Individually access inputs and outputs on single port (PXI-6509

[ARL00000000000000]

Hi,

I'm using PXI-6509 and this sentence from the manual:

"You can use each of the DIO lines as a static digital input (DI) or digital output (DO) line,"

leads me to believe that each individual DIO can be set as input or output (even within ports), but theimage:

shows that these ports cannot be set as inputs and outputs within the same port.

On another card 6284, with DIO's, I can set them individually.

Can someone confirm that the 6509 is acting correctly?

Best Regards,

Adrian

[nyc_(is_out_of_here)]

If you create a task then it appears you can control an individual DIO line.

[crossrulz]

Using the 6509, I have had inputs and outputs on the same port.  I'm not sure why the Soft Front Panel is not letting you do that.

[ARL00000000000000]

Hi guys,

Thanks for the feedback.

How I found the problem was as follows:

• I created 2 virtual channels as input (P6.6 and P6.7)
• I created 6 virtual channels as output (P6.0 to P6.5)
• Using a single digital write (DAQmx VI) I energize the coil on a relay using one of the outputs
• Using a single digital read (DAQmx VI) I read the state of P6.6 and P6.7. As soon as I read either of these ports, the coil is de-energized and it would seem the whole port is set as input even while I am attempting to do these things separately.

(Is my approach OK?)

So after this I went to look at the soft panels and saw there that the lines were not individually controllable.

It certainly feels wrong that this could be the case.

Thanks again,

Adrian

[Stop_Luke_and_Listen]

Hi ARL00000000000…,

I experienced the same behavior in the test panel.  I'm doing more research to determine if this is correct behavior.

[ARL00000000000000]

Hi Defective,

Have you had any luck with this issue?

It still seems weird that it would be the case.

Thanks,

Adrian

[Stop_Luke_and_Listen]

Hi Adrian,

I looked up the product page of the device and found the following information: line direction selectable on an 8-bit port basis (https://www.ni.com/en-us/support/model.pxi-6509.html).  This is consistent with what you are seeing in LabVIEW and NI MAX.

[ARL00000000000000]

Hi Luke,

Thanks for the reply. Unfortunately the link posted leads to a "Sorry, page not found".

Best Regards,

Adrian

[nyc_(is_out_of_here)]

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@ARL00000000000000 wrote:

Hi Luke,

Thanks for the reply. Unfortunately the link posted leads to a "Sorry, page not found".

Best Regards,

Adrian

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He had an error with the URL. Easily corrected if you had observed what was in the URL box in your web browser.

https://www.ni.com/en-us/support/model.pxi-6509.html

[nyc_(is_out_of_here)]

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@Defective_Luddite wrote:

Hi Adrian,

I looked up the product page of the device and found the following information: line direction selectable on an 8-bit port basis (http://sine.ni.com/nips/cds/view/p/lang/en/nid/13261).  This is consistent with what you are seeing in LabVIEW and NI MAX.

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On page 3 of 10 of the linked Data Sheet, it states You can individually program each 8-bit port on an NI 6509 to be input or output

That is very very confusing.