Can I cascade an SCXI-1531?

[Electromecha]

I have a requirement to filter my SCXI-1531 inputs well below the 2khz minimum filter provided on the 1531.  Can I cascade this module into a SCXI filter module for additional filtering?

Thanks in advance. 

[Ryan_V[DE]]

Space,

Unfortunately, this is not one of the supported cascading configurations, outlined in this Tutorial. Theoretiaclly, this is possible in Traditional NI-DAQ (Legacy), but it is not something that NI supports or provides examples for. In general, in NI-DAQmx, the first stage module of a cascaded configuration must not be software programmable. As the 1531 is software programmable, it cannot be used as a fist stage module.

Unless you are reaching the maximum sampling rate of the chassis, I would oversample your signal (at least 4kHz per channel), then perform software filtering and decimation to reduce your sampling rate as if you had merely sampled at a lower frequency.

Hope this helps,

Message Edited by Voltage Viper [DE] on 05-31-2006 08:04 PM

[Electromecha]

Understood. 
Thanks much for your prompt response.