Siemens SINAMICS S120 Equipment Manual page 30

Control Units
2.1 Introduction
With cover
Figure 2-1 Overview of the control unit 320 (CU320)
Note
The control unit, the option board, and the CompactFlash Card must be ordered separately.
If your application requires more than one control unit, the number can be increased
accordingly. The control units are then interconnected via PROFIBUS, for example.
A control unit communicates with the associated components (motor modules, line modules,
sensor modules, terminal modules, and so on) via the system-internal DRIVE-CLiQ
interface.
2-2
Option Board (optional)
CompactFlash Card
Equipment Manual for Control Units and Additional System Components
Equipment Manual, (GH1), 04.2004 Edition, 6SL3097-2AH00-0BP0
RDY RDY
DP1 DP1
OPT OPT
MOD MOD