Service request error with TDS3034B Scope

[M. Bobby]

Hello,

I am getting an error with a service request when initializing my oscilloscope.  When I use the VISA Discard Events vi, there is an error 1073676292 that says

VISA:  (Hex 0x3FFF0004) Operation completed successfully, but queue was already empty.

However, immediately after, I use VISA Enable Event and get an error 1073676290 that says

VISA:  (Hex 0x3FFF0002) Specified event is already enabled for at least one of the specified mechanisms.

Both Discard and Enable Events are Service Request, so I am unsure why it would read that there is an empty queue, and then afterwards read that the Service Request is already enabled. 

Thank you for any help you may be able to give on the subject.

[Brandon_B]

Hello,

Has the event already been enabled before this?  I believe it will stay enabled until the VISA Disable Event VI is called, and not the VISA Discard Events VI.

Regards,