Expansion Units - Siemens S5-135U/155U System Manual

4.2

Expansion Units

This chapter contains information on the application, installation and
operation of the following expansion units.
6ES5 183-3UA13
6ES5 183-3UA22
6ES5 184-3UA11
6ES5 184-3UA21
6ES5 185-3UA13
6ES5 185-3UA23
6ES5 185-3UA33
6ES5 185-3UA43
6ES5 187-5UA11
Interface Modules 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
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
System Manual
C79000-G8576-C199-06
Central Controllers and Expansion Units Power Supply Units
Order No. of Expansion Unit
EU 183
Version
yes
yes
yes
21
yes
yes
yes
no
no
no
Power Supply or Fan Subassembly
6ES5 955-3LC42
6ES5 955-3NC42
230/120 V AC fan subassembly
24 V DC fan subassembly
6ES5 955-3LC42
6ES5 955-3NC42
6ES5 955-3LF42
6ES5 955-3NF42
–
EU 184 EU 185 EU 187
no yes no
yes yes no
yes yes no
21 21 11
yes yes yes
yes yes yes
yes yes no
no yes no
no yes no
no no no
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