3 Design
3.1 System overview
Operator panel front: OP 012
Industrial PC: PCU 50
PC/programming
device, e.g. PG740
Fig. 3-2
System overview: PCU components (as a diagram)
3-126
PS/2 mouse
CD-ROM
drive
SITOP POWER
VGA monitor
Standard 24V/10A
SIEMENS
PS/2 keyboard
Diskette
drive 3.5''
SITOP DC-UPS Module 15 with
SITOP POWER lead-acid module
SIEMENS
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03
Optional