Hi there,
As I havent found a satisfactory answer to my problem I´m posting this in the hope that anyone may help.
I´d like to use LabView to read values from a clampmeter. Said clampmeter uses an "readonly" optocoupler which puts out data to an USB cable. Installing the drivers for this device it shows up as an:
Silicon Labs CP210x USB to UART Bridge (COM3)
This is an Virtual Com port which I´d like to interface via LabView. I allready used NI MAX -> VISA Testpanel and I get jiberish data from the device. I know that it is working on 2400 baud using 8 bit; 1 stop bit and no parity.
I used a Serial sniffer to evaluate the raw serial data when using the manufacturer supplied software (which works fine by the way). Even then I only saw data which made no sense.
According to some posts I tried to use a dll-node to communicate to the CP2102 Chipset via dll´s provided by Silicon labs, which didn´t work that well. Even if that should work, how do get serial (readable ASCI) data from the chipset? The Functions provided by these DLL´s seem to only target specific tasks when programming the device as a manufacturer.
I thought a virtual COM port might easily be read using LabView VISA but this one is realy giving me a hard time. Am I getting something wrong what a CP210x USB to UART Bridge is and how it is going to be read?
This is the Chipsets manufactuerer site with the Serial Communcations guide: http://www.silabs.com/products/mcu/pages/usbtouartbridgevcpdrivers.aspx
Any hint on how to read data from this particular chipset is highly appreciated. even a Roadmap on how to approach the probelm would be highly appreciated as I´m realy lost on this one.
Greetings,
Jan