Siemens SIMATIC PC 670 - Functional Units Visible after Opening the Device

Maintaining and Extending the Computing Unit
Release 04/02
4-5
Panel PC 670 Computing Unit, Equipment Manual
4.1.3 Functional Units Visible After Opening the Device
View
The function units become visible after removing the top cover of the unit and
removing the hard disk module.
Power supply unit
ProcessorWiring backplane Memory expansion module
Disk drive or LS 240
Fan
Figure 4-2 Computing unit open