Siemens SINUMERIK 840D sl Programming Manual page 657

Job planning

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Table of Contents

The linear axis is an axis which, in contrast to a rotary axis, describes a straight line.

Linear interpolation

The tool travels along a straight line to the destination point while machining the workpiece.

For the CPU 314 of the -> PLC, the load memory is equal to the -> Work memory .

With the look ahead function, a configurable number of traversing blocks is read in advance

in order to calculate the optimum machining velocity.

Control operating area

Machine axes

Axes which exist physically on the machine tool.

Machine control panel

An operator panel on a machine tool with operating elements such as keys, rotary switches

etc. and simple indicators such as LEDs. It is used to control the machine tool directly via the

Machine coordinate system

System of coordinates based on the axes of the machine tool.

Machine zero

A fixed point on the machine tool, which can be referenced by all (derived) measuring

Machining channel

Via a channel structure, parallel sequences of movements, such as positioning a loading

gantry during machining, can shorten unproductive times. Here, a CNC channel must be

regarded as a separate CNC control system with decoding, block preparation and

interpolation.

Macro techniques

Grouping of a set of instructions under a single identifier. The identifier in the program refers

to the grouped set of instructions.

Job planning

Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0