Help for LabVIEW.
Project to pilote ADC-12 form picotech:
We are 2 students, and we 've a job with LabVIEW 5.0.
We have an pico ADC-12 digital converter. And We should realise an driver
for it with LabVIEW. We need some HELP how to create sub driver?
Thanks for all
You need to identify what operations you want the driver to perform (i.e.
set the gain, set the triggering and read the current value) and decide
whether you want to implement this as a single driver or if you want a
sub-VI for each task. You then need to look in the manual and find out
exactly what you want to send to the instrument and receive from it in order
to do this- what I tend to do initially is write a "shell" so I can type
things in from the manual and see the response, to make sure I understand
it. Once you know what to send and receive, then you write simple bits of
code to carry out each function.
This is obviously vague; I don't know what the instrument is or how it
connects. It sounds to me like it's a card, in which case I'd have thought
drivers wo
uld already be supplied.
Matchak wrote in message
news:[email protected]..
>
> Project to pilote ADC-12 form picotech:
>
> We are 2 students, and we 've a job with LabVIEW 5.0.
> We have an pico ADC-12 digital converter. And We should realise an driver
> for it with LabVIEW. We need some HELP how to create sub driver?
>
> Thanks for all
Similar Messages
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hi, can someone help me how can i connected my multimeter to my pc with rs232, because my computer can´t recognize the device, i mean the multimeter, is a multimeter keithley serie 2400, and i already downloaded all the drivers for labview even the VISA
Marco,
Here are some suggestions:
1) Check the manual the Keithley manual to see how to configure the RS-232.
On some models you need set Factory defaults to USER and turn on the RS-232.
Also there may be a setting for SCPI which you want on (probably on by default).
2) On your PC - open Device Manager. See if a COM port exists and is functional.
You must get this working before continuing.
You can set the COM port parameters by right clicking and selecting Properties.
(On some PCs the onboard ports can be disabled in the BIOS)
3) If step two was OK, open MAX (Measurement and Automation eXplorer).
On the left side, click on Devices and Hardware.
Click on Serial and Parallel.
Go to the COM port you found in Device Manager.
Open a VISA Test Panel.
Now I don't have one I can look at right now, so this is general idea:
Configure the COM port to match the Keithley settings (should be OK if step 2 worked)
Go to the (I think) Input Output tab (you want to send a command)
The command string input should already have a *IDN? entered, if not, type it in.
Click on the Query button to send the command and check the response.
If you get an ID string back (Company name, Model, FW Version ...) then it works.
(Disregard an error saying it did not get enough charcters back.)
I hope this helps,
steve
Help the forum when you get help. Click the "Solution?" icon on the reply that answers your
question. Give "Kudos" to replies that help. -
I need HP4280 GPIB library for LabView 6i. Help.
Hi.
I am researching about reducing insulating material's capacitance with HP 4280.
Recently I got a GPIB card, but I have no idea about it.
I need help, so far I have read the manual and etc., but I understand nothing.
Our lab has a LabView program (6i), a friend of mine said "If you have a HP4280 library, you will use it without difficulty."
So I am posting this.
If someone has a library about HP 4280 for LabView 6i, please let me get it.
Thank you.
P.s. : The CD has library for many other machines but don't have for HP 4280, the nearest library was HP 4284.I performed a quick search, but I could not find an exact driver for the HP 4280. There are some drivers on www.ni.com/idnet that are close and may work with your instrument. Just search for HP and meters. All drivers can be downloaded on our site for free.
In addition, HP seems to sell a driver that covers a range of instruments, including the 4280. Here's the link I found: http://eesof.tm.agilent.com/products/85190a_ordering.html. I would recommend contacting HP for more information.
