LAVA 1.0 Content

Is the (network) drive available during the night? You could try the same approach to log data on the FP (once every 15 minutes or so) Maybe your computer is set to hibernation by some group policy? Do you log the user off? (or does this happen automatically?) Ton

Hi, I am building an array (array of Refnums) using the build array function. The refnums are of different data types (like boolean typa and ring control type). Now when i wire these to the input of the build array function i can see the coercion dots. Can some one let me know how can i convert the data type to avoid this coercion? Please see the attached image (the one marked inside the RED Box) The conversion pallete do not seems to have any built in vi to perform this.

If there is enough of a shortage that there is a bottleneck in certifying non-NI CLD's or CLA's (which I don't think there is) then outsourcing the grading process to get more exams graded can be considered. But this should be considered outsourcing and not a job for an advisory board. I like advisory boards to provide feedback and guidance, but not to do manual labor. I don't think NI will or should find more graders just to get more NI employees certified. I don't see the big need to have tons of certified NI employees.

QUOTE (jgcode @ Aug 19 2008, 06:01 PM) ni.com was down earlier due to a network failure. You can download the LV 8.6 modules from the Drivers and Updates portion of the NI support site. Here's the RT Download.

QUOTE (Michael_Aivaliotis @ Aug 19 2008, 08:16 PM) We go Off-Topic major, but an job-ad that says: Dynamic time hours Travels a lot For me I can't do such jobs anymore, my wife is working nights and finding a kindergarten that is open at evenings is not something I like to do. Now let's go back on topic, questions about your home situation can be appropriate. How would you feel about the following question: 'Do you have a driver's license?' Ton

QUOTE (Ton @ Aug 19 2008, 01:11 PM) Again, I think this is a personal question and should not be asked. If an interviewer wants to call a reference, they should, but they should not ask the candidate what the reference would say about them. QUOTE (Ton @ Aug 19 2008, 01:11 PM) This are items that are relevant to a job. For instance I got the question today if I could enter a support team for our company. This includes traveling to other countries for two weeks, heavy night work. Someone that is married and has children is not very suitable for such a job. It are question regarding your fitness for such jobs. You are correct, but if this is the case then you should ask the candidate what they can or cannot do, not if they are married or not. You can not assume that just because they are married they can't travel overseas for two weeks. So instead of "Are you married?", you should ask" Would you be able to travel on assignment overseas for two weeks and work extra hours at night if necessary?". Then the candidate can decide if they are willing to do the job or not, based on their personal situation.

QUOTE (eaolson @ Aug 19 2008, 07:47 PM) Hijack succeeded. In the Netherlands it's quite normal to have you marital status on your resume (including children). The question I got was 'If I call your wife what will she tell about you'. This are items that are relevant to a job. For instance I got the question today if I could enter a support team for our company. This includes traveling to other countries for two weeks, heavy night work. Someone that is married and has children is not very suitable for such a job. It are question regarding your fitness for such jobs. Ton

QUOTE (Michael_Aivaliotis @ Aug 19 2008, 07:32 PM) I never use strict type defs, unless I put them on a GUI I am going to show to my user. I have always the feeling why use a strict type def? Could you enlighten me? Ton

QUOTE (MJE @ Aug 19 2008, 07:07 PM) How do you pass around the data? Via disc or via memory. In the first case there shouldn't be a difference between C# and LabVIEW, however loading .NET items into memory sometimes takes time. Ton

QUOTE (Val Brown @ Aug 19 2008, 05:32 PM) Good idea, maybe something like 'Code development tools'? Any other namse? I am willing to filter the last few months or so for threads that should apply to such a forum. Ton

QUOTE (Ben Zimmer @ Aug 19 2008, 11:00 AM) Thanks Ben. It seems there are some other extremes as well, "I worked my Bu#@ off nights." or "I slaved for years saving evry penny to achieve my dreams." I will volutarily delete the previous question if anyone indicates as much. "Another Ben"

You'll want to use a second simple waveform (ramp up, ramp down) to scale your actual signal. So rather than varying the amplitude of the signal generator, use a constant amplitude and then scale the generated waveform by multiplying it by the ramp waveform. Here's a partial solution showing how to generate a ramp up and using it to scale your sine signal. This will ramp up continuously so you'll need to figure out how to stop the ramp and keep it level at your final amplitude and then add the ramp down for the end of your signal.

QUOTE (crelf @ Aug 19 2008, 10:24 AM) Seems like I struck a nerve with that question (and I wasn't even trying). I am at a loss as to how that Q would be concidered descrimination. Could you please elaborate? Ben

QUOTE (neB @ Mar 7 2008, 03:34 PM) Michael is quoted in the Q3 Instrumentaion Newsletter, see here. Ben

One of the best Q's I have heard was; [Warning! The following question has been declared possibly offensive and readers are cautioned to read the following question at their own risk!] "How did you finance your education?" [End of possibly offensive question] It lets you probe the candidates character and how they juggled demands of their time. A question about Action Engines/LV2 Globals/Functional globals like "What is a an AE, when would you use it, and what alternatives would you concider?" will open up a lot of doors into the candidates knowledge of LV. OH, and based on the results of the "Stump the Chumps" from last year's NI-Week, if they can name more than one Express VI,.... Ben

QUOTE (electrika @ Aug 18 2008, 07:05 PM) I control multiple axis, but as already told we need to know more about your hardware / software used to help you... do you use a NI-Motion Controller? in which mode does he opperate absolute/relative contouring, position mode, or whateve? if you change the speed you could get problems with your system (it can become instable..)

