I hope someone familiar with this control will chime in, but it could be the case that your older control does not have seperate H and D offset registers. They might all be in one register (H?)
In that case, when you need to store a radius value for a tool, you'll need to do it further down the list. For example, if you have a 20 tool magazine, then you can store the H offset from tool1 to tool 20 in the first 20 positions in the offset register, then store tool diameter (or radius) values from 21 to 40 in the offset register.
You'll have to keep this in mind when programming, so that you call H1 for tool 1 length offset, and (perhaps) H21 for radius offset for T1. Someone who knows, please add your comments!
A newer controller would have seperate registers for H and D so then H1 and D1 would normally be associated with T1.
Fun, no?
First you get good, then you get fast. Then grouchiness sets in.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)