Siemens SINUMERIK 840D sl Function Manual page 828

Detailed description
2.3 Coordinate systems
2.3.4 Additive offsets
Zero offsets external
The "zero offset external" is an axial offset. Unlike with frames, no components for rotation,
scaling and mirroring are possible.
Figure 2-17
Setting the offset values
The offset values are set:
• PLC
• Via the operator panel
• NC Program
Activation of the offset values
The 0/1 edge of the following PLC signal activates the previously defined offset values:
DB31, ... DBX3.0 (accept external zero offset)
The 0/1 edge change is only evaluated in Automatic operating mode.
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Zero offset external between BCS and BZS
By describing system variables
From menu "Current zero offsets"
By assigning to system variable $AA_ETRANS[axis]
Basic logic functions: Axes, coordinate systems, frames (K2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0