How to add a TSI Mass Flow meter to PCI 6220 Card

[RAL1]

Back Again

I am trying to connect a TSI 40241 Flow Meter to a PCI6220 card, using the RS232 from the TSI Mass Flow Meter.

with no success.

I am using lab view 8.6 with a SCB-68 connect box.

I power the TSI from a separate 5 Vdc supply.

 I have connected the Flow meter to a differential input, Analog output of the Flow meter to AI4 and AI12

But this only has flow indication in one direction

Any help for this problem?

Richard

Thank You Dennis for the help on the Split and Merge problem

[Henrik_Volkers]

If your Mass flow meter has a RS232, you do not hook it up to your PCI 6220, instead you use a RS232 port!

If your computer doesn't have one, use a USB to RS232 adaptor.

Then use the VISA driver to communicate to the instrument. 

[LabBEAN]

If you want flow, temperature, and pressure feedback, you have to use RS-232.  If you just want the flow, then you can connect the analog output (AO) to the DAQ card and read it.  Along with RS-232, the AO is provided through the round connector (e.g. pins 3 and 4 for the 4000 and 4100 series devices).

See here for an RS-232 LabVIEW example provided by the manufacturer (TSI).