SCXI-1160 with 'DAQmx switches Open Relays.vi' list of syntax of relay.

Similar Questions

• DAQmx and SCXI-1160 with 'DAQmx switch Open Relays.vi '.

  Hello

  I use DAQmx to pass the baton on a map of SPDT 16 SCXI-1160. When I run the 'DAQmx switch Open Relays.vi' with the entry "ch0/SC1Mod1 / ' I think the relay normally open position 'NO '. But this is not the case, the relay is in the position of the NC. Here are the steps I do a simple VI.

  1. define the topology of the 'SC1Mod1' to '16/1160-inverter.

  2. call the 'DAQmx switch Open Relays.vi' with the string "/ SC1Mod1/ch0.

  3. then I take a physical measurement, with a multimeter on the SCXI-1324 terminal block and the relay is in position "NC".

  4. If I run the "DAQmx get relay switch Position" he's back "Open"!

  Is this the good behavior, and if so can someone explain the logic behind it.

  Thanks in advance,

  Michel

  Hey Michael,

  Sorry, I didn't know that you were actually able to control the relay and you receive just the reverse logic. To answer your question, on the SCXI-1160 module, there are three connections for each channel: COM, NO pine and pine of NC code. Reset, COM is connected to the spindle of the NC. When you issue a command to OPEN channel 0, COM will stay connected to the NC pin, even if the software indicates now that the PIN is open. When you issue a command NARROW-gauge 0, COM will be now connected to pin number and not on the spindle of the NC.

  A better way to think of it, is to focus only on the relationship between COM and no. pine. When you send a BLANKET order, this connection between COM and no. will be open. When you send a CLOSE command, the connection between COM and no. will be closed. Consult this manual for a visualization of how this switch is set up: http://www.ni.com/pdf/manuals/320513b.pdf. Refer to page 2-9 and 2-14 of this manual for pinout.

  -Nathan H

• How to synchronize the start of IT and relaxation the Scan list (DAQmx Switch)

  Hello

  I want to measure samples of N to the AI0 of Council NI PXI 4461. The measurement starts on a rising edge of a digital triggering provided to the PFI0 of the same Board. The measure is configured with samples of N/2 pretrigged. So far, everything is under control...

  Using an NI PXI 2567 Board, the signal applied at the entrance the 4461 (AI0) switches between a V2 and V1 signal. I would like to synchronize the switch between the two signals with the trigger signal applied to the input of the PFI0 Governing Council 4461. In order to obtain samples of N/2 of V1 and V2 samples N/2. Synchronization of 1 to 5 ms would suffice!

  My question is how to synchronize the start of acquisition of AI pretrigged of 4461 with the switch control given by the Council of 2567?

  Thank you in advance for your help...

  PS: the configuration of the system is:

  -LabView 8.5

  -Chassis PXI-1044

  PXI-4461 on slot 2

  Module 4-slot PXI-2567

  Hi Frederic,.

  I came back to this recently and used the following examples to run the desired synchronization.

  PXI-4461: Acq & graph tension-Int Clk - dig Start & Ref .vi

  Samples per channel = 1000

  Rate (Hz) = 10000.00

  Start the trigger Source = / [name of the instrument DAQmx] / PXI_Trig0

  Onboard start = fall

  Reference Source Trigger = DAQmx Device Name] / PXI_Trig0

  Reference edge = fall

  Trigger samples = Variable (100, 500, 900)

  PXI-2567: Switch Scaning-SW Trigger.vi

  Advance the output terminal full = / [name of the instrument DAQmx] / PXI_Trig0

  Scan list = / [name of the instrument DAQmx] / ch0-> com0.

  Scan list = / [name of the instrument DAQmx] / ch1-> com1;

  Hardware configuration:

  The PXI-2567 module controls an external relay that switches between the voltage of 5 V on ch0 and ch1 0 V.

  The PXI-4461 connects to the COM of the external relay and therefore reads 5V when ch0 is connected; 0 v when ch1 is connected.

  Procedure: The above examples are used in the following procedure.

  1. run the PXI-4461 VI.  A start trigger (falling edge) is necessary to start collecting samples before firing.

  2. launch the module, PXI - 2567 VI.  When ch0 is initially (and immediately) on com0, a trigger is sent to PXI_Trig0.  The PXI-4461 will begin to acquire samples before firing.

  3. - click on the "Connect to the next" button on the front of the PXI - 2567 VI module.  This sends a trigger to entry software for the PXI-2567 module and the transitions of the scan for ch1-> com1 list.  Once the PXI-2567 module remains (debounced), advanced complete relaxation is sent on PXI_Trig0 for the PXI-4461.  The PXI-4461 will begin to acquire samples after outbreak.

  Note: Instead of the trigger of the software entry, an external input trigger can be used (e.g. PXI_Trig1).

  Results:

  > Before instant release of samples = 100

  Delay is caused by the time of actuation of external relay.

  

  > Before instant release of samples = 500

  Delay is caused by the time of actuation of external relay.

