Rear connector of the SCXI-1520 module as input?

Similar Questions

• Using the SCXI-1520 module for measurement of torque

  Hello

  I'm working on a project that requires a measument couple in real time on a speed-shaft drivetrain configuration phase.

  I have the SCXI-1520 module, and I think with a with a configuration of full-bridge strain gauge to do this.

  The problem is that it is not possible to connect to a real-time measurement, so my first solution was using some sort of wireless transmission to receive data in the SCXI-1520 module

  The Arduino + Xbee seems to be the best way to go, but at the same time, I think I might have a few problems of conditioning of the signal while transmitting data to LabVIEW through the SCXI-1520.

  Don't you think it's the best way to do it, or is there a better solution?

  Thank you!

  Hi Kenny,

  What type of operating system are you using? When you say 'Real time', do you mean look at a signal when it occurs? If you use communication networks, you will not be able to get truly control in real-time because communication networks is not deterministic, and you cannot guarantee the synchronization.

  If you try to get a signal and he discovers that you buy it, you should be able to use the Arduino and LIFA with LabVIEW. Adding the SCXI-1520 will not add any additional resolution in this circumstance.

  Best regards

  Anna L

• Calibration of the scxi-1520 and scxi-1314

  I have a SCXI-1000 chassis with the scxi-1520 module and the scxi-1314 terminal block and I was wondering how to do a calibration on it?  What I have to send back them to OR for calibration or I can send it to a local company to perform the calibration?  If I can send it to a local provider, what the procedure would be to calibrate?  According to the manual of the module scxi-1314, everything we do is check the resistance and for the scxi-1520, it performs internal calibration.  Is this correct?

  Ron

  Hi Ron,

  You can send them to OR get these calibrated, or you may have a local company. Manual calibration procedures are available herefor many of our products online. Here are the procedures of calibration of 1314and 1520.

  Other issues on the calibration should be directed to ni.com/calibration.

  Chris W

• Outref pin the SCXI-1540 module

  Hi all

  According to the manual on the rear connector of the add-on SCXI-1540 is a PIN (19) described as OUTREF.

  It connects directly on spindle AISENSE E series data acquisition cards.

  But there is no mention of this PIN in the manual.

  Is it possible to generate a voltage ref in the scxi 1540 and thus a measure of NRSE on data acquisition?

  Is there any detailed of the circuit diagrams of the module scxi-1540 so that I can see whats up with this PIN outref?

  see you soon

  Frank Greenslade

  Christchurch

  New Zealand

  Hi Frank,.

  So first of all, you can certainly use the Ref Out as your floor floating for NRSE measurement.  If we look at the considerations of field wiring tutorial, he talks about these configurations a little more away.  I have trouble understanding what you're trying to reach beyond that.

• Accuracy of measurement of the SCXI-1100 module

  Dear team,

  I'm figuring an accuracy of measurement for SCXI-1100 (http://digital.ni.com/manuals.nsf/websearch/0790D3C92CF4B16E8625665E00712865) devices.

  It is not described in the standard table, it has precision stage of entry / exit (must be added?). I can't reach a precision which is a result of precision calculator. If you have any equatuions / examples please post.

  Concerning

  Michal

  Hi Michal,

  I'm not sure I understand your question. Are you trying to calculate the accuracy of the SCXI-1100 module, but you do not have the data specification for the calculation, or you don't know how to calculate the accuracy?

  If you need performance data, you can consult the technical data sheet 1100 SCXI. If you want to calculate your accuracy of the device, I can recommend you following KB: How can I calculate absolute precision or the accuracy of the system?

  I hope that this is the info you are looking for.

  Kind regards

  D. Barna

  National Instruments

• is there a protection on the channels of the excitement of the scxi-1540 module

  Hi all

  Is there a protection integrated in the circuit of the SCXI-1540 so that if the primary winding of an LVDT short-circuit and the excitement of the 1540 will not be destroyed.

