$16
$16
$PNNVOJDBUJPOTNPEVMF
$PNNVOJDBUJPOTNPEVMF
4*."5*$$/
9
9
9
9
9
9
The possible congurations are listed below. Each table row corresponds to one conguration.
Redun‐
dancy
Slots for CPU Slots for communi‐
cations modules
Integrated connections
CPU 1 CPU 2 CM 1 CM 2 X1 X2 X1.1 X1.2 X2.1 X2.2
Redun‐
dant
Yes Yes - - PN PN TCP TCP TCP TCP
Yes Yes RS232 RS232 PN PN TCP TCP TCP TCP
Yes Yes RS485 RS485 PN PN TCP TCP TCP TCP
Non-re‐
dundant
Yes - - - PN - TCP TCP - -
Yes - RS232 - PN - TCP TCP - -
Yes - RS485 - PN - TCP TCP - -
PN = Plant network
TCP = Ethernet (for TCP/IP interface to third-party systems)
Plant engineering
4.1 SIMATIC CN 4100 communication system conguration
CN 4100 Communication System
Equipment Manual, 10/2021, A5E50871363-AA 19