Siemens SINUMERIK 840D sl Function Manual page 919

2.5 Workpiecerelated actualvalue system
2.5.1 Overview
Definition
The term "workpiece-related actual-value system" designates a series of functions that
permit the user:
• To use a workpiece coordinate system defined in machine data after powerup.
• To retain the valid settings for the following after end of program for the next part
• To change between work coordinate system and machine coordinate system via the user
• To change the work coordinate system by operator action (e.g., changing the settable
2.5.2 Use of workpiecerelated actual-value system
Requirements, basic settings
The settings described in the previous Section have been made for the system.
The predefined setting after power-up of the HMI software is MCS.
Switchover to WCS
The change to the WCS via the user interface causes the axis positions relative to the origin
of the WCS to be displayed.
Switchover to MCS
The change to the MCS via the user interface causes the axis positions relative to the origin
of the MCS to be displayed.
Basic logic functions: Axes, coordinate systems, frames (K2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Features:
– No additional operations are necessary.
– Effective in JOG and AUTOMATIC modes
program:
– Active plane
– Settable frame (G54-G57)
– Kinematic transformation
– Active tool offset
interface.
frame or the tool offset).
Detailed description
2.5 Workpiecerelated actualvalue system
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