Good luck with your application! -
Ask for help with LabView Daq and Tek VX4244 VX4101
I use NI VIO-MXI-64XE-10, Tek VX4101 and Tek VX4244 to acquire data in one
Tek 1410A VXI mainframe connected a PII 350/64M computer with MXI2
cable.these modules are used for three independent applications,the datum
are acquired and through preliminary computation, then sent to three TCP/IP
ports the computer served in real time. the burden of the system will be
very heavy because the 64XE-10 need to use up the 100K sample rate
continuously dealed by 50 channels,and the VX4244 need about 30Hz for all 16
channels.
64XE-10 is easily detected by NI software, and I can use LabView Daq
intermediate analog input VIs to acquire data in background, read 50 samples
and compute the mean for each channel,then packa
ge the 50 mean and send to
client end with 40 times a second. I found the speed is satisfactory.
As for VX4244 and VX4101,I can't use LabView Daq VIs,and the driving
functions for LabView with the product are difficult to understand, I want
to know how I can get data and send out efficiently,how to get data in
background,and how to use FDC ?
And for 64XE-10, although the speed is satisfactory, but it use much more
CPU resource, I want to use advanced analog input VIs to build the code,I
want to know where I can find examples using the advanced analog input VIs ?
Best RegardsI use NI VIO-MXI-64XE-10, Tek VX4101 and Tek VX4244 to acquire data in one
Tek 1410A VXI mainframe connected a PII 350/64M computer with MXI2
cable.these modules are used for three independent applications,the datum
are acquired and through preliminary computation, then sent to three TCP/IP
ports the computer served in real time. the burden of the system will be
very heavy because the 64XE-10 need to use up the 100K sample rate
continuously dealed by 50 channels,and the VX4244 need about 30Hz for all 16
channels.
64XE-10 is easily detected by NI software, and I can use LabView Daq
intermediate analog input VIs to acquire data in background, read 50 samples
and compute the mean for each channel,then packa
ge the 50 mean and send to
client end with 40 times a second. I found the speed is satisfactory.
As for VX4244 and VX4101,I can't use LabView Daq VIs,and the driving
functions for LabView with the product are difficult to understand, I want
to know how I can get data and send out efficiently,how to get data in
background,and how to use FDC ?
And for 64XE-10, although the speed is satisfactory, but it use much more
CPU resource, I want to use advanced analog input VIs to build the code,I
want to know where I can find examples using the advanced analog input VIs ?
Best Regards -
I need the drivers of EDR Enhanced for LabVIEW 8.6 or more, please.
Hello, I want to acquire a signal with the microDAQ-Lite of EAGLE Technology and I need the EDR Enhanced LabView Driver. The one I have is for labview 6.x or 7. Currently I am working in Labview 2010 so I am needing the drivers for this version. I have found in a webpage (http://edr-enhanced-for-labview.software.informer.com/8.5/ ) that a version developed by National Instruments for version 8.5 exists, it says it is free, but i cant find it. Does anyone knows if a newer version exist? or where can I find the latest one?? Please help.
Thanks in advance.
Alejandra NI does not develop drivers for third-party DAQ devices. Contact the vendor or use the driver you have. You can load version 6 and 7 into LabVIEW 2010.
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Third-Party Licensing and Activation Toolkit for Labview 8.5
There is any Third-Party Licensing and Activation Toolkit for Labview 8.5 as LV2010. PLS help..
Solved!
Go to Solution.I know what you are asking and in the other thread, you were told it was for 2010 only. There is some support for 2009 but not for your old version. Go with the dongle suggested or upgrade your version of LabVIEW.
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I've searched the boards, and I have not found a solution for creating
a LLB with all subVIs for LabVIEW 8.0.1. I've seen the answer to
use Save With Options. I haven't been able to locate this.
I'm not too familiar with all of LabVIEWs options, so I greatly
appreciate any help that can be offered on this.You can do Save As... and then go to Duplicate Hierarchy to new location and then under Packiging options, select custom and then check the box that says save as llb.
Yo u can also specifiy the loaction of the files in this screen.
