Siemens SINUMERIK 840DE

03.06
1.1 System configuration
1-12
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D Configuring Manual NCU (PHD) – 03.06 Edition
The NCU can communicate with the peripheral components via numerous inter-
faces. These are shown in Fig. 1-2 with their connections to the NCU and ex-
plained in more detail in Table 1-1:
NCU terminal block
IN OUT
X20 X21
Distribution
box
SIMATIC
S7-300
Handheld unit
Type B-MPI
X3
IM
X2
or
2x sensor
2x handwheel
PG / PC, e.g. Field PG
–X102
–X112
–X111
–X121
X130B X130A
–X172
–X101
NCU
–X122
Cable
distribut
or
PROFIBUS DP I/Os
Reserved for service
X1
X2
X4
: Optional
MPI cable
*)
SIMODRIVE
components
MPI bus
for PCU / MCP (see Fig. 1-3)
*) MPI cable or MPI PG cable
Memory card
(PCMCIA)
Ä
Ä
Handheld terminal
HT 6
or
Mini-
handheld unit
4x digit. input
4x digit. output
Fig. 1-2 SINUMERIK 840D system overview
Connection
configuration
1 S
y
stem Overview