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Digital I/O

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cDAQ-9181 Digital Output is Slow



I am using c Series 9375 digital IO module on cDAQ-9181 ethernet chassis.

The software used is VBAI 2018. Global virtual channels are created under MAX in order to be able to use the device on VBAI.


This device generates outputs much slower than I expected. Attached the screenshot of the benchmark, you can see the time it takes to write an output LOW command is 68ms in average.

In datasheet, it is written that device should generate signal in less than 1ms. I can understand a couple of ms difference or maybe around 10ms because of the software/platform, but it is weird that this operation took 68ms.

Computer(Win10 x64) has core i7 CPU, and I can get much faster results on same computer even with device like USB-6501.


Is this normal behavior for cDAQ on VBAI? 




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