Siemens S5-135U/155U - Manual (Page 82)

4-16
System Manual
C79000-G8576-C199-06
4.2.1 Technical Description of the Expansion Units
The design of the EUs is comparable to that of the CC: they comprise a
compact housing with a type-dependant number of slots for modules and,
according to the type of EU, a cable duct, an integral power supply unit or
fan subassembly.
The mounting dimensions of the EU 183U, EU 184U and EU 185U are the
same as those of the 135U/155U CC (see Figs. 4-3 and 4-4). The EU 187U
has neither power supply unit nor cable duct. Its overall height and depth are
therefore different from those mounting dimensions of the other EUs.
SIMATICS5135U
440
225
266
Figure 4-6 Mounting Dimensions of the EU 187U
The following tables show which modules can be inserted at which slots.
Modules and slot assignments of the EU 183U
Slot No. 3 11 19 27 35 43 51 59 67 75 83 91 99 107 115 123 131 139 147 155 163
Module type
IM 300
IM 310, IM 314,
IM 318
IM 317
IM 312-3
DI, DQ,
AI, AQ
Signal pre-processing
modules (IPs)
See current Catalog ST 54.1 for slot numbers
Monitoring
module 313
Modules and Slot
Assignments of
the Expansion
Units
Central Controllers and Expansion Units Power Supply Units