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I can't open the VI Iam using labvieew 8.5.1 sow cannot open a file newer than my version

Hi everyone. Iam making a RC-car that have to run by its own. to measure distance I was planning on using ultra sonic sensors. I just wanted to test the sensor with a quick labview program but I have hit a wall. Is it possible to send and receive a DIO on the same line on the usb-6009 DAQ? The test should be run sow I sends out only 1 high node and then waits for the high node to return sow I can calculate the distance as a results of the time delay. Sow does anybody know if it is possible to send and receive on the same channel? best Regards Jens

Thx now it works. nice and quick help. QUOTE (rpursley @ Mar 16 2009, 09:37 PM)

Hi. Iam trying to make a simple VI to count objects using Vision and a USB camera. I am getting the error: -1074396080 IMAQ Threshold Invalid image type. I have attached my front diagram, block diagram and a picture of the objects I am trying to count. Hope someon can help me. Iam still a novice / rookie sow please no flame. Thx. / Jens Poulsen

Thank you everyone for your answers. I will try to look at them after christmas and hope to solve it with.

Hi. Iam pretty new to labview, and this is my first real project using labview. I need to subtract 2 timestamp strings and get the difference between them. how do I do this? I have attach'd af screenshot of my block diagram and hope you can help me. (btw the project is to be handed in thuesday 16. dec -2008) Sow Iam hoping to get a quick answer. //Jens Poulsen