, do you see any error in my methodology?
Thanks.

Hi, bmaxton.
This issue may be associated with the cable that you are using. Try using a different cable. It is also possible that the PXI-5401 and/or scopes need to be re-calibrated. Confirm that the scopes are calibrated correctly by applying a known voltage.
What is your operating temperature? This could also affect the accuracy of your reading.
I hope you're having a great day!
Regards,
Sara Lewandroski
Applications Engineer | National Instruments
http://www.ni.com/support

I use a PXI-5401 function gen

erator. I try to pilote it with TestStantd. I think i can use one of the DLL of the driver and call DLL function diretly from TestStand. In fact with "nifgen_32.dll", the function "niFgen_IviInit" fail with error : "0xBFFF000E" (-107387346). How can i do ?
(my hardware is good, i can drive the genator using LabWindows CVI)

erator. I try to pilote it with TestStantd. I think i can use one of the DLL of the driver and call DLL function diretly from TestStand. In fact with "nifgen_32.dll", the function "niFgen_IviInit" fail with error : "0xBFFF000E" (-107387346). How can i do ?Calling a DLL function from TestStand should be no different than calling that same function from within any other programming environment. The particular error you are seeing is defined in LabVIEW and CVI as shown below:
Warning -1073807346 occurred at an unidentified location.
Possible reasons:
VISA: (Hex 0xBFFF000E) The given session or object reference is invalid.
You might try and perform an Ivi Close function first. If you have initialized an instrument session and have not closed that session and you try and initialize that session again you will get a similar error. Also make sure you have all of your logical names and virtual instrument names assigned properly within MAX. I am also assuming that you are calling these DLLs using the Flex DLL Adapter? Since
these DLLs were not written for use with the CVI adapter function prototype. This problem sounds more like an instrument configuration/communication issue rather than a TestStand issue, however I hope this helps.
Richard McDonell
Applications Engineer
National Instruments
www.ni.com/ask

PXI-5402 IVI in TestStand 4.2 returned "niFgen_InitWithOptions" Resource not found

Hi, i'm very new in TestStand.
I hope someone could help me.
I have a complete Sequence in which an ivi should initiate a PXI-5402.
(It's an old sequence i inherited. It's now my job to get it working again).
We have another System with an PXI-5401 (appears in MAX as Traditional-DAQ) which works fine with this Sequence.
I created a new Sequence to simplify troubleshooting with just the "IVI Fgen" step.
When in click on "Validate" and uncheck "Simulate" and hit "Init" i get:
niFgen_InitWithOptions returned an error: -1073807343 (0xbfff0011). Insufficient location information or the requested device or resource is not present in the system. If the resource descriptor is an IVI name, it must match the entry in the IVI Configuration Store in a case sensitive manner.
Source: TSIviStepTypes [Error Code: -31619]
In NI-Spy i get following Error
> Status: 0xBFFF0011 (VI_ERROR_RSRC_NFOUND)
I think i have configured everything correct. Please see attached Screenshot.
I tried different IVI-Logical Names...
To eliminate this as root cause, i reference direct the Driver-Session which is displayed correctly on the iviConfiguration.
Thanks in advance
Solved!
Go to Solution.
Attachments:
ivifgen-teststand.jpg ‏482 KB

Ok, i got it ...
It's the well known problem with DAQmx-Configuration within MAX.
Described under:
http://digital.ni.com/public.nsf/allkb/22CF7E6B27B6995B86256DDB0058F39B
I had to link Logical-Name with DAQmx-Device instead of PXI-Device.
Thanks anyway.

PXI-2527 and 4072 Handshaking?

Hello All,
I am trying to get 4-wire resistance readings using a PXI-2527 with a 2627 terminal block, the DMM is PXI-4072. When running the attached VI, all I see is a quick flash on the waveform graph of two readings then it disappears. I hear a clicking out of the PXI that I am using as it scans each channel. What I am trying to do is run 4 wires to a connector (10 total) and keep log of resistance readings from each connector over the course of the test.
Any help will be appreciated.
Thanks,
Gus
Attachments:
DMM Handshaking 4-Wire Resistance.vi ‏83 KB

Gus
I'm running the VI with no hitch, using simulated devices. So, I'm inclined to think that the code is properly written. What's your setup look like? Can you describe the connections you've made on each device -- what is plugged into each terminal?
Kyle B | Product Support Engineer | ni.com/support

How to wire up and use 256 points at a time on the PXI-2532

I have a PXI chassis with a PXI-2532 512-Crosspoint Matrix Switch Module, a TB-2640 connected to it, and a PXI-4072 FlexDMM and LCR meter.
I am trying to use the DMM to make measurements of something connected to the switch matrix. What I can't seem to figure out, is since the matrix is a 1 wire 4x128 matrix, how do you connect 256 points when there are only 128 conductors in the ribbon cables that attach to the 2640? There are 2 banks of 8, each with 16-pins, on the TB-2640, that seem to be wired internally together. I would like to utilize 256 points in the 512 matrix at a time, and currently I have the DMM hooked up to r0 and r1 to take the measurements. How would I hook up r2 and r3, in the same matrix?
If you are really confused I can explain further, but I haven't found anything that shows how you would actually connect 256 wires to the 2532, when there are only 128 columns. Any information helps.
Thank you.

