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ASTDan

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Everything posted by ASTDan

  1. Thanks It looks like it installs with the Vision Development module I just had the drivers installed. Thanks again! Dan
  2. Hello I am trying to find a vi called IMAQ Quantify.vi. It should be in a .llb called Analyize in the vision folder. I currently don't have this .llb. Does anyone know what package these vi's are included in? Thanks Dan
  3. Here is the response I received from NI http://forums.ni.com/ni/board/message?boar...essage.id=26793
  4. OK Stupid question. I entered that part number on NI's website and came up with nothing. Where do I find that. Thanks Dan
  5. Hello, I have a question/comment. I am trying to find a master .pdf document for DAQmx. The request I had was for a 300+ page manual for DAQmx. Does something like that exist? I found a "getting started with DAQ" http://zone.ni.com/devzone/cda/tut/p/id/5434 on NI's website. It looked cool. Is there 1 pdf manual that has everything, or is the documentation all in help files or on line? My comment is where is NI headed in regards to documentation? I feel NI's documentation in general is good but could be better. Sometimes when reseaching something I wish they had more detail. Are they moving a
  6. On the subject of professor wisecracks. Here are the 3 fundamental laws of engineering 1. If it don't work plug it in 2. If it still don't work turn it on 3. Sh*t flows downhill
  7. Hello, That is how the power supply should work. I have worked with those before. If the current is 0 the voltage will be 0 Ohms law. The power supply can control to Voltage or current. If you want to control to voltage set the current to higher than you need, and set the voltage. The power supply will output the voltage you want. The current will be a function of whatever load you have on the power supply. If you have 0 resistance on the powe supply you will have infinite current. If you have infinite resistance on the power supply you will have 0 current. Hope that helps Dan
  8. You might want to take a look at Open G's varient configuraiton files. www.openg.org It takes Clusters or arrays and saves them as .ini files. I would also sugest taking a look at the .tdm file fromat from NI. It uses an XML header with a binary file. Hope this helps Dan
  9. I have a supid question. I have created some control templates of my common control clusters I use as type defs. This is really cool! This should save me time and I am a happy labview programmer. However how do I load these now? When I go to File\New all my vi templates are there, but not my control templates. How do I load in my custom control templates? Is saving them in the template directory a good idea? What am I to do? Thanks Dan
  10. Hello, I don't think RS232 supports multiple instruments on the same port. I do know RS 485 does. I have never tried it though. I would also recomend RS485 for longer distances and/or is you are putting this in a noisy environment. RS485 is a differential protocal and RS232 is single ended. I have used these RS485 Hubs with good sucess. http://sewelldirect.com/quatech-usb-rs-422-485-surge-4.asp Dan
  11. ASTDan

    Motion Control

    The applications I have been looking at have been very simple. I have had a couple that I just needed to control a 2 axis stage using a servo motor. I just needed to go to a position. Path was not a factor. I had another application where they needed to control Torque which was just controlling the current. Again very simple applicaiton. The drive had digital inputs for home and out of limit contitions. So from what I gather simple motion applicaitons can be handled with an intelligent drive. Where as a complex motion you are better off with the NI Motion control card. Is that a fair
  12. ASTDan

    Motion Control

    Hello, I have been quoting on a motion control job and I wanted to ask a question regarding NI's Motion control boards. What are the pro's/con's of using a NI Motion control boad over an intelligent motor drive. An intelligent motor drive you can send commands via the serial port or control the position,velocity,or torque using an analog output. The drives I have seen you can set the PID parameters and also store moves to be called using RS232. So with all that functionality what does using a NI motion board get you? Thanks Dan
  13. You might want to look at the I/O Name filtering. Right click on your control and select I/O Name filtering. Make sure the type of resourse you want to see is not being filtered out. Dan
  14. Hello, This is the timer function I have developed for my programs. I hope this solves your problem! Dan
  15. Hello, Is your read code in a while loop? If it is what is the udate rate of the while loop? Dan
  16. I don't know if this is your problem, but when I upgraded to the new Aplication builder the default file path puts it into "Documents and Settings", which was different from what I was use to in eailer versions of application builder. Make sure your desination file path is the "Application desdination directory" is a path you want. Hope that helps Dan
  17. Wow thanks, Tango Desktop is very cool. Exactly what I was looking for! I didn't know you could drag bmp into subVI icons. Thanks for that tip too!! Dan
  18. Hello, I have a question/comment about icons. NI's Icon Art glossary is a cool concept but I would like a greater selection of icons. Does anyone know of an icon glossary similar to NI's but with more selection? http://www.ni.com/devzone/idnet/library/ic...rt_glossary.htm Thanks Dan
  19. Hello, It would help if you posted your code so it could be reviewed. If you want to see more than 1 element in an array you can expand the array. Mover your cursor to the edge of the array. Blue dots should outline it. Then Click and drag in either the horizontal or vertical direction. I have attached a .vi that illustrates this. Does that answer your question? Dan
  20. Hello, This is another way of access to the keyboard using the event structure. Unfortantly your VI needs to be in focus, but I thought it might be of interest. You basicly use the Key down event and wire the input terminal of a case statement to the "char" termainal. The "char" terminal is the ASCII character that was pressed in the Key down event. I used a Type cast to convert the ASCII number to a string. Dan
  21. ASTDan

    J1850 CAN

    Hello, I have gotten some feedback on this issue on the NI Developer zone and wanted to post it here in case anyone is interested. It looks like J1850 is not supported by the NI CAN cards. http://forums.ni.com/ni/board/message?boar...0&jump=true
  22. Hello Martin, I amplfied the signal that you used the filter on by a factor of 10 and got the Peak detector to work. You would have to multiply by .10 to get the data back to the format you need. My theory is since the data values you are using are very small the peak algorithim doesn't like it. Does anyone else have a better solution or can explain why this occurs. Interesting problem. Dan
  23. Hello, This is how I save and retreive Cluster values from files. What is great about this method is I can add or delete values from my clusters and it doesn't mess up the files.
  24. ASTDan

    J1850 CAN

    Hello, Does anyone know if the NI CAN cards support the J1850 Protocal? Is there some white paper or data sheet that tells me what protocals the NI CAN cards can and can't support? Is this a stupid question? Thanks Dan
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