Yaskawa YASNAC PC NC Programming Manual - Manual (Page 137)

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YASNAC PCNC Programming Manual Chapter 3: Movement Control Commands
3.5.4 Second Miscellaneous Function (B Function) *
For positioning of an index table and other functions, B codes (Booo) are used; a B code consists
of a three-digit number and address B. If a B code is specified with axis move commands in the
same block, whether the B code is executed with the axis move commands simultaneously or it is
executed after the completion of the axis move commands is determined by the machine tool
builder. For details, refer to the instruction manuals published by the machine tool builder. The B
function and the T4-digit specification * are not selectable at the same time.
• B commands are modal and, once a B command is executed, it remains valid until
another B command is specified next.
• The standard interface of the B function outputs the signals to the machine in “3-digit
BIN” format.
• “B” is used to specify the address for B codes. If the B function is selected, B-axis
cannot be used to represent the 4th- or 5th-axis.