07-11-2008 07:49 PM
07-14-2008 12:36 PM
This is probably due to either a jumper setting inside the SCB-68, or possibly a blown fuse in there. The default jumper settings on those boxes are usually configured for the multifunction boards. The only time I've received one factory-configured for the 6602 was when the 6602 was the *only* DAQ board in the same order. And that has always seemed reasonable. In fact, I was rather surprised that it *ever* got pre-configured for the 6602, and wouldn't count on that being a standard policy.
Anyway, here's a link to the manual.
-Kevin P.
07-14-2008 08:34 PM
07-15-2008 12:54 PM
If the DIP switches are set to have accessory power disabled, it may well make sense that you see 0V at the fuse. Sorry, don't know what else to suggest. Anyone else?
-Kevin P.
07-15-2008 03:39 PM
07-15-2008 08:18 PM
07-16-2008 10:29 AM
Dunno about the "self-resetting" fuse.
You *do* realize that the pin for +5V from a 6602 (pin 1) is different than the pin for +5V on, for example, multifunction boards (pin 8 I think), right?. This stuff is all in the manual linked earlier.
-Kevin P.
07-16-2008 04:33 PM
Hi hanh,
Here is some additional information about the self-resetting fuse and some possible issue that may relate to what you are experiencing. Does your card function properly when you use it?
Self-Resetting Fuse Additional Information
http://digital.ni.com/public.nsf/allkb/E48B7DDC4EA9DE0886257333005C28FE?OpenDocument
07-16-2008 07:30 PM
07-17-2008 06:27 PM
Hi hanh,
If the card seems to function properly it seems like an issue with the fuse. Are you able to use a different cable or breakout connector to verify the same results? Were you able to follow the testing described in the KnowledgeBase article from my previous post. You could use a resistance measurement to be sure that the fuses and connections are valid the +5V line.