Dear rfpui,
I agree with you about this MD110.
It is old version.But I can not change it to anther one at this moment.
However,I've done some commands as your guide.
These are the results:
<GHGRI:GRP=020,LIM=2,SERV=0000,TRAF=15,SEL=000,QUE=10;
NOT ACCEPTED
GRP
ALREADY ASSIGNED
<
<GHDAP:GRP=020...