Kenny
Kenny -
OPC Server for Labview/PXI-RT
Hi all,
can i access Labview on a PC/WinXP or a PXI/RT System with a
OPC-Client (eg.:WinCC/Siemens) like a Compact Fieldpoint over the NI
OPC Server (NationalInstruments.OPCFieldPoint). Exist a OPC-Server for
Labview/PC/PXI?
Thanks
AchimHere you can find information concerning this issus:
http://digital.ni.com/public.nsf/websearch/CC9CDD577F041786862572120061EB5A?OpenDocument
Hope this helps! -
I am looking for an "Element Catalog" for Labview
Good day. When I have used certain design programs (Agilent's
Advanced Design System, Applied Wave Research's Microwave Office) they
have a section of the user's manual that lists all of the elements
along with an explanation of the element.
I am looking for something similar for Labview. Ideally it would
list the elements that can be used in Labview along with the Express
VIs. I would also like to have an explanation of their
capabilities.
Thank you for your time and help.
MichaelYour looking for the LabVIEW 7.1 Help manual. You can either download the zip file from this link:
(and go to the VI and Function Reference chapter)
http://digital.ni.com/manuals.nsf/websearch/87DA07D4B2BFE59D8625702000773C14
Or you can interactively view the same thing online via HTML from this link:
http://zone.ni.com/reference/en-XX/help/lv/71/TOC5.htm -
Hello!
My name is Daniel. I'm from Argentina and I work in Tracnova S.A.
Tracnova is the Distributors of NI in Argentina.
I am having an issue with ActiveX development for wrapper an dll driver.
I have to read strain gage aquisition data from an USB device of MANTRACOURT (http://www.mantracourt.co.uk/products/wireless-telemetry).
The manufacturer provide an dll driver. It's shipped with example for VB6 that I have been testing and it works fine.
BUT I HAVE TO USE IT IN LABVIEW.
My first problem is that I have to provide an CALLBACK function pointer as parameter to "INITIALISE" function of the dll. Here is an excerpt from the
example that is shipped (Excerpt from a form module):
Private Sub Form_Load()
'we will only handle base station addresses of 1
iBaseAddress = 1
Caption = Caption & " [DLL v" & VERSION & "]"
CLOSEPORT
'set the callback so we can receive data provider packets
Init AddressOf CallBack ''''''----------------->>>>>>>>>>>>>>>> CALLBACK function pointer as parameter to "INITIALISE" (It defined as Init)
'Open USB interface
ok = OPENUSB
If ok <> 0 Then
ShowMessage "Cannot open USB interface!" & vbNewLine
End If
End Sub
"CallBack" function is contained within .bas. Because You can only retrieve the address to a function or sub (public or private) contained within a
Standard VB Module. There's no way around this.
Here is an excerpt from the example that is shipped (excerpt from a Standard Module):
Sub CallBack(ByRef StringPtr As Long, Length As Long)
Dim PBMsg As String, rc As Long, pEnd As Long
Dim p(128) As Byte
Dim cH As Byte
Dim tID As Long
Dim C As Integer
On Error Resume Next
CopyMemory p(0), ByVal StringPtr, Length
PBMsg = Left$(StrConv(p(), vbUnicode), Length)
'strip off the base station wrapper
PBMsg = Mid$(PBMsg, 4, Len(PBMsg) - 5)
If PBMsg <> "" Then
Debug.Print CVStr2HEX(PBMsg)
Select Case Asc(Mid$(PBMsg, 1, 1)) And &H1F
Case PT_DATA_PROVIDER
'pass data to the main form if we are not closing
If Not Closing Then MainFrm.ShowMessage "DATA_PROVIDER Data Tag=" & Replace$(CVStr2HEX(Mid$(PBMsg, 2, 2)), " ", "") & " Data=" & Decode
(Mid$(PBMsg, 5, Len(PBMsg) - 6)) & vbNewLine
End Select
End If
End Sub
Then, when an data packet arrived, the driver call to "CallBack" function instead, so I can process it and do what I need.
