tds744a (error-1301 TKTDS 7xx Config Chan)

[alvin_o]

hello,

I recently migrated to the labview8 environment from 7.1. A program that was originally written in labview7.1 for the tds744a o-scope (over GPIB)
has been quite problematic in labview 8. The issue is the setting of the vertical scale for the individual channels particulary the first three channel when a 10x probe is attached. A limit of 1V/div is allowed under labview8. This has not been a problem under labview7.1. Appreciate any suggestions. Thanks.

[Angela M]

Hello Alvin_o,

I did a quick search and it appears that there is an instrument driver for this instrument in LabVIEW 8.0.  Which instrument driver are you using?  Here is a link to the instrument driver page for the TDS 744A.

If this error continues with the LabVIEW 8.0 instrument driver, can you attach a short NI-Spy capture where the error occurs.

Regards,

Angela

Applications Engineer

[alvin_o]

Hello Angela

I tried using the LabVIEW 8.0 instrument driver but the problem keeps happening. Attached is the NI Spy capture file (capture.spy). I have set channel 3 of the o-scope at 5V/div with the instrument address at GPIB0::6::INSTR. The error occurs around line 65. Attached is a second capture file (working.spy) when things are working fine as a reference (All four channels on the o-scope are set below the 1V/div scale). Thanks for your help.

alvin

[Angela M]

Hello alvin,

I am sorry, at the moment I am not able to see all the calls you are talking about.  In your NI-SPY configuration, what calls are you capturing?  I may need to reconfigure my NI-SPY to see your errors.

Regards,

Angela

Applications Engineer

[alvin_o]

Hello Angela

I have fixed the problem by tweaking the vi block that was causing the error. Thanks again for your help.

alvin

[Albert.Geven]

maybe you can post the tweaked vi for updating the library

[alvin_o]

Here's the tweaked vi. This is just a quick fix with the 10x probe (tektronix P6138) that i'm using.