Siemens C79000 Z7076 C638 04 Benutzerhandbuch

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SIMATIC Box PC 620   Operating Manual
C79000-Z7076-C638-04

The SIMATIC Box PC 620 can be equipped with an LS120 drive as an alternative
to a floppy disk drive.

Larger volumes of data can be stored on LS120 data carriers than on a
1.44 MB floppy disk drive. The LS120 has the following features:

– The LS120 is compatible with a 1.44 MB floppy disk drive i.e. 1.44 Mbyte

disks can also be processed·

– An LS120 data carrier has a maximum data volume of 120 Mbytes.

– The LS120 is connected via an ATAPI(IDE) port.

Depending on the fitting position, the disks are inserted into the disk drive as
illustrated below:

Hole for emergency ejection (only LS120)

Access LED

Ejector

Ejector

Access LED

Figure 3-6 Handling Disks

When the LS120-drive is being accessed, the access indicator light is lit.

Emergency ejection is carried out in the same way with the LS120 as in the
CD–ROM drive. See Section 3.4.4. for details.

Risk of loss of data!

When the green access LED of the LS120-drive is lit, the ejector may not be
actuated.

LS120-drives are very sensitive to shocks of a non-permissible level. Shocks
during operation can lead to damage to the drive or the data carrier. You can find
the permissible values in the technical data in Section 7.1.