B&K 1786B power supply driver : setting voltage?

[ChrisNagy]

I am using a B&K 1786B power supply, and have downloaded the LabVIEW driver from NI (attached).  It appears to set up the serial port correctly, putting the device into "Remote" (a.k.a. PC control) mode.  The link indicator comes on during communications cycles, and the output is switched on and off by the software when prompted.  However, the output voltage remains at zero (I have it set to 6.0 in LV, current control to 1.5, max voltage to 18.0).  I have read some posts that would suggest the B&K documentation is incomplete.  Am I missing some tricks?

[Sammy Z]

Hi,

Are you running a particular example or did you start this vi from scratch?

It may help if you post your vi for us to look at!

Regards,

Sammy Z.

[ChrisNagy]

Sammy,

I have attempted both the "Setup Output" and "Monitor Output" examples, as-is, from the project.  I am using COM1, an 18 V maximum, and a 6 V set level.  The com port communication seems to be working, as the supply goes into remote mode and thurns the output on, it just will not adjust the voltage level settings.

[Justin_E]

Hey Chris,

Are you using the IT-E131 communication cable, as required per section 4.1 of the user's manual (found here : http://www.bellnw.com/images/man/0218.pdf)? Have you tried communicating with your instrument through a VISA Test Panel? I'd suggest looking at section 4.4 in the user's manual, determine some basic commands you can send to your instrument, and use the VISA Test Panel to test communication. Once we can establish communication and manually set some things, we can take a look into the examples.