Keithley 2602 communication with LabVIEW (RS-232)

[Showtime_DW]

Hey dude. I am wondering how you put the driver into the " Instr " folder? I download the Keithley 2602 driver file from Keithley and there are 3 folders including "examples,private,public" and other files. Did you toss them there? And How to acually check I can communicate with the source meter? Thank  you

[Dennis_Knutson]

There should be a top level folder called something like Keithley 2602. This folder goes into the instr.lib folder. Same structure as the 34401 folder.

Run an example - Help> Find Examples

[Showtime_DW]

Hello, I think I am having the same issue like you did. Could you tell me where to get the new examples and how to change the settings in my labview for consistent 7or8 bits? Do I need to upgrade my firmware ?

[Showtime_DW]

Eventhough my bitW is match the source meter, I still get error .

[Dennis_Knutson]

Unless you provide the actual error code/message, no one can help.

Your basic research of RS232 should have told you that the bit setting is only one of several that must match at the pc and instrument end. The type of cable must also be correct. Check all of these before posting back with the error code.

[Showtime_DW]

OK, I checked all the settings from front panel,  to the equipment and NI M. ( Please the attached pic for details)

I still get error code -1073807339 all the time , says " VISA open in keithley 2600 series,lvlib: Initalize.vi---> KE26xx config source&measure vi. "

for some reason, ever time I try to run the program, the bitw will set back to 7. ( thats why I set 7)

Please give some advices , thanks a lot.

Daniel.

[Showtime_DW]

[Dennis_Knutson]

Yes, the VI will reset to 7 if you call it from the top level example.

Try switching cable types. If you ae using a null modem, try a straight through. If using a straight through, try a null modem.

[Showtime_DW]

whats the difference between these cable? Are they look like the same?

[Dennis_Knutson]

Externally, they look identical. With the null-modem,.the tx and rx pins are swapped. Need an ohmmeter to tell them apart. Your manual should tell you what to use.