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About alecjcook

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    Brentwood (London, UK)

LabVIEW Information

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    LabVIEW 2015
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  1. Thanks. For anyone else, here is a tutorial: https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019KlxSAE&l=en-GB it is 64 bit specific. if your OS is 32 bit, change WOW64 to System32
  2. Hi, OK, so I have 2 PCs. 1. is a PXI system and 2. is a normal PC. They both have LabVIEW 2017 Dev on them but no "LabVIEW Datalogging and Supervisory Control Module". On System 1 I have created a network shared variable in the project. I can create a shared variable on one, that seems to be published, but when looking system 2 I see it is not published. The Distributed System Manager on system 1 is populated, but on system 2 is empty. System 2 can see System 1 (through the dist. sys. manager) but there are no variables to be seen. Any ideas? Many thanks, Alec
  3. The NI-RSFA-Bluetooth Analysis soft front panel has a function in it called "Auto Trigger". The Examples of how to use the bluetooth (as shown in my below examples) set the "Ref Power Edge" if the auto trigger is set to false, or "Un Set" the reference trigger. I would like an "Auto Trigger Level" function. It is my beleif that National Instruments do not provide an example of this. Does anyone have any idea how I would even begin to make an Auto Trigger Level VI for the Bluetooth analysis toolkit. Many thanks, Alec
  4. Hi, I have a whole chain of Sub VIs. Is there any automated way I can check to see if everything in the chain is re-entrant? Cheers, Alec
  5. Hi. I have a vi I am calling time and time again. Sometimes I call the VI its self and sometimes I call a VI which loads a clone instance by reference of the vi. I need a single storage point for this vi, no matter where it is, how maybe threads deep it has got its self, I need a central repository for its data. Can I just use a normal vi as a Functional Global Variable, or do I run the risk of cloning the FGV, and therefor the data inside it? Do I need a single vi, that I call from disk once and talk to it by its queue, (and assign the queue a fixed name) Many thanks, Alec
  6. Hi. Please see the below examples. Neither Ex 1 or Ex 2 increace the number in Output in "Output" or "Numeric 2" as I expect. Could someone explain to me why this is please. I was under the beleif that a DVR refered to the memory in which the data is held, so surely the examples I have given should work?? http://zone.ni.com/reference/en-XX/help/371361J-01/lvconcepts/external_data_val_ref/ Many thanks, Alec
  7. Hello, Please can someone help me. I have been battling for days with LabVIEW SMPT. I am attempting to configure labview to send an email from my gmail account. I have allowed less secure apps through my gmail https://www.google.com/settings/u/0/security/lesssecureapps I have tried fort 465 and 25 and 587. 465 gives me an error 56 and port 487 gives me a 363500 (failed to connect to specified hostname). Does anyone have this working who could guide me please? Many thanks, Alec
  8. A String control has a property Text.ScrollPos. This defines how far up or down the window is scrolled. I would like the String Control to return me a number that allows me to determine whether or not the window is scrolled as far down as it can be or not. Does such a property exist? Many thanks, Alec
  9. Hi, I have a .dll running in LabVIEW, the developer of the .dll is writing all of the data to the standard output (_stdout). I need to be able to read this output with LabVIEW. I have already been pointed to an old post in the NI Forums: http://forums.ni.com/t5/LabVIEW/Redirecting-stdout-stderr-stdin-to-from-LabVIEW-in-dlls/td-p/1768662 This post is old, and the solution does not work in anything about LabVIEW 2012 (and I need it to work in 2015) Does anyone know how to display/read the _stdout from a .dll in LabVIEW. Cheers, Alec
  10. I think your grasp on LabVIEW architecture is a little loose my friend. Why don't you run this program and take a look at the CPU load for yourself.
  11. Say I have a UI that consists of two units: 1, an Input String (System) 2, a Boolean OK button (System) I run a Event Structure and a queue based producer consumer loop, create an event for "Value Change" on the String and another for "Value Change" on the Boolean. If I place the cursor (Key focus) on the string and type something, when I have finished typing a (while key focus is still held by the string) press on the Boolean, then the Value Change for the string will be processed, but the Boolean Press event will be missed. Does anyone know how to get around this? (I have attached an example to show you what i mean. Type something into the text box and press the button immediately after) Many thanks, Alec
  12. nono, i DO want to reference a pool of clones. I want to open 3 clones of the same VI, and be able to run them independently, and store the references so I know which clone instance i'm talking to
  13. OK, so The answer is 3,6,9. Well done crelf and Ryan! I would LIKE the answer to be "3,3,3". So the real question is... What do I have to do to this VI to achieve this?
  14. Hi LabVIEW experts. I have a question, and I'm going to pose it as a quiz. I have 2 VIs, a main one and a sub on (see attached picture) When I run the main VI, it calls the sub VI (which is essentially a functional global variable). The question is. What is the value of the indicator "Array" after execution? Cheers, Alec
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