QUOTE (jzoller @ Aug 13 2008, 10:23 AM) this is the best part when u end up with a insane error Most of the time, deleting the offending object and recreating it from scratch is sufficient to fix your VI and allow you to continue working. So when ever i used to encounter this problem (and the interesting thing is that this insane error is used to happen with 7 and 7.1 version and i never encountered so far with 8.2 and 8.5). i used to delete a wire branch or control or indicator one by one , save the application, rewire the deleted objects and save and run it. And it used to work fine. This used to be tedious process and as a short cut i would copy the entire block diagram in to a new vi then used to delete half of the block diagram objects, which would let me know in a faster way where this insane object is in the BD.

Multi dimensional arrays works fantastic most of the occasion. I never tried using 4D or 5D but have used 3D for generating simultaneous outputs using a AO card.

daro, and this will surly solve your problem... As a tip; always wire your error cluster even if u feel its not important.

QUOTE (maybe @ Aug 18 2008, 02:15 PM) Hi there, The attched vi works as its intended to.. I tried some error and trial method and found out that if the size of the vi (of which u would like to take the image) is scaled accordingly (manually) to fit that background properly , u will get the complete front panel image. So resize ur VI and give it a shot again.

Congratulations Tom! Ben

QUOTE (Val Brown @ Aug 18 2008, 04:10 PM) You can access all the info on the build specifications via VI-server. http://lavag.org/old_files/monthly_08_2008/post-2399-1219074050.png' target="_blank"> If you are smart you can copy the settings from one build to another (source distro's seem the most easy). Ton

QUOTE (Tom Bress @ Aug 18 2008, 07:24 AM) Congratulations Tom.

QUOTE (jgcode @ Aug 18 2008, 06:47 AM) Hopefully, certification > experience or possibly certification = experience++ This is a very good question and comes back to the root of Tom's goal for discussion. What is certification? Why should we do it? In my mind certification includes (but is not limited to): Experience - maybe this should be a more clearly states requirement for certification though it would be difficult to verify Willingness to learn, understand, and master best practices in application development (it doesn't necesarily mean that to you will use best practices in your daily work, though you should) Agreement that having and using best practices is a good idea Interest in further developing your programming and application development skills in coordination with the LV user community As several have stated, certification does not mean that you necessarily agree with the best practices taught in the LV courses and tested in the certification exams. But it does mean that you understand these specific best practices and see the value of having best practoices in your own development even if they differ from the ones used in the certification process.

QUOTE (Tom Bress @ Aug 15 2008, 10:57 AM) My comment was meant to only address the issue of NI engineers (applications engineers, systems engineers, R&D) getting certified. In my mind having an NI background will give a potential employee a differentiation factor compared to their competition, but like certification, it should not be a free pass to gainful employment. My point was to illustrate that NI was not keeping employees from getting certified due to this concern. In general I think certification does have value, but the purpose is not necessarily to make it easier for people to get a job. Though the purpose does include for employers to better identify qualified job candidates. To me LV certification is intended for developers of applications using LabVIEW, which in fact almost every NI employee does not do. So the certification is much more suited for system integrators, not for NI engineers developing and supporting LabVIEW. My comments are meant to address the CLAD, CLD, CLA certification and not CPI. I don't know much about the CPI process at this time. That being said there is value for NI employees to get certified, which is being addressed at this time. QUOTE (jgcode @ Aug 15 2008, 06:34 PM) Why not with all else being equal? If you are applying for a pure full-time LV programming position and you have Joe A and Joe B with equal Academic Quals for the job. The hirer's are familiar with NI products and knoq that certs aren't given out on weeties packets. Joe A has his CLA & CPI (and additionally certs for DAQ, RT, CRIO, & MV courses). Joe B with no LV certification - who are you going to lean towards off the bat? In fact, its quite possible Joe B's CV could be scraped up front. If the hirer's have no idea about LV certs then yes, its probably a waste of time. But IMO its no different to a uni degree. Its just a piece of paper, but its what the piece can do - to get your foot in the door thats important. Given the above example, if Joe A got the job because he looked more impressive on paper, then the cert is worth it. In my mind if someone has anything higher than a CLAD, they will be able to talk about their actual work experience. I don't expect anyone without actual work experience to have a CLD or higher and the issue of "equal Academic Quals for the job" with or without certs is not likely to happen. If the hiring engineer is at all familiar with LabVIEW they will be able to determine which of two candidiates with or without certification is more qualified due to their actual work experience and performance. However, like you said, employers may make certification a simple requirement to get an interview in the first place, so having the certification is still important. QUOTE (jgcode @ Aug 16 2008, 01:38 PM) E.g. graduate entry level job..straight out of uni, no experience, all candiates have are certs/academic quals. The thing they are going to look at for sure is what you have achieved on paper (grades etc...) and references (as you have no experience). It gonna depend on the situation. If they have anything better than a CLAD, they will have some experience developing applications (even small ones) with LabVIEW and can talk about it in an interview. Even for a CLAD they must have some experience working with LV otherwise they would not have bothered to learn it and get the CLAD. Experience with LV does not have to mean being a paid employee of a system integrator.