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PXIe-4135 implementing triggers would cause high current leakage(or range issue more specifically)

Hi, I have 4 pieces PXIe-4135 installed in PXIe-1092 chassis. I tried ‘nidcpower’ programming example to synchronize all my PXIe-4135 when doing voltage sequence, here are my configurations:

1. Set one of 4 PXIe-4135 as the master channel, and the other 3 to slaves;

2. The slaves would source when they received master's 'source trigger', and do measurements when they received master's 'source complete event';

3. The Master's 'source delay' was set to 10ms, and the slaves' source delay was set to 50us(which is exactly the same as the official programming example and I think such a setting makes sense).

4. All of them are 'auto range';

5. with nothing connected to these PXIe-4135(open measurement).

 

The current I got(PXIe-4135 measured) is confusing, the current the master channel measured is reasonable, down to 10fA(10e-14) or around, but the current the slaves measured were several hundred nano amperes(10e-7).

Only when I cancel the trigger(not use) or increase the source delay of the slaves to 20ms above, the result could be reasonable.

I have put my code and results on this post, please kindly check it. Thanks.

 

 

 

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