Siemens SIMATIC S5 Manual page 123

IP 266
Note:
If mode 12 is restarted, the old ZO is replaced by the new ZO.
The IP 266 also provides other options for specifying a zero offset. The available
options are listed in Table 5-14.
Table 5-14. IP 266 Zero Offset Options
Traversing
ZO Mode
program
abso- 12
lute
rela- 13
tive
G54 to G57
Once set, a zero offset is retained until
• it is overwritten by a new value
• reset via mode 14
or
• the module's power supply is switched off.
Note the following when specifying a zero offset:
Negative offset:
- Offset 32767.999 - |Software end limit switch|
EWA 4NEB 812 6057-02
Machine Data, Modes and Traversing Programs
Assigns a coordinate value to the current actual position.
This coordinate value is displayed on the programmer as the new
actual position.
Offsets a coordinate value by a specifiable value
Offset in a traversing program by the values specified in the
machine data.
These offsets are reset when the traversing program is exited.
Effect
5-51