30 serial channels per cRIO

[Taco.Dust]

I am designing a year long study, and I want to use the cRIO to collect data once per hour for about a year, the only issue I have is that there are 30 sensors I need to input to the cRIO. These sensors have 3 ports, +5v, GND, and serial at a specified baud rate. I need to read each of these sensors individually and the serial port modules don't quite do that.

The other option is to relay through each of them one at a time physically and get the serial readings that way, but I would prefer to just use modules.

Thank you very much in advance

-Adam

[crossrulz]

Well, the 9870 has 4 ports in a single module.  With an 8 slot chassis, that will give you 32 ports.  Do you have other modules to put in your chassis?

[Taco.Dust]

Ni those are the only modules I need, but the issue I found when I looked at these was that they use DB9 connectors. I just need to read a serial string. Can I just connect to the rx on the DB9 connector?

[crossrulz]

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@Taco.Dust wrote:
I just need to read a serial string. Can I just connect to the rx on the DB9 connector?

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RX and GND.