How to talk to TDS754C by LAbWindows via PCI-GPIB???

[TeppeiKatori]

Hi friends, I recently purchased LabWindows/CVI 9.0 to read oscilloscope by PCI-GPIB.

It works fine with Tektronix TDS200 series, because I found sample codes on online,

but I still cannot talk with TDS700 series. It gives me error message,

"initialization error: ERROR: Identification query failed Check your connections and make sure you have the right GPIB address.", even though Measurement&AutomationExplorer->GPIB shows right physical GPIB address.

Does anybody have sample code for TDS 700 series? or where should I modify in TDS200 series code? Thanks! Teppei

[markus kossmann]

Well, "initialization error: ERROR: Identification query failed" means that your code  did sent an *IDN? command to the scope and expects a response specific for the the TDS200. However the TDS754C sends a different response to *IDN?  ( as you can check with MAX yourself).  

So you have to adapt the sample code to  the TDS754C. Fixing the Identification query is probably easy, but the 754C might use other commands and data formats for responses than the TDS 200 (check the manuals of both scopes) . So it might be a lot of work to adapt the code.