HEIDENHAIN TNC 320 (340 55x-04) - Manual (Page 222)

222 Programming: Q Parameters
8.1 Pr
inciple and Ov
erview
8.1 Principle and Overview
You can program entire families of parts in a single part program. You
do this by entering variables called Q parameters instead of fixed
numerical values.
Q parameters can represent information such as:
„ Coordinate values
„ Feed rates
„ Spindle speeds
„ Cycle data
Q parameters also enable you to program contours that are defined
with mathematical functions. You can also use Q parameters to make
the execution of machining steps depend on logical conditions. In
conjunction with FK programming you can also combine contours that
do not have NC-compatible dimensions with Q parameters.
Q4
Q2
Q3 Q1
Q5
Q6