Madhav

I am dealing with Invoke Node blocks

Does anyone have a tutorial on NI Test Stand (Please i m expecting sumthing other than the NI user manual). I also tried the examples that come in with the installation package, but those are sequences too does anyone of you have a powerpoint presentation or a doc which will help me in understnding a Test Stand Sequence.... i have some sequences already developed i need to understand them and modify..... but i have no knowledge abt Test Stand ... i dont understand how the data is shared between the Vis ... i dont understand from where the pop ups come up.... It would be of great help if anyone can provide me with a tutorial for Test Stand 2010.... Regards, Madhav

I have a VI (Not Developed by me) which has invoke node blocks. Now i kind of want to reverse engineer the VI to find out the location of the dll....... Basically i can just make the invoke node to point to a new location but then i cannot change the locations of dll nor do i have the authority to make any changes in the vi.. so i need to find the location where it is expecting the dll..place it at that location and make the VI work... Looking at the VI how can i find out where the dll is to be placed??? can anyone help me with it..... Regards, Madhav

i wish to access the XML get one field ( data Size ) from it and adjust the size on the UI so tat the user can enter only specified size of data....... Orelse atleast is there a way to chnage the size of array by my own (Without fetching it frm XML) according to the message selected from UI (i know the size ) but still i want to use xml to automate it

I m not developing the dll but what i want to do is pass the address of the starting location of the buffer (with all zeros) Dll is supposed to update the values at the same location and i wish to show it on screen... I cannot post the complete vi here... but basically what i want to do is pass the address of any variable or buffer.. it will be updated in dll n i have to show it back on screen how can this be achieved???

i wish to send a empty data buffer (Byte array consisting of all zeros ) i have a dll tat will update the contents of the buffer ... i wish to recieve it and show it on the front Panel.. i m using call library function node.. but the data tat i recieve at the out buffer is same as i give it as the input... Also any other pointer types give out same value tat i give at the input .. i have attached the jpg of block diagram where i have pasted the methods prototype in dll and in call lib function node... also same is the problem with one more int type.. i have declared long * xyz and i wish tat the dll should return some value in it .. but i m unsuccessful Regards, Madhav

Hi, I need to update the On screen logger in my Vi front panel to be updated from 2 location or rather multiple locations.. Basically i need to log the data that i have sent on to the port (Request) and the data tat is recieved from the port (Reports in response for the request i have made) . - Madhav.

They are all programmers... Almost all of them work on C C++ and C# I gave a thought to what i can say n have short listed the follwing topics.. Introduction Basic Loops ,shift registers Array strings cluster Bundle unbundle Timers Threads Events Property nodes Invoke Nodes Sub VIs and connectors Dialog boxex Debugging tools error handling waveforms and graphs File IO VISA Decorations Data socket Matrix Vi heirarchy Help These are the topics i m planning to say about.. Just an introduction to all of above topics.. Ultimate goal is just that the team must understand somne basics about Labview.. What say???

I need to give a Presentation adressing 20 people who are much more experienced than me but have no idea about Labview. As of me i have worked on developing a test application with Labview to access c sharp dll and test its functionality for a month now. I need to take a session give them an over view of labview and its strength.. Can anyone suggest me what cuold be the possible topics tat can be covered in the session. It would be great if anyone has some Labview presentation slides or sumthing.

Thanks a lot for the responses its been great help!!! But the i have a number of messages coming in from the port (its a read port function tat wod fill the data in the byte array ) Now u have used for loop running 4 times.. so 4 entries..Hope i have analysed it correctly.. i thought of using a while loop in place of for i m having some problems with stopping the loop.... also in the vi posted by U it will collect the data n print it in one go when the loop ends..my requirement is tat i must update log at everytime a message is recieved...

Oh sorry There was a problem attaching the file.... neways i have selected the data type of the constant (0) to be u64... but still it does not show the entire array in display.. the lenght of the data shown on front panel is dependent on the size of the constant at type cast... -Madhav

i reached quite close to my target by using the vi used... but one problem that i m not able to show the complete array in log (string indicator.) the main prob is the size of constant used during coneversion to decimal..(type cast) the size of data displayed depends on the size of type that i put i used a I64 format which is the maximum but still it is not enuogh...

i use the read port function in Dll using invoke node.. return is byte array i convert it to string concatenate with the input from shift register (prev interation data in log) and display it on string indicator in hex mode..

I need to display a application log of the data recieved onto the port..the data recieved on the port is in byte array.. so i used byte array to hex sting converter... i have selected a sting indicator with a hex display... now the problem is i m unable to add a new line feed...when i concatenate my string (in Hex ) with a new line feed constant it displays 0A (its hex equivalent of the ascii value of new line chracter) on my display....would also like to add up a timestamp.. Does any one know how i can overcome this problem.... Regards, Madhav.

my application is quite big will need to take around 5 screen shots to cover the entire Block diagram... neways as of now i have sumhow managed to generate an exe that works fine.. But i would like to know the reason y it could be happening... so that i dont make smae mistakes in future.. neways thnx...