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NI Pxie-8135 HARDWARE PROBLEM

February 21, 2019, 6:14 am
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Good morning to everyone.

I have one big problem with a Pxie-8135 installed in a rack Pxi PXIe-1085.

The system is composed by Pxie-8135 and a lot of I/O boards. (PXI-2565 - PXI-6509 - PXI-6512- ecc.)

When i switch on the system start for a few seconds and after go shut down with a red blinking of the three anterior LEDS.

If i remove the Pxie-8135 the system power on correctly but unusable.

I have changed the Battery CR2032 on the board and tried to clear CMOS but the problem is not resolved.

 

Have you got some ideas?

 

Thank's a lot.

David

 

 

 

 

 

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DAQmx Read Timestamp from 6683H

February 21, 2019, 12:43 pm
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I have a PXI system with a PXIe-6683H timing reference and various DAQ cards that I would acquire data from using a `DAQmx Read` function. Is there any way for me to configure DAQmx to use the 6683H to derive the timestamps it applies to waveforms, versus getting them from systemtime? Is this even the right question to ask? I think it is, but it may just be due to my lack of understanding.

 

The OS on my controller is Windows 10, and I don't want to use the time it supplies because it can at best only be synchronized via NTP (with network indeterminism, this is not good enough for my application).

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PXI Chassis For 17 1GS/s Modules

February 21, 2019, 12:45 pm
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Quick and dumb question, because I'm too lazy to do the research myself.

 

Is there a PXI chassis capable of supporting 17 Oscilloscope modules, each with a sampling rate of 1GS/s?

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Traditional Soft Front panels vs InstrumentStudio, a comment.

February 25, 2019, 2:00 am
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After updating to version 18 drivers, the default SOft panels, icons, MAX etc Soft Panels point to InstrumentStudio.

 

That software easily consumes 50% of the CPU capacity on the older PXI controller when starting up an SMU or DC power unit. Not usable. 

 

After some searching, I see that the previous style soft panels are still installed. Didn't check them all. 

 

For PXI utility boards like DMMs, SMU, PSU, FGEN, DC power, Scope.... I hope the "traditional" lightweight soft panels will be available also in the future.

 

(I guess this is not specific PXI problem but there's no InstrumentStudio section on the forum).

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Ballard MIL-STD-1553 : how to successfuly install two 1553 boards in a PXIe-1085 chassis ? (dual card)

February 26, 2019, 3:40 am
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When I insert two cards Ballard MIL-STD-1553 in a Pxie-1085 chassis (hybrid slot number 9 and 11) , these cards are not seen by the device manager in Windows and also not seen by the BTIT32 application (card not present).

 

MIL-STD-1553 1 Channel, (Multi-Function)          784799-01          LV-222-550-000

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PXIe 8105 Rayovic long life cell

February 26, 2019, 3:37 pm
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Hi I have a PXIe 8105 controller that has a dead CMOS battery. Is there a way to replace it or a cost for repair?

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Parallel operation of PXIe-FPGAs

February 27, 2019, 3:46 am
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Dear everyone,

 

I have one question related to extension of PXIe.

This is my system which I am using now.

-        PXIe-1078 (chassis)

-        PXIe-8840 (embedded controller)

-        PXIe 7821R (Digital I/O)

-        PXI 6723 (Analog output – Digital I/O)

 

In this system, PXIe 7821R (Digital I/O) is the FPGA which the project is built and complied. However, its capacity is not enough for my current project. Therefore, is it possible for me to add one FPGA (PXIe 7821R) more? And 2 FPGAs can operate parallel for one project? 

 

Thanks and Regards

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How to determine PXI system bandwidth being used?

February 27, 2019, 3:57 am
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Hi, I have a PXI-1024 chassis with PXI-8106 controller and a selection of multi-function, counter & CAN modules.  I am considering some upgrade options, but realise that one of the limitations is the 132MB/s system bandwidth in PXI.  Is there a way i can determine how much bandwidth I am currently using, so I can see if that is causing me trouble?

The two processor cores are regularly running around 85-90% load with the RT application, and I have some timing jitter.  Would changing to the quad-core i7 PXI-8840 give me much better capability here, or do I need some more fundamental changes?

All wisdom gratefully received!

Ian

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Unable to set 1588 Ordinary Clock as the time reference in 6683H card

February 27, 2019, 4:03 am
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Hi,

 

I am trying to set 1588 Ordinary Clock as the time reference of NI-PXI 6683H but I can't.

I got an error (Error- 1074118562 occurred at niSync set time reference(1588 ordinary clock).vi)

 

Possible reasonSmiley SadHex 0xBFFA405E) The network interface associated with the device was not found. (Please go through the attachment for more details.)

 

I have installed the 1588 PCI card to my host system and 6683H in PXI chassis. I have connected ethernet between PCI 1588 card and 6683H.

card.

Please suggest me to overcome this problem. I have changed ethernet cable also.

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PXI 4130 SMU no Auxput

February 27, 2019, 11:28 pm
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PXI 4130 SMU no aux output during calibration.

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PXIe -8821 and old dell monitor

February 28, 2019, 6:51 am
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I have a PXIe 8821 connected to an old Dell monitor.  The 8821 is using the DP port to the 25 pin d sub connector on the back of the monitor.  I'm using a DP to 25 d sub connector to go from the controller to the monitor.  When I hook up the connection the monitor goes dark.  Can you use the old monitor w the dp port?  Prior to this I was using a PXIe 8101 w the dell monitor and it worked fine.( D sub 25 to DVI)

 

Thanks

 

 

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Fixed-Frequency Analog Filter

February 28, 2019, 7:24 am
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Hello,

 

The user manual for the PXIe-4302/3 states the following:

 

"To minimize the error from the ADC alias holes, the NI PXIe-4302/4303 modules feature a fixed-frequency analog filter. This analog filter removes high-frequency components in the analog signal path before they reach the ADC. This filtering addresses the possibility of high-frequency aliasing from the narrow bands that are not covered by the digital filter."

