Siemens SINUMERIK 840D sl Function Manual

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The notation of the characters in the string (upper or lower case) is arbitrary. Any numberof spaces or tabs (white spaces) can be inserted.The individual meanings are as follows:C: Adapter or tool base dimension (whichever of the two alternative components isactive for the tool in use)E: Setup offsetsG: GeometryS: Sum offsetsW: Wear_CORCOMP INTThis parameter specifies the component(s) of the two data sets that are to be described. Ifthis parameter is not specified then its value is 0.Meaning of the numerical values:0: The offset value _CORVAL[0] refers to the geometry axis transferred in param‐eter _GEOAX in the workpiece coordinate system, i.e. the offset value must becalculated in the designated tool components so that, taking account all the pa‐rameters that can influence the tool length calculation, as a result, a change ofthe total tool length by the specified value in the specified axis direction is ob‐tained.This change should be achieved by the correction of the component specified in_COMP and the symbolic algorithm specified in _CORMODE (see the followingparameters). The resulting correction can therefore have an effect on all threeaxis components.1: Like 0, however, vectorial. The content of vector _CORVAL refers to abscissa,ordinate, applicate in the workpiece coordinate system (WCS).The subsequent parameter _GEOAX is not evaluated.2: Vectorial offset, i.e. L1, L2 and L3 can change simultaneously.In contrast to the versions from 0 and 1, the offset values contained in _CORV‐AL refer to the coordinates of Val1 components (see following parameter _COR‐MODE) of the tool.Any possible inclination of an existing tool compared with the workpiece coordi‐nate system has no influence on the offset.3 - 5: Correction of tool lengths L1 to L3 ($TC_DP3 to $TC_DP5) or the correspondingvalues for wear, setting up or additive offsets.The offset value is contained in _CORVAL[0]. It is measured in the coordinatesof the Val1 component (see following parameter _CORMODE) of the tool. Anypossible inclination of an existing tool compared with the workpiece coordinatesystem has no influence on the offset.6: Correction of the tool radius ($TC_DP6) or the corresponding values for wear,setting up or additive offsets.7 – 11: Correction of $TC_DP7 to $TC_DP11 or the corresponding values for wear,setting up or additive offsets. These parameters are treated just like the toolradius.W1: Tool offset18.12 Working with tool environmentsBasic Functions1528 Function Manual, 01/2015, 6FC5397-0BP40-5BA2