I'm trying desperaterly to get 3 Period measurements on a single 9411 module. I'm measuring ranges from 0 - 5000 hz, I'm able to do this accurately using the high frequency, two counter period measurement method, for two inputs if I read just counters 0 and 2; What i would really like to do is to get it to work with the low frequency single counter as it appears channel 1 and 3 are not available in this mode in the high speed mode. What is the minimum period for the low frequency counter, nothing is defined in on line or in the manuals, as to the range of the low frequency? Even in Measurement Explorer I can't get one low frequency channel to work, I keep getting an error "specified operation did not complete, because of specified timeout expired.
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