Siemens SIMATIC Manual page 15

Step
8
Label the right-hand switch E124.2 and the coil A124.0 in the same way.
9 set the
File > Close menu command to close the editor, and
click Yes when you are prompted to save.
S7-300 Automation System CPU 31x: Commissioning
A5E00164278-02
Tasks Result:
The editor is closed and OB 1 is
saved.
13