Siemens SIMATIC S5 Manual page 157

IP 266
• G53: Cancel offsets
This function disables the zero offsets enabled in the traversing program.
These ZOs are disabled
ZOs enabled in the traversing program
ZOs enabled in the traversing program's
subroutines
• G54 - G57: Enable offset 1-4
A block containing one of these G functions enables a zero offset.
Figure 5-32 shows how zero offsets interact and how they can be cancelled.
EWA 4NEB 812 6057-02
Machine Data, Modes and Traversing Programs
Table 5-21. Effect of Function G53
Absolute ZOs set via mode 12
Relative ZOs set via mode 13
These ZOs are not disabled
5-85