Doubt Regarding Building VI

[sukumar]

I have build a VI that uses a DAQ assistant. The equipment has got DAQ card 6036E. There will be 4 voltage signals that come out from the DAQ card. I want to capture that and display it in 4 different graphs. For that I used the "convert from dynamic data type" and "index array" from the functions palette to split the signals and show it in different graphs. But I dont know what, I am getting the same signal in every graph. I am attaching my file with this message. Please see it and tell me where I had gone mistake. And I am using Labview 7.1 Thanks.

[AnalogKid2DigitalMan]

I don't use Express vi's, but I think you can use the Split Signals function under Express pallette. Resize it to 4 outputs, and wire each output to your graphs. No need to convert or index arrays.

[sukumar]

i do the procedure you told me to follow. but still i am getting the same thing. the 4 signals are all same. when i test the daq assistant, the 4 signals were different. but when I use with graphs, I am getting this problem. Can u pls solve this problem for me. i am attaching the new file that i have build. Thanks.

[sukumar]

i haven't received any reply from you since yesterday evening. so once iam reminding you. so, can u pls help me solve this issue. Thanks.

[Dennis_Knutson]

I am able to see different signals with the VI and they match what is seen with the DAQ Assistant test panel. What happens if you connect a graph directly to the output of the DAQ Assistant so that all 4 are displayed on the same graph?

[EdDickens]

Your DAQ Assistant is setup correctly to read four different channels and you are slpitting them correctly to the graphs. There's no configuration issues here.

Are you sure the signals connected to the four channels are different enough that you can see a difference?

Ed

[sukumar]

Reply for Dennis:

I was able to see the signals on a single graph but it would be clear if they were on different graphs so that we can measure and do analysis on them individually. can you suggest me how to acheive it? Thanks.

[sukumar]

Reply for Dickens:

I am very much sure that the 4 signals are different since we had measured it with the other software and they are dissimilar. So, I want to ask you can u tell me the solution for it. Thanks.

[Dennis_Knutson]

If the signals are dissimilar on the graph with all four displayed, the VI you have with the Split Signals will display 4 separate dissimilar signals. You don't have to do anything else.

If you don't see dissimilar signals on the 4 separate graphs and do and the one with all 4, run the VI so that you have signals on on graphs. Stope the VI and go to the Edit menu and select Make Current Values Default. Save the VI. Post that VI.

[sukumar]

I am posting the VI you asked for. The second, third and fourth graphs almost look the same. I can find it wrong because the signals are coming from the electrode and if I touch one electrode that should change only one signal but here it is changing all signals and they are randomly coming. But this is not with the software of the device. Can u pls look at it and give me a solution. Thanks.