Simulation Test Panel in MAX for NI 9206 shows 32 AI channels, but data sheet says 16

[whemdan]

I'm simulating this device and the Analog Input (Test Panel in MAX) allows me to add 32 channels for all input configurations (DI, RSE, and NRSE) while the NI web site (http://sine.ni.com/nips/cds/view/p/lang/en/nid/207480 ) and data sheet only specifies 16 DI channels.

Here's what the NI-DAQmx 9.0 release notes says:

NI 9206 C Series 32-channel, 16-bit analog input module for fuel cells (AI, PFI only)

What is the correct number of channels for these devices (NI 9206, ENET-9206, and WLS-9206).

Thanks,

   - whemdan

[MarkGrot]

There are 32 analog input channels in a single ended configuration (ai0:31).  The NI 9206 is usually used in a differential configuration which halves your effective number of channels by matching a positive input (say ai0) with a negative input (ai8).

Page 14 of the Operating Instructions and Specifications for the NI 9206 explains the pairings.

This applies to the NI 9206 regardless of platform (Compact DAQ/USB/ENET/WLS/etc).

Message Edited by MarkGrot on 09-11-2009 11:02 AM