Q. How long does it take to read one count value?

A: Depending on the situation in your system, the actual reference values in the situation where you do not run other applications are shown below.

OS: Windows 10 1909(19H2) 64bit
CPU: Intel Core i5-6500 3.2GHz

The average value compared with system time by looping for 10000 times

Number of Channels

CNT-3208M-PE
(Board Type)

CNT-3204IN-USB
(USB Type)

1 Channel

6.2usec

225.0usec

4 Channels

17.1usec

221.8usec

8 Channels

28.1usec

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"--" is the meaning that hardware doesn't support this function or this measurement didn't test.