08-21-2012 07:34 AM
In a realtime application we have the problem to loose connection to firewire compact flash. The CF is just a backup - but the whole process of data storage ist stopped occationally. The system ist running perfectly for hours - but then we have cases where we loose connection after 5 to 30 minutes, without beeing able to identify a problem. Cable connections seem to be perfect, restart may solve the problem - but not always.
Does anybody have experiance with firewire card 8252 - or in combination with PXI 8102 (which could also be the source of the problem) - that could help to undserstand the problem?
PXI 8252 has three firewire ports (A,B,C) - could ONE of these be a problem while the others work reliably?
08-22-2012 04:53 AM
Do you use a bus powered drive or do you use additional external Power supply?
If so i suggest to use only the Bus to Power the drive.
It might also be usefull if you could provide us with the Software and Driver Versions you use.
Regards!
Moritz M.
08-30-2012 04:14 AM
Hi, thanks for answering.
we use bus powered connection.
After some more local discussion I should say that we use three systems in parallel - but only one fails sometimes. The difference for the very system is that three threats are running (-> higher load) and that we use a bus extention, so there are some hardware solutions which may have some influence on the stability.
Thanks, regards
Volker