Siemens SINUMERIK 840D sl Manual page 12

System overview
1.2 System configuration
With the TCU (Thin Client Unit), the operator panel can be installed as much as 100 meters
away. Up to 4 distributed operator panel fronts can be operated on an NCU or PCU 50.3.
Figure 1-1
The following components can be attached to the Control Unit:
● SINUMERIK operator panel front with TCU/PCU 50.3 and machine control
● SIMATIC CE panel
● Handheld units
● SIMATIC S7-300 I/O
● Distributed PLC I/Os using a PROFIBUS DP connection or PROFINET I/O (only applies
● Programming device
● SINAMICS 120 drive system
● Feed and main spindle motors
12
Typical topology of the SINUMERIK 840D sl complete system
panel/pushbutton panel
to NCU 720.2 PN and NCU 730.2 PN)
– 1FT/1FK/1FN/1FW6/1FE1/2SP1 synchronous motors
– 1PH/1PM asynchronous motors
Manual, 07/2007, 6FC5397-0AP10-2BA0
NCU