NexGEN

Hi Everyone, I am trying to develop a real time data Application. In this application i am collecting the real time data from the Energy Meter, for this i am using the sbRIO 9601. I just want to save this data for 90 days in sbRIO memory or flush data in FIFO format after 90 days. So i need your help that what type of file format i use to store the data in sbRIO or why?? The frequency of receiving the data from the meter is less than 1 Sec.... the packet size of receiving the data is 140 bit/Sec....