RS 232 to mA conversion

[Seema]

Hi,

I am planning to use Labview for data acquisition and I have a few 4-20 mA signals coming in, that I want to monitor. I also have an instrument which gives O/P through an RS 232 cable. Is there a way I can convert the signal to 4-20 mA so that I can direct it to Labview via I-Net 100 ? 

[RavensFan]

Why do all of that?

Just use LabVIEW to read the serial port.  There are examples such as Basic Serial Write and Read in the example finder.

[Seema]

Thank you  for the reply Ravens Fan.

I am using Labview for the first time. I apologize for any silly questions.

So, can I use Labview to directly read the serial port? Do I need any interfacing hardware?

[RavensFan · Accepted solution]

Nope.

Just a serial port.  Many new PC's lack the old fashioned DB9 serial ports.  So if you don't have one, you'll need a USB to RS-232 converter.  Its drivers create a virtual com port.  It will show up as Com6 or 7 or some unused number in your system.

I'm not familiar with the I-Net 100 that will read your 4-20mA signals.  Hopefully they will provide whatever drivers you might need so that LabVIEW can read that DAQ device.

[Seema]

Thank you very much Ravens Fan