I have yet to build a mill and then make the VFD work with RS485, so i can not help, but double posting also does not help.
Leaving both topics till someone answers then deleting the one with no answer, or merging them to a single topic.
In the meantime, here is everything regarding mb2hal found on LinuxCNC web and forum:
www.google.com/search?q=mb2hal+site%3Ali...org&aqs=heirloom-srp
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