Siemens SINUMERIK 840Di Function Manual page 758

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.
Fig. 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 PLC signal "Accept external zero offset" (DB31 to DBX3.0) activates the
previously defined offset values. The 0/1 edge change is only evaluated in Automatic
operating mode.
2-28
Zero offset external between BCS and BZS
By describing system variables
From menu "Current zero offsets"
By assigning to system variable $AA_ETRANS[axis]
Axis Types, Coordinate Systems, Frames (K2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0