Slow write rates with 9188

[JimAllen]

I have a 9188 chassis that I have been using to acquire data from several different c series modules without any issues. The data rate is usually between 2 and KHz. I've recently added a 9269 analog output module and can't seem to write much faster than say 20Hz?

I am running a single loop with 1 analog read task, 2 digital write tasks and 1 analog write task, using the read task to throttle the loop.

[wfernand]

Cosworth,

"The data rate is usually between 2 and KHz"? What do you mean? Please be more careful and specific when writing your answer. What difference do you see between this module and others modules you usually use? What are those modules? The 9269 is an analog output module with 100 KS/s update rate. 

Regards,

William Fernandez

Applications Engineer

National Instruments

[JimAllen]

Sorry about that, it was supposed to read 2 and 5 kHz.

After doing some more investigating with the 9188, it appears to only do high speed writes if you buffer the data due to network latencies. I'm trying to do a PID control loop on this so that doesn't really work for me, I've replaced this chassis with a cRIO chassis.

Thanks for the reply.