Moving to certain coordinates

Does the universal robot move relative to it’s previous position or relative to a base position? So, if I move it to a1, a2, …a6 and now i want to move it to b1, b2,…b6, would I need to subtract ‘a’ coordinates from ‘b’ coordinates in order for it to move to that position or should it just be able to move to the new coordinates? (I am using RTDE to program the robot and move it to certain coordinates using either moveL or moveJ.)

HI,
UR will move to waypoints in base feature. Using function pose_trans() and pose_inv() together can move to points in specific feature.