Problems with the DC Power supply QL 355TP: I can not set the tension level

Hello

I'm trying to control a power supply DC via GPIB. The power supply being used is the QL355TP of society Thurlby Thandar Instruments (TTi). There are no drivers of OR to control the instruments, then I need to download and install the driver from the website of TTi: the package I installed is as follows:

"QL - P power supplies, (including QL Series II) series pilot National instruments (Labview and CVI)"

and I also installed the following:

"QL - P power supplies (including QL Series II) series, IVI driver"

So, my problem is that when I try to use the sample application of the driver 'Volts.vi DC Ouput'; defines a specific level voltage, does not work properly. The application gives no error, but it is not set the specific level voltage. However, other functions work properly, as the measure or activate the output. I tried a lot of things, but I don't know why it does not work.

I enclose the block diagram of the application and the front panel:

I must say that I barely control instruments using Labview and is possible that this problem would be because I did not consider things basic and mandatory.

Any help is appreciated.

Thank you.

p.s. Try to replace the decimal comma to period. It is possible that the driver does not correctly handle the comma.

Tags: NI Hardware

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