Controlling Kepco Power Supply via VISA

[tonyc_fla]

Hi there, I'm currently trying to communicate with a Kepco High Voltage Power Supply (BHK 400-.4MG) 

http://www.kepcopower.com/support/visa-bhk.pdf , here is the instructions on the functions to control it.

My goal is to step the voltage until I see current draw and then halt the program. I would do this via Lab view but the driver and vi support is for ancient versions of Labview. Instead, I wrote a program using the functions included in that link to communciate it via VISA but the issue I have is I'm not sure where to send the file to.

Through the NI Communicator it shows sample code yet the send string is one line. 

Thanks.

[Sam_Sharp]

What is the actual problem you are having? If you want to implement the protocol for communicating with the device yourself, you will need the manual which gives the structure/format of the commands you can send to the device - you can then use VISA to send these commands to the device/read the response.

If you've got some code you've written, upload it to the forums so we can take a look. A link to the datasheet giving the serial commands would be helpful too.

[tonyc_fla]

The datasheet is linked above (first post) with the commands.

I want to send a file of commands at once but the communicator seems to only send a string at a time yet the "show sample" shows a full program being sent, I'm curious as to how to do this.

Example code: ViByte ps_type; ViSession BHK_Session; Kpbhk_init ("GPIB0::6", 1, &ps_type, &BHK_Session); //init ps Kpbhk_Set_Volt_Curr (BHK_Session, 15, 0.002); //voltage and current Kpbhk_OutputOnOff ( BHK_Session, 1); //output on

[Sam_Sharp]

Those are the functions names from the C API - not the GPIB/Serial strings that you need to send to the device (which the C API does for you). For example, I would expect to see a section on baud rates/termination as well as the formats of the string commands.

Again - you should post your LabVIEW code so we can see what you're actually doing.