  Kind regards

  Frank Greenslade

  Christchurch

  New Zealand

  Hi Frank,.

  The SCXI-1540 module provides excitement, so the same amount of excitement is provided by the module, even if the LVDT shorts.  No additional current should come.  Hope this helps!

• entry of mV/psi for SCXI-1102 using the SCXI-1308 module?

  Is there a way to physically connect a mV/psi signal to an SCXI-1102 module, which also uses a block to connect SCXI-1308? What I've read, the terminal block can use only a signal 4-20 or 0-20 Ma, right? I don't see the pins that the terminal block plug to use for output of the pressure sensor mV.

  Thank you very much for the help!

  TQ

  Hi FMC_Pumptest,

  The 1308 Terminal is designed for the current input. You are right that you have entered for 0-20 mA and 4-20 signals my with this block.

  Kind regards

• SCXI-1520

  Hello

  I have a 6036E PCI data acquisition card. I want to use the SCXI 1520 Signal conditioner for my measurements. What are the accessories necessary for the installation of the SCXI-1520 module.

  Priyank

  Hi Priyankbit,

  You would need to have a SCXI chassis with 1349 SCXI with cable Pin E Series DAQ 68 - 68 (SH68-68-EP) to connect the SCXI-1520 and connected to the PCI-6036E. You may need to have the connection to the SCXI-1520 block to connect your sensors to the SCXI-1520.

  In detail, you can consult the SCXI page.

  http://sine.NI.com/NIPs/CDs/view/p/lang/en/NID/1604

  I hope this helps

  Kind regards

• How to replace the SCXI-1600?

  Since our IT obliges us to switch to Win7, 64-bit edition, our SCXI-1600 becomes unnecessary because there is no 64 bit driver (Sidenote: the device is still available in the online catalog without obvious by the lack of such a driver warning). in an another tread on this subject, Seth_B advise

  For example, the USB-6251 device mass termination that provides 5 x faster sampling with 7 x better accuracy, USB 2.0 transfer speeds of data transfer more reliable and is only about $300 more including the cable between the DAQ hardware and the SCXI chassis.

  I need more information - I don't understand how exactly who will replace the SCXI-1600 as a connection to the SCXI block, for me, it looks like an ordinary e/s USB device must connect directly to several types of e/s analog and digital through a CBS. What cable should I connect the chassis SCXI containing other maps, how she will turn upward in MAX - in short: I need to decide if the replacement is more trouble with respect to particular software rewriting labview and other efforts that fight OUR guys to keep the System 32 bits for this testbed.

  Hello MBohnet,

  To avoid work or acquisition of new equipment on your part then I would recommend against your IT Department to maintain 32-bit system.

  If you need to upgrade to Windows 7 64 bit then the 6251 is an option at your disposal to communicate and scanning information of you modules SCXI.

  There are steps for setting this up

  1. Remove the 1600 chassis.
  2. Fix a module SCXI-1349 in the back one of the SCXI modules. Then use an SH68-68-EPM cable (the cable is listed on the pricing for the device 6251 tab) to connect the SCXI-1349 module to the PCI-6251.
  3. Your configuration in Measurement & Automation Explorer would be alike in what concerns the addition of your device, but you will point to the 6251 as the digitizer.
  4. The quote above regarding the (5 x faster sampling rate) applies only when using the USB-6251 in parallel mode.
  5. You wouldn't have to make changes to code with switching on the material element.
  6. Also, if you are not connected to the USB take a look at the PCIe-6320 or PCIe-6341 with the SHC-68-68-EPM cable. They are less expensive than the USB-6251 housing alternatives.

  Kind regards

  Izzy O.

  Technical sales engineer

  National Instruments

  www.NI.com/support

• DELL Precision T7500 eSata connector on the rear of the machine - how to get power to the drive?

  Howdy,

  I have a DELL Precision T7500 with an eSata connector on the rear of the machine - all my existing SAS and SATA ports on the motherboard are taken and I want to connect an external SATA drive.  How to get power to the drive?

