Glossary
Turning, Milling, Nibbling
442 Function Manual, 11/2012, 6FC5397-1CP10-5BA0
Auxiliary functions
Auxiliary functions enable part programs to transfer → parameters to the → PLC, which then
trigger reactions defined by the machine manufacturer.
Axes
In accordance with their functional scope, the CNC axes are subdivided into:
● Axes: interpolating path axes
● Auxiliary axes: non-interpolating feed and positioning axes with an axis-specific feedrate.
Auxiliary axes are not involved in actual machining, e.g. tool feeder, tool magazine.
Axis identifier
Axes are identified using X, Y and Z as defined in DIN 66217 for a right-handed, right-angled
→ coordinate system.
Rotary axes rotating around X, Y and Z are identified using A, B and C. Additional axes
situated parallel to the specified axes can be designated using other letters.
Axis name
See → Axis identifier
Backlash compensation
Compensation for a mechanical machine backlash, e.g. backlash on reversal for ball screws.
Backlash compensation can be entered separately for each axis.
Base axis
Axis whose setpoint or actual value position forms the basis of the calculation of a
compensation value.
Basic Coordinate System
Cartesian coordinate system which is mapped by transformation onto the machine
coordinate system.
The programmer uses axis names of the basic coordinate system in the → part program. The
basic coordinate system exists parallel to the → machine coordinate system if no
→ transformation is active. The difference between the two coordinate systems lies in the
→ axis identifiers.
Baud rate
Rate of data transfer (Bit/s).
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