  

  > Before instant release of samples = 900

  Delay is caused by the time of actuation of external relay.

  

  I hope that the attached screws and the explanation above helps you and/or other customers who have this problem.

  Best regards

  Chad Erickson

  Switch Product Support Engineer

  NOR - USA

• time of release with daqmx

  Hello

  How can I set the time of liberation with DAQmx?

  In general, with a single DAQ hardware, the two signals are connected at the same time and the acquisition time is a function of the sampling frequency and number of samples read. For example, with a sampling rate of 1000 samples/s and 50 samples, the acquisition will be 50 msec. You then get a returned array if you wanted to watch a single signal by iteration of the while loop, it is simply a matter of indexing the specific channel to the table. You must set the mode of continuous sampling to avoid gaps and precise timing. Using two separate tasks and switching back and forth would add a lot of overhead to close/create tasks and you have little control over this period.

• Brightness problem with aspire switch 10

  Hi all

  I have a gene with a switch screen aspire 10.
  The brightness level is constantly changing. It is not dependend on the ambient light, because I turned off Adaptive brightness. (When I put a flashlight on the light sensor that does nothing).

  For example: sometimes when I switch between the metro and the desktop mode. Notable stage screens turns a bit more or less clear. It also happens when you watch movies, opening programs, almost always when the image changes.

  Does anyone know a solution to this?

  Kind regards.

  To resolve this problem, I did this.

  On the desktop, right-click. Properties of the graph. Power. I turned off the screen of the energy saving technology.

  I hope this works for you also.

  

• How is it that a computer which works very well with a direct Ethernet connection won't work with a switch, however any other computer using the same port, cable, ect, and so on, can?

  Switch issues. Help, please.

  How is it that a computer which works very well with a direct Ethernet connection won't work with a switch, however any other computer using the same port, cable, ect, and so on, can? We already checked the firewall as a question, that it was not, and now, we are puzzled.

  Well, I know that the issue is long-term... believe me, it's a long, but as they say, the devil is in the details. Anywho, the question is, my grandfather has a HP laptop, which for two years has been able to run through a Linksys switch to his router and connect its printers to his laptop. About two months ago it suddenly doesn't work like that. Now, it works fine if it plugs directly into the router/Ethernet. My uncle suggested that the switch was bad, but after testing the same port, cable and all, the switch worked well for him. ' GRAMPS really needs this answered, but someone else, it is called can not understand and now I, in turn, ask you all for what you can offer. Here are the ideas that we have already discredited.

  -Switch bad: as above, is that this particular laptop, even under identical conditions, the works of my uncle very well.
  -Bad NIC: debunked through the fact we connected to the computer directly to the router and it worked fine.
  -Bad configuration of the firewall: we have disabled the firewall (please do not notice, he wasn't the smartest idea, we already know) and even if she recorded the switch exists, the internet is always triggered when you are connected with the switch.

  Thanks in advance for any assistance that you can provide and Merry Christmas to you all.

  It would be useful to consult the results of the ipconfig/all command both when it is connected to the switch and when it is connected directly to the router.  In addition, what is the model of the switch?

  To save the manual copy and the new hits of the ipconfig/all command output-

  First connect through switch.
  Open a command prompt window (start > run > cmd > OK)
  Type the following lines in the black command prompt window and press ENTER after each line

  echo "Connected via the button" > "% UserProfile%\Desktop\ipinfo.txt".
  ipconfig/all > "% UserProfile%\Desktop\ipinfo.txt".

  Now connect directly to the router, type the following lines in the command prompt window and press ENTER after each line

  echo "Connected to the router" > "% UserProfile%\Desktop\ipinfo.txt".
  ipconfig/all > "% UserProfile%\Desktop\ipinfo.txt".
  Notepad '% UserProfile%\Desktop\ipinfo.txt '.
  output

  Copy the contents of the Notepad window in your response (if you use the laptop when it is connected directly to the router) or close the Notepad window, and then copy ipinfo.txt of the laptop to the Gramps in a USB FlashDrive you can connect to any computer allows you to answer.

  You can delete ipinfo.txt on the desktop when you are finished.

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• Problem with GS716T Switch

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  Hello Kelley,

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• DAQmx Switch vs NI Switch vs IVI

  Hello

  just had information DAQmx switch screws are recommended to use written.

  Just to be sure... If I use IVI TestStand switching, I don't have to worry about it, I do?

  See you soon

  Oli

  Don't you need not worry about this.

• Timing embedded with Daqmx on PCI-6132

  Hello

  My colleague and I are trying to make a program Labview which starts a timer when the first trigger (sensor) is struck and stop the timer when the second trigger (sensor) is reached in 2012. We currently have a program for her, but this program was not sufficiently precise. Also the current program is using the DAQ assistant, but we would like to replace with daqmx triggering. We have also tried to use the OnboardClock on the PCI-6132, but still could not do the work programme.

  Is there anyone who knows how to do this and could explain it?

  (In the attachment is the current program)

  Thanks in advance,

  Tommy van Geest

  Hello Tommy.

  You can share your current code?