I will be using a pci-6515 board for some digital output control. I have not used DO board before. If I write a boolean value to a channel, for an open or a close signal to a valve for example, will the channel remain in the state I've written until I tell it to change back? Or do I have to put the write command in a loop until I wish to stop the command?
I have a follow-up question. I'm using the same board and I want to know how to make a "1" generated in LV be a particular DC signal out. For instance, I've made a simple write-out VI using one of the examples. When I click a push-button, I assume it's setting a high-value but when I check the actual line on my SCB-100 board, I am only registering 0.6mV. I'm using port 6 line 0 of the PXI-6515. I have wired the GND of the external system and the 24VDC line to the P7.COM (VCC) line. I see the 24VDC when I put a voltmeter across pin 46 and pin 47.
I want to be able to push a button in LV that sends 24VDC when I set the switch to the "1" position.
Any help would be appreciated. I've gone through the 6515 manual and I haven't been able to figure out what's wrong.
Thanks in advance,
P.S. I'm using LV 8.2, with PXI-6515 in the PXI-1033 chassis and the SCB-100 connection block. Windbloze XP.
I've been having some luck getting my PCI-6515 board working. I think you may not have your pins wired up correctly. I was having difficulties with this when I first started using the board as there aren't any wiring diagrams in the manual. Check out the following link: http://zone.ni.com/devzone/cda/tut/p/id/3498 It gives good wiring diagrams and explainations of common errors when hooking up the board.