First I'm new in this and every help is valuable. I successfully made CSD but now I have problem with Rcomm communication. I wanted to use one Rcomm instance from two active object's for writing and reading data during CSD. Problem is that active object that sends data is much faster then one that receive. I also tried to do switching write/read from one active object but it's to slow. Is it even possible to use one Rcomm instance or I should use two. Thanks in advance