3. PREPARATORY FUNCTION
PREPARATORY FUNCTION (G FUNCTION)
A number following address G determines the meaning of the command
for the concerned block.
G codes are divided into the following two types.
One–shot G code The G code is effective only in the block in which it is
Modal G code The G code is effective until another G code of the
same group is specified.
G01 and G00 are modal G codes in group 01.
G01 is effective in this range.