Siemens S5-135U/155U - Expansion Units

4-15
System Manual
C79000-G8576-C199-06
4.2 Expansion Units
This chapter contains information on the application, installation and
operation of the following expansion units.
Order No. of Expansion Unit Power Supply or Fan Subassembly
6ES5 183-3UA13
6ES5 183-3UA22
6ES5 955-3LC42
6ES5 955-3NC42
6ES5 184-3UA11
6ES5 184-3UA21
230/120 V AC fan subassembly
24 V DC fan subassembly
6ES5 185-3UA13
6ES5 185-3UA23
6ES5 185-3UA33
6ES5 185-3UA43
6ES5 955-3LC42
6ES5 955-3NC42
6ES5 955-3LF42
6ES5 955-3NF42
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 EU 183 EU 184 EU 185 EU 187
Version
Own power supply yes no yes no
With fan yes yes yes no
With cable duct yes yes yes no
Number of slots 21 21 21 11
Pluggable modules:
DI/DQ
AI/AQ
IP without page
IP with page
CP
yes
yes
yes
no
no
yes
yes
yes
no
no
yes
yes
yes
yes
yes
yes
yes
no
no
no
With interrupt processing no no no no
Interface Modules
Central Controllers and Expansion Units Power Suppl
y
Unit
s