Siemens SIMATIC LS120 Instructions De Montage page 22

Reassembling the PG 740 PII
Reassemble the PG 740 PII by working through the steps described above in reverse order.
Further information is available in the manual for the PG 740 PII.
Note:
Check that the plug-in connections are correctly inserted when assembling the equipment.
10
4. When inserting drive holder, plug flex lead of LS120
drive into basic module alongside original floppy
socket
LS120 Installation Instructions
C79000-K7076-C010-01