08-01-2008 10:19 AM
08-01-2008 10:37 AM
This is quite easy actually. I've done this type of relay control in the past... works well..
Do I need a printer driver, do I need a DLL?
No. All you need is your PC and the Labview Development System. You may have to change some settings in the PC's BIOS. I'll look for the post I wrote on this.
Could anybody show me where I should start, or lead me through some way?
Yes. Open LabVIEW
Under the Help menu, select >Find Examples
Do a search on "Parallel Port" There are two examples that will be useful. You will need to set the addres of your port, which you can find in the Control Panel > System > Hardware Tab > Device Manager
Look under COM & LPT Port, and open the properties for the LPT port. The resource address should be there. Mine is : 0378
Follow the instructions in the example. You can experiment a little and wtach how it controls the relays.
In the meantime, I will look for the thread & a document that discusses this subject.
R
08-01-2008 10:40 AM - edited 08-01-2008 10:41 AM
Have a look at this thread.
And this post.
which has a .pdf document called: General Information on Parallel Ports.pdf
Let me know how it goes.
R
08-01-2008 11:27 AM
08-06-2008 09:58 AM - edited 08-06-2008 10:00 AM
08-06-2008 10:30 AM
08-06-2008 11:52 AM
08-08-2008 08:18 AM
08-08-2008 09:34 AM - edited 08-08-2008 09:35 AM
If you want to use a different blinking rate use a shift register in a loop:
08-08-2008 09:54 AM