Siemens SINUMERIK 840D sl Manual page 31

Control Units with PROFINET
The following figure shows an NCU 720.2 PN/730.2 PN with its interfaces and control and
display elements (fault LEDs and status indicators).
CAUTION
The PROFINET interfaces of the integrated PLC 319-3 PN/DP are permanently assigned to
the option slot on the "PN NCUs". Forceful removal of the interface module will cause
defects, which can only be repaired at the factory.
Figure 4-2 Representation of the NCU 720.2 PN/730.2 PN
NCU
Manual, 03/2010, 6FC5397-0AP10-3BA0
Description
4.2 Illustration
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