custom device - BK Precision(9202) power supply

[ani94]

Hello 

I tried to build a custom device of the power supply, In this, I need to control the voltage and current also I checked for the overvoltage protection state, I am able to add the initialization, Main and RT driver VI. When I added the custom device in Veristand I am not able to read output or set any input to the power supply. I am not able to find where exactly the issue and how to resolve that problem. Please find the attached  LabVIEW project. Can anyone help me to resolve this issue 

Thank You

[okubik]

Hi ani94,

you should improve your code style in the first place. For instance good practice is to create a single global variable which stores property names for your Custom Device as a default values of a subsequent string controls. For example like here:

You can then use this global variable to define property name when reading/writing property values across your Custom Device. Likewise it is done on this example:

Back to your original question, there are two critical failures in your RT Driver:
1. You have typo in the "visa resource name" property name

2. Instead of providing VISA resource name from your configuration you pass empty string to the hardware initialization