Siemens SIMATIC S5 Manual page 127

IP 266
Example: The drive is at the absolute position + 150 mm. Zero offsets of 300 mm,
- 200 mm, - 150 mm and 50 mm are to be carried out in succession.
Select mode 13.
Enter the value for the offset, including the sign.
Start the mode with the "Forward" or "Reverse" function. The
function specifies the direction of the offset.
Repeat the sequence for each of the zero offsets.
The coordinate system must respond as shown in Figure 5-25.
Note:
If you want to start the mode with the "Reverse" function, you must invert the
sign when you enter the offset value.
-50
ZO 300 forw.
-350
ZO -200 forw.
-150
ZO -150 forw.
0
ZO -50 reverse
-50
Figure 5-25. Relative Zero Offset with Different Values
EWA 4NEB 812 6057-02
Machine Data, Modes and Traversing Programs
Actual value
0 150
-300 -150
-100 0
50
50 200
0 150
s
300
0
200
350
s
300
5-55