USB RAW data acquisition

[JeDu]

I finally got the new software from the company (Metler Toledo) wich is able to communicate with the device from USB. So now I can get my data.

But as I had worked on it since a while, I tried to "Snoop" the USB communications...I got a huge file that I'm not able for now to understand what it means...so I will just use the firmware for now.

[aflick]

JeDu, Was the software you recieved from Mettler a VI? I am also wanting to communicate with a M300 with Labview. I am currently communicating with a Max 770 over rs232 with a vi. Thanks, Alex

[JeDu]

It is a stand alone software, I'm not able for now to use it trough LabVIEW, but it communicates from the USB port, so I need one less RS232 port for that device. Also, you can adjust the parameters of the M300 from the software.

[Majicz]

Hello Jedu

Did you get any luck with the MT300 communication?

Mathews

[JeDu]

Hi Mathews,

The Configuration Software from Metler is able to Datalog the data and save it on a .csv file. So now I use Labview to open the .csv file in read only and I go read the data in the last line. It's the best I found to compile all my data together.

[Majicz]

can you share the vi

[JeDu]

There's what I'm using to get what's in M300 file. You have to enter the path/name of the file and then it reads the last line of it. I open the file in read only to be sure that there's no trouble with M300's software.

[bwc1]

Hi

I have just purchased a M400 from Mettler Toledo. I am having the same problems that you are having with LABVIEW communication. with exactly the same error codes and exactly the same out come all zeros from the end point buffer.

Did you ever manage to solve the problem.?

[JeDu]

If you look at my last answer, I did got my readings by using the MT software. This software reads the M300 and put data in a .csv file. I use Labview to open that file (in read only mode) and get data of the last line recorded.

It looks like using it by USB would necessitate to understand very well all the info that is transmitted in both ways.

[bwc1]

Yeh i get that feeling. Ive been trying to get information from the company for over a week now. all they sent was a document with two commands A and D tried them in VISA and get the attributes error. Also tried using the interupt usb communication vi with no success get all zeros from endpoint buffer. Did you have to buy the software or did they supply it free ?