Since the matrix is a 4x128, there are 4 rows and 128 columns to which you can connect devices under test (DUTs). You can not connect 256 different DUTs because there are not 256 connections. The points refer to the switches inside the card rather than the actual signals.
Here's a bit more info:
http://www.ni.com/white-paper/4453/en#toc3
Also I would post future switch questions here:
http://forums.ni.com/t5/Switch-Hardware-and-Software/bd-p/320
I hope this helps,
Eric E.

PXI-2570 switch capacitance

I am generating a 5V peak, 400 kHz signal from an ARB (NI 5401) and inputting it into an amplfier with a gain of about 2, current draw around 400mA and an input voltage of 13V. I am taking the output of that amplifier and going straight into the PXI-2570 relay switches. From NO-1 and NO-2 I run the cable directly to DUT and get a ~2.5V peak-peak signal in which i should be getting a 10V peak-peak signal. If I take the output of the amplifier and without putting it through the relays I run it directly to the DUT i get the 10V peak-peak.
My Question is why when i generate the 5V peak, 400 kHz signal and run it through the PXI-2570 and attach to the DUT do I see the large decrease in peak to peak voltage? Is there some internal capacitance of the relays that would be causing such a drop? The spec for PXI-2570 seems to be able to handle a 400 kHz signal?

Murphyky,
There’s one more test I’d like you to do with your setup. Connect the signal from your amplifier, through the switch (modeled as 1 Ohm resistors), and then to a large load (not connected to your DUT). If the signal shows up without attenuation, then we can confirm that the switch itself is working correctly.
Switches have a resistance listed in the specifications manual. It is small, but it should still be considered in your design. You’ve basically built a voltage divider with your circuit.
A colleague of mine simulated your DUT in our Multisim circuit design software to see if we could determine the exact source of the signal attenuation in your DUT. What sort of load are the two transformers driving? We found that we could get a wide range of voltages across the DUT just by altering the load attached to the transformers. See the images I’ve attached for reference:
With the transformers driving 2 Megaohm loads:
With one load reduced to 100 Ohms:
Do you know the specifications of the amplifier that you're using? Is it possible that it can't source the power required to drive the DUT.
Let me know how the test with the switch goes. If it passes, there is some other limitation in the circuit that is causing the signal attenuation.
Good luck with everything.
Regards,
Jared R.
Precision DC Product Support Engineer
National Instruments

Hybrid PXI instruments

Of the instruments listed below are there any that have hybrid PXI/SCXI version like the PXI-6289 (779639-01 and 779123-01)?
PXI-4072
PXI-5122
PXI-2567
PXI-8430/16
thanks,
darrow

I found the answer. The information is fragmented onto several documents/kb articles. On the chassis manual it tells you can use a PXI DAQ card to control the SCXI part, then just by chance you might find a kb that (that address only chassis 1010/1011 so it really adds to the confusion when you look for controlling chassis 1050) it tells you can use any PXI M, E, etc which in turn send you to another Kb where you discover the production date when they stopped making cards with full length connectors which in turn links you to another kb that gives a list of cards that you can still request with the full length connector.
I guess a few things need to be updated on your website/documentation, if I might suggest:
The hybrid chassis manuals need an update to 2013 status of things, possibly including all infos about which cards can really control the SCXI through the backplane or at least a link to the kb.
The pictures of all PXI cards on your website needs to be updated to show the new connector, especially when you have an article about the SCXI control capabilities that shows the different connectors PXI Hybrid PXIe and Full Lenght connector and then you go to PXI DAQ cards product page and it nicely show you the card with a full length connector. (i.e. see the 6211 picture here http://sine.ni.com/nips/cds/view/p/lang/en/nid/201614 or the 6225 here http://sine.ni.com/nips/cds/view/p/lang/en/nid/201614).

