Reading from COM port

[plazzTT]

Hi,

I've been using HyperTerminal up until now to read data off a Serial Port. (COM4, it's with a Bluetooth Serial Port Service)

I'm trying to use LabView instead to do this now, just read data off the serial port and output it to a textbox (for now).

I've read a few of the threads here about it, and I have a question about how to specify the "VISA Resource Name" in the VISA Configure Serial Port function.

When I create a constant off it, it makes a dropdown box, but there is nothing in it, only "Refresh". Should there be a list appearing here? I've attached a picture.

I've manually typed in COM4 now, is this correct?

I get an error when I run the VI shown below. The error source is "Property Node in VISA Configure Serial Port (Instr).vi->serial.vi"

Any pointers would be great.

Thanks,

John.

[Yair]

You can control the list of COM ports and their aliases through MAX.

You can also do it by editing the visaconf.ini file.

Another option is to use ASRL::INSTR4 as the name of the port, which will probably work.

[James N]

Check your MAX to ensure NI-VISA is installed. It pretty much needs to show up in MAX as a Serial & Parallel device.

For a deployed executables, check out:

http://digital.ni.com/softlib.nsf/websearc...625709F005BAB77

-James

[Val Brown]

For a deployed executables, check out:

http://digital.ni.com/softlib.nsf/websearc...625709F005BAB77

-James

Is that actually the latest NI-VISA RTE? I believe I have a v4.0 in use in my deployed software.