PXI 6511, 6512 and 6513 Digital I/O Modules: NI-MAX Problems

[y.emre]

Hello Everyone,

I have PXI 6511, 6512 and 6513 digital I/O modules. The datasheet information is the figure above. I want to test these modules before start my project. I used NI MAX for the test. I can see my modules where their own slots in Devices and Interfaces (like this).

For example about PXI-6511, the connection in the figure below is established using pins 1 (+) and 9 (-) by applying a constant 12 V or 24V voltage. In test panels, i want to see a LED always ON (HIGH). I used port0/line0 for the test. But there is no any change.

 

 

 

And then, i tried another test way that creating NI-DAQmx Task for PXI-6511 digital input module (like this). I set acquisition mode that 1 Sample (On Demand) according to this. I tried to run. But there is no any change.

As a last way, I used LabVIEW for the test. Block diagram has Create Channel, Start, Read, Clear and Simple Error Handler 

Creat Channel (Digital Input)  --> lines terminal --> port0/line

Read (Digital Bool 1Line 1Point) --> data terminal --> test LED ...

I applied constant voltage. But there is no any change.

What could be the problem? Thanks in advance for your answers.

Best regards.

LabVIEW version: 2023 Q1

NI-DAQmx version: 2023 Q1

[santo_13]

From the simplified circuit diagram of 6511, it looks like inverted logic i.e., no signal = high (pull up to 3.3V) and signal = low (pulled down by the opto isolator) unless the rest of the logic takes care of inversion.

[y.emre]

I'm sure I've set up the connections correctly. What do you think why can't i see the changes on NI-MAX. I have tried for three modules.