  Is there a map that I can buy.  I have PCI, PCI - X, 2 slots available on the motherboard PCI Express.

  Should I consider that meanders on a power cable 4 wires from inside the machine?

  Thanks in advance.  :)

  Greetings MakesOwnWeather,

  Thank you for your question.

  You need to use what we call a 'hard drive enclosure. What is the physical size of the hard drive external that you want to use? 2.5 inches? 3.5 inches?

  The device draws power eSATA or USB below don't ports so no need of an additional power cable. He receives only 2.5-inch disks.

  http://Accessories.Dell.com/SNA/ProductDetail.aspx?c=CA&l=en&s=DHS&CS=cadhs1&SKU=a3018200

• PCI-6052E and SCXI-1520

  Hi all

  I had problems to understand the program to someone. Could someone of you help out me?

  These programs are written in Labview 6.x and integrated in a software, which can detect the DAQ (PCI-6052E) card, a series of input modules (SCXI-1520) and then collect the data from the input modules simutanously.

  Issues related to the:

  1. how to make a menu drop-down list all the modules detected, and then the customer can choose between them? Looks like the former programmer do that with property node...

  2. now, we have a new input module (SCXI-1530). However, the software says it can only suppor SCXI-1531 and cannot detect SCXI-1530, although MAX can do. The difference between SCXI-1530 (4 channels) and SCXI-1531 (8 channels) is the number of channels. It is possible to modify the software and make it compatible with SCXI-1530?

  All ideas are appericiated.

  Thank you

  Hi oly.

  You're right, aid for SCXI Information.vi does not have the types of module for SCXI-1530/1531. The function C (SCXI_Get_Module_Info) in the Start Menu > all programs > National Instruments > NOR-DAQ > traditional NOR-DAQ function reference Help contains 48: SCXI-1531; 50: SCXI-1530.

  Brad

• multiplexing of the strain gages with the scxi-1001

  I am trying to write a MatLab program that uses the C++ functions.  I managed in the collection of data of an extensometer, but I do not understand how to configure the multiplexing.

  I use a DAQ, SCXI-1600 in a SCXI-1001 chassis with 9 input modules 8 channel universal bridge SCXI-1520.

  I know that the hardware is possible to multiplex all 9 SCXI-1520 for the acquisition of data because we did it in LabView.  I have currently no LabView on my computer.

  My question is:

  How labview use C++ functions to implement this material to record 72 straingage channels.

  That's what my code looks like:

  Clear, clc
  rate = 100
  time = 1

  If ~ libisloaded ('myni')
  DISP ('Matlab: load nicaiu.dll')
  [notfound, warnings] = loadlibrary ("C:\WINDOWS\system32\nicaiu.dll",...)
  "C:\Program NIUninstaller Instruments\Shared\CVI\include\NIDAQmx.h",...
  'alias', "myni")
  end

  cards = 1
  Chans = 8
  taskh (1) = uint32 (1);

  % This is the C++ function called from MatLab-> int32 DAQmxCreateTask ('master', taskh (1))

  [a, b, taskh (1)] = calllib ('myni', 'DAQmxCreateTask', "master", taskh (1))

  chains of % for both channels 0 through 7 on each and SCXI-1520 cards.

  taskchans = {'SC1Mod3 / ai0:7 ',' SC1Mod4 / ai0:7'};

  samples = time * rate;

  chanName = ";
  minV = - 10F-4;
  Discharge = + 10-4;
  excitV = 3;
  gageFactor = 2.09;
  iniBrdgV = 0;
  nomGageR = 350;
  poissonR = 0.3;
  wireR = 0;
  scaleName = ";

