Write to multiple digital lines

[bfeddeck]

I am trying to write to 2 digital outputs. When I set one to high both go to ~2.5v. When I set both to high, both go to ~4.6v. If I set both to low, both go to ~0.0v. I have LV5.1.1 & a DAQCard-AI-16XE-50 & an SCC2345.
I am using the DIO Port Config.vi outside the loop and DIO Port Write.vi inside the loop. I have also configured the channel names (Alarm, E_Stop) in NI DAQ 6.9.

[RIO-Todd]

Are the virtual channels (Alarm, E_Stop) configured for single digital output? If so, are you using those channel names as inputs to the DIO Port Config VI? Are you calling the DIO Port Config VI and DIO Port Write VI more than once? Why don't you attach the digital I/O part of your code and then I can take a look at it.

Regards,

Todd D.
National Instruments
Application Engineer