Expansion Units - Siemens S5-155U System Manual

4.2

Expansion Units

Interface modules
System Manual
C79000-B8576-C199-03
This chapter contains information on the application, installation and
operation of the following expansion units.
Order No. of Expansion Unit
6ES5 183-3UA13
6ES5 183-3UA22
6ES5 184-3UA11
6ES5 184-3UA21
6ES5 185-3UA12
6ES5 185-3UA22
6ES5 185-3UA32
6ES5 185-3UA42
6ES5 187-5UA11
Various interface modules (IMs) are available for communication
between the CC and EUs and between EUs. Data transmission
between CC and EU, and therefore between CPU and I/O module, is
governed by the IM. A description of interface modules is given in
Chapter 7.
The following table contains information on available types of
expansion unit with their main features.
EU Type
Version
Own power supply
With fan
With cable duct
Number of slots
Pluggable modules:
DI/DQ
AI/AQ
IP without page
IP with page
CP
With interrupt processing

Expansion Units

Power Supply or
Fan Subassembly
6ES5 955-3LC41
6ES5 955-3NC41
230/120 V AC fan subassembly
24 V DC fan subassembly
6ES5 955-3LC41
6ES5 955-3NC41
6ES5 955-3LF41
6ES5 955-3NF41
-
EU 183 EU 184 EU 185 EU 187
yes no yes
yes yes yes
yes yes yes
21 21 21
yes yes yes
yes yes yes
yes yes yes
no no yes
no no yes
no no no
4
no
no
no
11
yes
yes
no
no
no
no
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