Time taken to read all 4 ports of USB daq 1024LS too long

[Chandana Narayan]

Hi, I am using the USB daq 1024 LS and the time taken to read all ports once is around 400+ ms. Is there any way to reduce this time for one cycle?

[DAQman]

Hello,

If you're using ulDIn to read each port, you should be able to read the four ports 25 times a second unless you have a super slow computer. The USB-1024LS is rated at 100 Hz, so four ports divided into 100 is 25. The ulDBitIn function uses the ulDIn function to read the port, so it's slower and may explain your results.

Best regards,
John