help with global variable please

[slugger]

hi

im using labview 6.1.

i have a frame in a sub-vi that that reads 16 bytes from com7 (in my pc) into a global variable using a custom DLL. this variable is then used later to compare some data in another sub-vi.

this was working fine for a day, then this morning i started it again and ran it. when i got to the point where this "read" happens i got a dr watson exception message. (i am running the application on nt4 in the development environment). after this point the gloabal had rubbish in it whenever i did a read, although it did also hold the basic read data. after a reboot etc it still did it. the fix was to completely remove this global from the application vi and my file globals.vi , create a new one and then use that in the same manner.

everything was ok for an hour.

then the same thing happened again.

any ideas? this is really annoying.

[Michael Aivaliotis]

QUOTE(slugger @ Mar 1 2007, 10:58 AM)

i am running the application on nt4 in the development environment

NT4 like the one release in 1996? Ouch. Well, that's a tough one. It could be just the instability of everything. I would suggest replacing it with a functional global see here.