Report What I do to configure DSC to read and log 5000+ tags? in LabVIEW General Posted July 5, 2011 When you say "read and log", I assume you don't mean you're reading from one database and logging the data to another, right? We've had success reading that number of channels, but it often depends on the hardware. If you can get the data from the hardware in that time, then you're probably okay (the database writes aren't too timeconsuming). I want say read tags from PLCs and log in database. This operation isn't tima comsuming because i use only 2% of CPU time. Wich version of LabVIEW are you using? Update rate, deadband ... . I want know what you doing different, to make it work. In attached image you can see the system layout.