Siemens SIMATIC S5 Manual page 124

Machine Data, Modes and Traversing Programs
Positive offset:
Offset 32767.999 - |Software start limit switch|
Example: The drive is at the absolute position 50 mm. This position is to be offset
in succession by 400 mm, -200 mm and 0 mm.
Select mode 12.
Enter the coordinate value for the new actual position.
Start the mode with the "Start" function.
Repeat the sequence for each zero offset.
The coordinate system must "respond" as shown in Figure 5-23. You can con-
trol the response by viewing the actual-value displays.
N H
A A
ZO 400 mm
ZO -200 mm
ZO 0 mm
= Limit switches (software, hardware, emergency end switch)
Figure 5-23. Zero Offset in Mode 12
5-52
Actual value
REF
0
350
-250
-50
IP 266
Forward
H N
A A
50
400
-200
0
EWA 4NEB 812 6057-02
s