CDAQ 9174 Serial Connectivity

[mimran]

Hi

Is it possible to connect CDAQ 9174 to serial comm port of PC. Infact, one of my control system haven't got any USB or ethernet port so I'm restricted to serial port only. I guess its driver issue. Any idea of how to resolve this issue?

thanks

[gt3000]

Hello mimran,

The cDAQ 9174 is a USB device and there is no supported solution for using a standard RS232 serial port.  Any Serial to USB converters would not offer the connection and data rate required by the DAQmx driver.  To ensure the integrity of your data of USB, the cDAQ uses a technology call NI Signal Streaming to enable packets to arrive and depart from your PC at the right time.  Likewise, USB 2.0 has a data rate of 480 Mbps.  Serial communication is limited to much slower rates.

If you did connect the cDAQ via some kind of serial converter, it will not be recognized by your Windows PC.

Are you able to change your control system?  You may want to call your local NI branch and speak to an Inside Sales Engineer about alternatives.

Regards,

[mimran]

HI George,

I have already discussed my problem with Technical Support team and they also explained me same thing. Anyhow thanks for your help.