Labview 8.0, pxi-1033

Hola estoy armando una estacion de trabajo con Labview 8.0 y un PXI-1033 el cual contiene un LCR (pxi-4072) una DAQ (pxi-6225), una Matrix 4x128(PXI-2532), todo ello en windows 7.
La cuestion es que en LAbview no veo ningun instrumento de los que tengo instalados, es decir no encuentro las funciones para poder accesar a el hardware.
Por el contrario en Measurement & Automation estan todos perfectamente instalados y utilizables por medio del TEST PANELS.
Les agradezco de antemanno su ayuda.
Gracias

Buen día!
LabVIEW 8.0 no está soportado por Windows 7, es probable que por eso no puedas ver tus instrumentos en LabVIEW pero sí en MAX. En la siguiente liga podrás encontrar la compatibilidad entre las versiones de LabVIEW y Windows.
http://digital.ni.com/public.nsf/allkb/B972242574D4BB99862575A7007520CB?OpenDocument
Espero que te sirva!!
Saludos,
Anuar Rojas
Anuar R.
National Instruments México y Latinoamérica
Ingeniería de Aplicaciones
www.ni.com/soporte

5401 Amplitude description error?

I am controlling the 5401 PXI Fgen through Delphi and noticed that the documentation for the 5401 function call ConfigureStandardWaveform located in the help file calls for a peak to peak voltage. I am sure that it is actually peak voltage. The NI soft panel also shows the setting to be peak to peak, but measurements (rms) show that it is only peak voltage. Is this a known error in the documentation and the soft panel?

ScotH,
The load impedance and output impedance are separate settings, but both can be manipulated in software. If you are using LabVIEW, you would use a NI-FGEN Property Node. To select the load impedance property, click on the lower white box of the property node and go to Output Attributes » Load Impedance. You can specify your load impedance there and the board will compensate appropriately (like you mentioned in the SFP). If you are using C or CVI, use the "niFgen_SetAttributeViReal64" function to set the "NIFGEN_ATTR_LOAD_IMPEDANCE" attribute to your load impedance.
The output impedance property/attribute just switches between the available output impedances, it does not compensate for load impedance.
Ross C

Continuity testing and NI 4072 DMM

I am trying to create a continuity test which looks for opens and shorts and I am looking for advice to try and speed things up, if possible.
The DMM I am using is a NI 4072 and I am also using a PXI 128x2 Matrix Module from Pickeringtest to do the switching between test points.
Now I know the pcb board I am testing does not have 128 test points but for testing my code I thought I would do it all anyway. Running my test takes 7 minutes!
Now lets say for arguments sake that I only had 64 test points which is probably not far from the truth, that is like 3 - 3.5 minuts.
Questions,
For the setup I have, does this time sound about right and it is infact hardware limitation?
Or
Is there someting I can do/change etc to speed this up.
I have the DMM set like this
AutoZero is set to ON
Power Line Frequency is set to 50
DMM is set to AutoRange
Measurement type is Resistance
Resolution is 6.5 Digits
the code is written in c# .Net but its straight forward in what I am doing.
                       for (int i = 1; i < 127; i++)
                            for (int j = i + 1; j < 128; j++)
                                // Set IO
                                Controller.IO.SetCrossPoint(i, 1);
                                Controller.IO.SetCrossPoint(j, 2);
                                var reading = dmm.Measurement.Read();
                                // Reset IO
                                Controller.IO.ReSetCrossPoint(i, 1);
                                Controller.IO.ReSetCrossPoint(j, 2);
Basically I am opening a connecion to 2 test points, taking a reading, closing the 2 test points and repeating.
I understand that the speed in which the Matrix module operates can affect this, the DMM resolution and the range but we have a 10 year old ATE that seems to be able to do a continuity test in a second. I questioned this so I started removing pins from the bed of nails and hey ho it found open circuits.

Have you done any profiling to determine where the time is being spent (DMM vs Switch)?
You are configuring your DMM for a very high precision measurement (6.5 digits) in which you have no idea of the range (Auto-Range). First one means the measurement is pretty slow, the second one means the DMM is going to do a first quick measurement to determine what range to use, then switch range, then do the high precision measurement.
For your needs, selecting a specific range and lowering to 3.5 digits of precision should speed things up considerably and still be a good enough measurement.
You will see an even bigger improvement in performance if you use multi-point, since the DMM doesn't need different configuration between measurements. Since you are using a Pickering switch, not one of NI's, you cannot have the two devices handshake over PXI trigger lines (that would be even faster). But you can use a software trigger to trigger the DMM after you have programmatically changed the setting on the switch.
Hope this helps!
Marcos Kirsch
Principal Software Engineer
Core Modular Instruments Software
National Instruments

Host pc thinks all PXI cards are in slot 0

Hello,
I have a RT system which I am trying to drive remotely. It is a PXI-1000B with two 6070Es, a 6602, a 5401 and a 1409. The host PC is running windows XP. I have checked and updated all the software on the RT machine. I can also download VIs to the RT machine and run them from there.
When I add a new RDA/ethernet device in MAX on the host PC, I can see the devices and their numbers fine, but I get the slot 0 error that a lot of other people seem to have had, and I can't use the cards from the host PC.
One instruction I couldn't find for XP is which directory PXISYS.ini is meant to be in for the host PC. Does anyone know any other reasons for this problem?
Thanks,
TomH.

