07-09-2013 12:40 PM
Has anyone heard of or know why there is a 100hz limitation on the Digital Input module on this board? I would like to be able to look at a digital signal a 1 Khz as a trigger for a system. Thanks in advance!
Solved! Go to Solution.
07-09-2013 03:19 PM
I'm checking with the experts, but the message indicates that this device uses DIO that is software paced, not hardware paced.
It doesn't look like this device has a hardware clock or buffers for high speed digital I/O.
As a result, the best throughput that you'll see with DASYLab is 100 Hz, using PC-based clocking.
One option is to simply read the digital signal with an analog input. You may need to use scaling or a trigger module to force the actual voltage values to 0V and 5V, to match the TTL Low and TTL High specifications.
07-10-2013 08:40 AM
Thanks CJ!
I got an answer from MCC and it is limited to a max of 250 samples/sec on their end. I was hoping not to have to use an Analog channel but "que sera sera"
John