But I can't pass pointer to function IN LABVIEW WITH "LOAD LIBRARY FUNCTION". So I did an ActiveX in VB6 for wrapping the dll of the driver. I attached the
files tha I did. The ActiveX sends an event to labVIEW everytime that a data packet arrived. I trigger an event inside the CallBack function that it's
not working, but if outside (look inside Iniciar() function where I wrote "This is the first event", the event trigger works.)
Why is not THE CALLBACK FUNCTION TRIGGERING THE EVENT INSIDE THE LABVIEW??
I also tried to make a Win32 DLL with C + + using PostLVUserEvent, but neither worked for me. I can send the code in C + + if you want to review.
Thank you for your consideration. I look forward to hearing from you.
Best Regards
Daniel Lopez
Design Engineer
TRACNOVA SA
www.tracnova.com
Attachments:
ActiveXPropia.zip 459 KBThanks a lot nyc for your kind reply.
Yes, you are right. They have COM driver, but the event does not fire in labview. Also, this driver does not implement a COM circular buffer which means that if you delay reading and processing the data, these are lost because they are rewritten. I have been asking for support to MANTRACOURT, but after several attempts, they told me they do not provide support for labview only for VB, VBA excel, and some other more, not even C + +
National I miss to much. Nice technical support !
Please help, I need to fix this issue
Thanks a lot!
Daniel -
How to create custom help for a sub VI ?
Hello,
I was wondering, how can I make a custom help for a sub vi I made? I can't find anything on here about it...
thanks!
Solved!
Go to Solution.Hi there
Open the LabVIEW Help and read the "Documenting and Printing VIs" section.
Best regards
chris
CL(A)Dly bending G-Force with LabVIEW
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HP 54501A - Instrument Driver for LabView v.7 or v.8
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I'm looking for HP 54501A - Instrument Driver for LabView v.7 or v.8. I have NI gpib/usb controller installed, but cannot control the scope via Labveiw.
The link I found at NI web site within drivers section seems to be broken so I couldn't download it!
Please, anyone, suggest/help!The link you were given works for me. You can try it again. The given link brings you to a page where the CVI and LabVIEW drivers are listed. the direct link to the LabVIW driver is http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=E3B19B3E9455659CE034080020E748... .
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Need SPARTAN 3E board Driver for Labview FPGA 8.5 !!!!!! Thx
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Solved!
Go to Solution.Hello,
I'm looking for same (Labview FPGA 8.5 for Spartan 3E). But it isn't available on related url now. I'll be glad if someone can help to find driver.
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Convert lecroy 936x driver for Labview 6
Hello
I am using Labview 6i and I need to use labview libraries for lecroy 9362 digital oscilloscope which are wtitten for labview 7 or 8.
Can anybody help me to convert any of the above to labview 6i? Thanks.
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lc936x_lv7.zip 1980 KB
lc936x_lv8.zip 1826 KBSee this article: http://zone.ni.com/devzone/cda/tut/p/id/8387
You will need multiple versions of LabVIEW to do the conversion. Or, someone on the forum who is very helpful.
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NI-DAQmx support for labview could not be found
Hi, I am pretty new to LabView. I was using VC++ to programming for my USB-6215. Just curious how LabView works, so I try to follow the "Introduction to Taking an NI-DAQmx measurement in LabView" and configure my USB-6215 in LabView. However, when I try to gererate codes for the DAQmx task name control, an error message pop up as "Error:NI-DAQmx support for labview could not be found. Please reinstall NI-DAQmx". I did reinstall NI-DAQmx, but it doesn't help. This error occurs anyway. Any idea how it happens and the solution is highly appreciated. Thank you.
JingyuSee attached
Paul Falkenstein
Coleman Technologies Inc.
CLA, CPI, AIA-Vision
Labview 4.0- 2013, RT, Vision, FPGA
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MX picture.PNG 35 KB
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