  DAQmx_Val_Strain = 10299;
  10065 = DAQmx_Val_FromCustomScale;
  DAQmx_Val_QuarterBridgeI = 10271;
  DAQmx_Val_Internal = 10200;
  DAQmx_Val_Rising = 10280;
  DAQmx_Val_FiniteSamps = 10178;
  DAQmx_Val_GroupByScanNumber = 1;

  % creation of extensometer (virtual) channel

  [c] = calllib ('myni', 'DAQmxCreateAIStrainGageChan', taskh (1), tank (taskchans (i)),...)
  chanName, minV, discharge, DAQmx_Val_Strain, DAQmx_Val_QuarterBridgeI...
  DAQmx_Val_Internal, excitV, gageFactor, iniBrdgV, nomGageR, poissonR...
  wireR, scaleName);

  % set samplerate and number of samples
  for i = 1:cards
  [a, b] = calllib ('myni', 'DAQmxCfgSampClkTiming', taskh (i), cm, rate, DAQmx_Val_Rising,...)
  DAQmx_Val_FiniteSamps, samples)
  end
   
  Disable the trigger for the start of the %
  for i = 1:cards
  [a] = calllib ('myni', 'DAQmxDisableStartTrig', taskh (i))
  end

  % create variables to read data

  readarray1 = Ones (CARDS, Samples);
  readarray1_ptr = libpointer ('doublePtr', readarray1);
  arrayLength = samples;

  sampread = 0;
  sampread_ptr = libpointer ('int32Ptr', sampread);
  void = [];
  empty_ptr = libpointer ('uint32Ptr', Empty);

  Organization and reading raw data
  strain = ones (maps * chans + 1, samples);
  t = 0:1 / rate: time-1/rate;
  Strain(1,:) = t;)

  for i = 1:cards
  [readarray1, sampread, empty] = calllib ("myni', 'DAQmxReadAnalogF64', taskh (i),-1,-1,...)
  DAQmx_Val_GroupByScanNumber, readarray1_ptr, empty_ptr, sampread_ptr, arraylength);
     
  strain (chans * i-(chans-2): chans * i + 1, :) = readarray1;)
  end

  % Stop all tasks

  for i = 1:cards
  [a] = calllib ('myni', 'DAQmxStopTask', taskh (i));
  If a == 0
  fprintf (' slaughter task %s...) OK \n ", tank (j (i)));"
  on the other
  fprintf (' start task %s...) Failed \n ", tank (j (i)));"
  end
  end

  % Clear all tasks

  for i = 1:cards
  [a] = calllib ('myni', 'DAQmxClearTask', taskh (i));
  If a == 0
  fprintf (' task claire %s...) OK \n ", tank (j (i)));"
  on the other
  fprintf (' task claire %s...) Failed \n ", tank (j (i)));"
  end
  end

  It is the General form of my code.

  I tried to do one task per channel, but I can start only one task at a time.

  I tried to use DAQmxSwitchCreateScanList and DAQmxSwitchSetTopologyAndReset.

  -> but I don't know what the name of device for the switch.

  If anyone can explane how all these SCXI-1520 multiplex LabVIEW cards that would help a lot.

  Thank you.

  OK, I found the solution to this problem.

  The SCXI-1600 multiplexes based on which channels have set you up.  I simply add all 72 channels to the taskh (1) with the function DAQmxCreateAIStrainGageChan (...) then my samples are multiplied by the number of channels, I added.

• Variation of thermal EMF of the PXI-2530 modules

  This message/question is a companion of my the most recent message in another thread.

  In addition to watching some resistance higher than expected that affected current measurements using modules PXI-2530 multiplexer 4W topology, I saw systematic variation in track-to-track blood pressure measurements. Tensions would increase gradually through the 16 channels in a configuration by measuring the voltage at the terminals a resistor 1.5 kOhm with 0.5 au crossing (75 uV). I've identified that the thermal EMF of the reed in the PXI2530 module switches is on the same order of magnitude of these measures and set out to quantify the differences EMF thermal track-to-track between my three modules.

