Instrument driver for E8267D Vector Signal Generaor, Output Enable VI not workin

[ccdietri]

Hi,

I'm using the Labview 7.1 Instrument driver for the E8267D Vector Signal Generator. The initialize, Modulation Control, RF Config and close VI's all seem to work correctly, however, the VI to control the final output enable (RF ON/OFF) only appears to be able to turn the output OFF. (won't turn on regardless of boolean T/F input).

Has anyone else had this problem, is there a fix?

Chris Dietrich

R&D Engineer

Synopsys

[Sammy Z]

Dear ccdietri,

Please post more information about the changes you've made on the vi, possibly with screenshots, and I'll try to have our R&D department (at NI) look into this issue.

Sincerely,

Sammy Z.

[ccdietri]

Hi,

I haven't edited the agpsgmxg Configure Output Enabled.vi. I am using it in the attached sequence (see attached PNG file showing the setup_PSG.vi) to setup the E8267D to output a sine wave with amplitude 12 dbm. The frequency is passed as a parameter.

The output of the E8267D always stays at RF OFF, or switches to RF OFF whenever the Configure Output Enabled.vi is run, regardless of the boolean input.

I've tried changing the order of the vi's (making the output enabled vi the last before closing the connection) no change in behaviour. 

Thanks for your help,

Chris Dietrich

R&D Engineer

Synopsys

[Sammy Z]

Hi ccdietri,

I installed the driver to see if I could help you.  I don't have an E8267D handy to be able to test it myself, but I noticed under applications examples vis that the order of the vis is to put the config vi first, then output mod, and output enabled last.

Please look at the example and try the same for the RF setup.  Also, study the example vis to make sure that you aren't missing a critical step. 

Hopefully this will solve the issue.

Please let me know.

Thanks,

Sammy Z.

[ccdietri]

Hello,

I followed the order of the example and tried the example's method of intializing the E8267D, no luck. 

Also, I tried running the application example, it actually cannot turn on the RF output either. I think the procedure call the VI makes isn't working.

Chris Dietrich

[Sammy Z]

Hi ccdietri,

Thanks for trying those.

I'll escalate the issue and will let you know when I have an answer.

Thanks for your patience.

Thanks,

Sammy Z.

[Sammy Z]

Hi ccdietri,

Would you please take a Spy capture of the example running?

Also, you should try using the IVI driver wrapper VIs in LabVIEW and see if the IVI driver has the same problem. 

Is your firmware up to date?

Please let me know how that goes.

Regards,

Sammy Z.

[ahmad88_76@hotmail.com]

Hi, I had the same problem. When I captured the vi, i realized that the SCPI command being sent was OUTP:STAT 0 at all times. To get around it, i simply created another vi to send the correct command via gpib connection to the instrument.