CP210x UART bridge in TH1941 multimeter

[Erizosinpuas]

Hello,

I'm trying to connect my digital multimeter with labview 2016, i downloaded the driver for the UART bridge in silicon labs website and all is working OK, in the MAX, VISA test panel  > Input/Output i send the IDN command and its working its sends the model and version of the multimeter.

So, i need to connect the multimeter with labview, for collect data and start working on my experiment. What i need to do for start capting data from multimeter? I need to do instrument driver? or i need to do a program in labview to read serial port?? 

The multimeter es Chinese and in labview i cant find the driver of my multimeter.

The multimeter is a TH1942 USB with cp210x USB UART bridge for pc connection.

Thank you for help!!!

[crossrulz]

If there are no driver library, then pull out the manual and figure out which commands you need.  It will show up as a serial port, so you can just use VISA to write to and read from the DMM.

[Erizosinpuas]

Thank you for your answer, but how i can read the data with VISA Test Panel???

Only i can write commands (TH1941 manual) to change between ohms and volts and this kind of commands.

But how can i receive the data from the multimeter?

In the manual, they purpose a comunication program example in C language, but i need to use it in labview, how i can do it? 

Thanks

[crossrulz]

Have you looked in the palettes at all?  There is a whole palette just for VISA communications (Instrument I/O->VISA).

[Erizosinpuas]

Hi crossruiz,

I done the comunication and write data in txt file, adding some subVis. But I think the read or the write is too slow. Now is capting 5-6 values in one second. But my multimeter transfers at 25Hz, 25 values in one second, how i can sinchronize it for get a real reading?

Thanks for helping!!