Siemens SINUMERIK 840D sl Programming Manual page 916

Glossary
Automatic
Operating mode of the control (block sequence operation according to DIN): Operating mode
for NC systems in which a → subprogram is selected and executed continuously.
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 feed rate.
Axis address
See → Axis identifier
Axis identifier
Axes are identifed using X, Y, and Z as defined in DIN 66217 for a dextrorotatory, 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
916
Auxiliary axes are not involved in actual machining, e.g. tool feeder, tool magazine.
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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