Output signal high at DIO lines of 7330

[malkoba]

Hi

I am using Labview 7.1 with Ni motion controller. I am trying to detect the output signals at the auxiliary DIOports of the card using the attached programme in the NI example finder. My board ID is 1 (thats what was allowed by the programme) and I put port 1 , to check the DIO lines of it. I checked pin 10 (port 1-bit 0) and pin 44 (port1-bit 1) using an oscilloscope. The output is high at 5volts.

I changed the DIO pin polarity switches to active low status but the output remains the same.I fiddled with the set and reset buttons of the programme, initialize the card but nothing changes.  Any idea on how to figure whats wrong? 

Thanks

Mal

[Sarah_Coleman_NIUK]

Hi Mal,

As far as I can tell that should be working. Have you tried testing the device with MAX to make sure it's working there?
Have you grounded the oscilloscope probe to the digital ground of the connector?
When you changed the direction in MAX did you save the changes?
Have you tried running the Write 1 Point to Digital Line VI to try and toggle the individual lines?

[S_Kanchap]

Hi Malkoba,

try it.

[malkoba]

Hi

Thanks for the reply. Sorry for the delay in response as I was on vacation. I tried your programme but the result remains the same. The output is always high.

Max shows the card is working properly. It also shows the board type as 63. But the programme only takes in board ID as 1. How can set the direction using MAX and save the settings?

I tried the write 1 point example programme on axis 1 ,line 1 and tested the signal on pin 44 and 42 (oscilloscope ground), and toggled the line but the output is high. But when I stopped the programme with the STOP button it gave an error message 70102 with a possible cause the setting doesn't match the line direction?

The oscilloscope ground was firmly connected to pin 43 or 42 of the board for all tests.

I appreciate your help.

Thanks

Mal

[malkoba]

Hi

The output  lines work when I configured  the write IO data vi as configure as input in the write one digital line example programme. How can I either use this information to work the auxiliary digital output programme.

Thanks

Mal

[Sarah_Coleman_NIUK]

Hi Malkoba,

Have you managed to get this working? I'm not sure I understand what you mean in your posts. If you could post a description of your problem or what you're trying to achieve I will have a look into this for you.

Regards,

[malkoba]

Hi

Thanks I seem to get it working now.

Thanks

Mal