IRC5 OPC Server and PCSDK version downward compatibility.

Reinhardt CNAUS Shanghai China
I tried to use IRC5 OPC Server and PC SDK in the robot project, but the project contains various version of robotware (,, 5.61_08.00.8001, 5.15_02.00.2005, 6.01_01.00.1010 and so on). I wonder if the IRC5 OPC Server and PC SDK are downward compatible. If so, then I can use the latest version of these two software to connect with various robot of different robotware. Otherwise, I have to install and develop the function based on various version OPC Server and PC SDK, thanks.