  Test method: I have a TB-50 which is configured to mux the signals of tension for a DMM. I connected each of the four DB-50 one cable of 176 pins to this block and collected with a PXI-4071 pressure readings set to 7.5 digits precision in the range of 100 mV and > 10 GOhm impedance. For most channels, it took several minutes for the voltage stabilize - or at least appear that it was to stabilize.

  I enclose three graphs. Note that the vertical scale is the same on each.

  Data that triggered this survey was collected with MUX1, via connector P2 to voltage. The magnitude was not quite the same-probably related to the phenomenon of stabilization time, but obviously the worst group of channels three multiplexer modules.

  The three modules were all bought at the same time (about 2 years ago), but had only limited its use in the first year or more. The three now have various 'mileage' based on my use. But MUX1 clearly behaves differently two other modules. The

  I changed my test conditions to spend 0.5 au via a higher resistance to thermal EMF less important. The PXI-2530 sheets indicate that thermal EMF must be less than 50 uV. In most of my measurements, it is. But not for MUX1!

  Any thoughts?

  Thank you

  Jeff

  Hi Jeff,

  You can check that all the three modules are PXI-2530, not PXI-2530 b (while, as the PXI-2530 b parts slightly higher thermal emf)?

  Specification of emf thermal 50uV of the PXI-2530 is a typical value, is not a guarantee of spec.  See a few channels higher than the spec is not a cause for alarm, but it shows that we must take account of this in our measurement error.  Note that the industry standard for the technical measure thermal emf is to close the relay, wait a few minutes and then take a measure of tension.  For example, if you scan through a switch faster than a relay per minute or so, the thermal emf will be less predictable and stable.  A single module performs worse at these low voltages is not indicative that this module is a failure, etc. the module is fine.  Unfortunately, the reed relays have more emf thermal relay of the armature, mainly because of the many layers of metal in a Reed compared to a frame (each metal junction is a source of emf if these metals are not the same).

  Thermal EMF is proportional to the temperature, it may be interesting to note the position of the chassis of the less powerful module.  Placing hottest modules (scanners, Ara, RF, etc.) will reduce the thermal emf.

• Is - what antialiasing does not work for the scxi 1141?

  Hello

  uses a chassis PXI-1052 with a DAQ 6052E for dynamic analysis.  I use a module SCXI 1140 cascading with a filter of 1141 , SCXI and 1120 SCXI D amplifier. My goal is to achieve low noise, filtered data. I have set up my gear so that data travels in SCXI 1120D ahead in parallel with the SCXI - 1141 and in parallel with SCXI 1140. In short, I want to test if the smoothing works. I generated a sinusoidal data with a frecvency of 600 Hz rates and sample of 1024 and I got an alias of 424Hz. The filter is disable. The alias does not disappear when I activate the filter with a cut-off of 500 Hz frecvency. What's wrong. What is antialiasing working for this module? My channels is set to traditional NI-DAQ title.

  Hi Avi,

  I'm having a hard time trying to reconstruct how samples are defined and how your signal is actually routing through material.  Is the 1120D on the front of the 1141 and then the 1140 is in the slot next to those?  You said there were many things in parallel and now I'm confused.  Thanks for the clarification!

• 6361 versatile usb data acquisition does not automatically detect the SCXI chassis/accessories

  versatile usb data acquisition 6361 will detect automatically SCXI chassis and accessories?

  Hello kdCMC,

  As far as I know that the SCXI-1600 USB Module is able to auto-detect SCXI Modules.
  This is also mentioned on page 11 and 12 of the following SCXI to start document:
  http://www.NI.com/PDF/manuals/373236m.PDF

  All data (including USB-variants such as the NI USB-6361) have only a 68 pin shielded cable (IO) between the DAQ hardware and the SCXI chassis.
  This cable does not auto-detect opportunities since it basically just "transfers analog and digital signals" between SCXI chassis and DAQ hardware.

  Is there a specific document that created the confusion on this subject?