Tom,
Make sure you have the correct PXISYS.ini file. See the link:
http://www.ni.com/support/vxi/vxi_perph.htm#pxisys
The PXISYS.ini file needs to be copied/ftp the PXI RT controller in the folder NI-RT/SYSTEM/.
Carl L
National Instruments

4072 accuracy when measuring 7uA DC

I need to understand the accuracy of 4072 card, for an error budget study.
1) when measuring 7uA DC current, please let me know the details of error stackup. not just the result, I need the calculation details for each error component.
on page 3 of attached specification sheet, bottom table, first row, it states:
DC Current* ± (ppm of reading + ppm of range)
- Range: 20 mA
- Resolution: 10 nA
- Burden Voltage (typical): <20 mV
- Noise (ppm of range rms): 20
- 2 Year (0 °C to 55 °C): 400 + 150
- Tempco/°C (0 °C to 55 °C): 8 + 1
my error calculation is as follwing (7uA DC/ temperature 40C):
- Noise (ppm of range rms): 20 * 10^-6 * 20,000uA = 0.4uA
- 2 Year (0 °C to 55 °C): 400 * 10^-6 * 7uA + 150 * 10^-6 * 20,000uA = 3.0028uA
- Tempco/°C (0 °C to 55 °C): (8 * 10^-6 * 7uA + 1 * 10^-6 * 20,000uA) * 40C = 0.80224uA
so total error = 0.4 + 3.0028 + 0.80224 = 4.20504uA @ 7uA DC
error % = 4.20504/7 = 60.072%
Is my calculation right or wrong?
2) on page 2 of the attached specification sheet, under "DC System Speeds", it says "Trigger latency ..... 2uS". Does this mean 4072 can catch the trigger condition 2uS after the event?
Say I have a step function DC current drops from 1A to 0 at T0. I set trigger as 0.5A. so 4072 will detect the event @ T0+2uS??
Thanks!!!!!!
Attachments:
NI PXI 4072 DMM Specifications.pdf ‏665 KB

Hi QWERT1 and welcome to the discussion forums.
Since the lowest range of the 4072 is 20mA, reading 7uA will prove to be a challenge and I do not doubt you will be seeing an error in the realm of 50%. Comparatively, the 4071, which has a 10uA range, would allow for much higher accuracy readings at this level.
I see that you contact National Instruments directly and seem to have closed out your service request with an Applications Engineer.
For all other viewers reading this, QWERT1 calculated the accuracy correctly except for one aspect: the tempco. The only mistake here was that this needed to be multiplied by the number of degrees difference from the last calibration temperature. QWERT1 multiplied by the temperature, 40, rather than the temperature difference from the last external or self-calibration temperature. So if the calibration temperature is 23degC and the current temperature is 25degC, then you would multiply the error by 2.
Thanks again for using the forums QWERT1!
PBear
NI RF

Poor PXI IO performance on Latitude E6410 with ExpressCard 8360

Hello,
I have a Dell Latitude E6410 with a Core-i5 M520 which is giving me very poor io performance when using an ExpressCard 8360 card to connect to a PXI Rack.
The sustained IO rate that I can get appears to be about 1/3 of that that I can get using the same ExpressCard on a Dell Latitude E6400 (with a Core2Duo processor).
I am using the A05 bios (latest at time of writing) on the E6410.
Wade.

I am running Windows XP (32 bit) sp3 in both cases.
The E6410 has 4GByte of memory fitted.
The E6400 has 2GByte of memory fitted.
I have also use the same ExpressCard 8360 via a PXIe to ExpressCard Adaptor in a Desktop machine with similar performance figures to the E6400 - i.e. much better than the E6410.
The Desktop Machine is an HP Compaq D7900 with 4GByte of memory, Core2Duo E8500 also running Windows XP sp3 (32 bit).
Also, on the Desktop, I am running NI PXI Platform Services 2.3.2 and NI-Visa runtime version 4.3.
On the E6410, I am running NI PXI Platform Services 2.5.2 and NI-Visa runtime version 4.6.
I no longer have access to the E6400 so I am not sure what sofware versions were installed. However, they are unlikely to be new than the versions installed on the E6410.
Wade.

PXI 5401 & 4072

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