 

What is the cutoff frequency of this analog filter? Can anyone give me other details about the filter (order, active/passive)? I imagine it's a simple 2 pole passive filter, but I would really like to know the cutoff frequency.

 

Thanks,

Jacob

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How to generate PWM signal with crank signal in the HIL system?

February 28, 2019, 10:19 pm
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Hi everyone! I am dealing with a project about vehicle Hardware in the loop (HIL). When generating the PWM signal, a labview vi of PXI 7831R is used. But I do know the relationship between the crank signal and the PWM signal. Is there anybody who is familiar with vehicle HIL?

Thank you.

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MXI-Express BIOS Compatibility Software 1.5 Bricked my BIOS

March 4, 2019, 11:06 am
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I have a rack mount NI PC - RMC-8356 with a PCIe-8398 running Windows 10

I ran MXI-Express BIOS Compatibility Software 1.5

http://www.ni.com/download/mxi-express-bios-compatibility-software-1.5/3764/en/

 

After that the BIOS would not start; so, I had to remove the PCIe-8398 

Now the BIOS starts; but, I get the following message in the BIOS and Windows won't start

 

BIOS stops on the Recovery Tab with the message

   ROM Image is not loaded

   ROM Image update denied

 

How do I recover from this?

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PXIe-4464 repeatability

March 4, 2019, 12:38 pm
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Hi Everyone.

 

I saw on PXIe-4464 specifications that its gain accuracy is +/-0.03 dB

(http://www.ni.com/pdf/manuals/376165b.pdf , page 4).

I do not if I got this right, but for example, if I measure a pulse with 18 mV. As a linear gain, 0.03 dB = 10^(0.03/20) = 1,0034598. Therefore, I might measure +/-1,0034598 * 18 mV = +/- 18,0623 mV. Is that right?

 

Secondly (and more important!): Let's suppose that this 18 mV that I am measuring does not change at all. Which repeatability may I expect from the measurements with the PXIe-4464? How do I get this information from the PXIe-4464 specifications?

 

Thank you.

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PXIe-4330 Excitation Voltage Issue

March 5, 2019, 8:41 am
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Hello to NI Expert Community,

 

I'm having an issue with PXIe-4330 excitation voltage on channel 2. For some reason, my excitation voltage on this channel reads 5V even I configured it in max for 10V. Due to reduction in excitation voltage my channel reads almost doubles the actual reading. So far I've taken following actions. 

 

1. Swapped the PXIe-4330 card with new card but issue still stays.

2. Measured the excitation voltage on all channels. Only channel two's excitation voltage is 5 and all other channel's excitation voltage is 10. 

3. Made sure my wiring is fine by tightening all terminal screws in the field. 

 

Please let me know if you have any suggestions. Your guidance will be really helpful on this issue. Thanks!

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NIC7018 Win10 driver

March 6, 2019, 2:30 am
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I have not been able to locate & install the driver for NIC7018, watchdog timer, on a PXIe-8135 controller.

The package found here does not seem to be Win-10, only previous Win versions. 

 

Any alternatives? 

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GPS Timing using 6683- Antenna Status Error

March 6, 2019, 3:33 am
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I'm using 6683 card for time synchronization with GPS. Even though I have connected GPS antenna to 6683 card, each time I use test panel in NI-MAX for getting time from GPS, it says that GPS antenna is not connected. and also LED in front of card becomes RED.

I have checked all cable in antenna section and I'm sure there is no problem in wiring.

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Have any one had this kind of problem? 
what's the solution?

my system is consist of this hardware:

  1. PXIe-1062Q PXI Chassis
  2. PXIe-8135 main computer
  3. 6683 timing Card
  4. GPS Antenna with 30m Coaxial Cable (196304-30 part number)

(All from NI)

 

and also these drivers are installed:

  1. Ni-sync 18.6 (I have tried 4 version of  this driver, No one didn't help)
  2. Ni-Timesync 18.1.1

 

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how can I use PXI-6683h to build a IEEE 1588 network based peer-peer delay mechanism

March 6, 2019, 9:59 pm
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hi，everyone.I use two pxi 6683h to build a timing communication network based ieee 1588,through WireShark,I found the messages between two timing cards are    sync 、follow_up 、delay_req 、delay_resp ，this means the Default mechanism is

end-end delay mechanism,How can I turn it into a peer-peer delay mechanism?thus the messages will become  sync、Pdelay_req 、Pdelay_resp  and Pdelay_resp_Follow_up。thanks

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Can shutting down a PXI 4110 cause damage?

March 7, 2019, 2:37 am
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I have a PXI 4110 and I see a potential problem. When the outputs are disabled, they short to Common floating Ground, i.e. pin D,E. 

 

When outputs are disabled, outputs A-L-K, will be grounded and any connected capacitance would discharge through the terminals of the PXI-4110. The resistance of disabled outputs seems to be around half an ohm. An abrupt shutdown discharging a cap from the maximum 20V over 0.5 ohm would cause a significant current spike, worst scenario a 40A peak

 

Is there some protection against damage on shutdown or does one need to ramp down down the voltage before disabling outputs?

 

(I have one dead 4110 on the shelf, trying to asses how to prevent it from happening again ). 

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