Siemens S5-135U/155U - Manual (Page 292)

7-2
System Manual
C79000-G8576-C199-06
7.1 The 300 and 312 Interface Modules
The 300 and 312 interface modules are used for centralized connection of
I/O modules and signal preprocessing modules (IPs) to a CC via the
following expansion units (allowing for possible configurations):
S
EU 183U
S
EU 184U
S
EU 185U (only input/output modules)
S
EU 187U
S
ER 701-1
Additionally, you can utilize these IMs for secondary communication, i.e.
additional EUs can be connected in a centralized arrangement to an EU 183U
or EU 185U in distributed configuration. Up to four IM 300s can be used in
one CC, up to two of which may be IM 300-5s. You can use one IM 300 in
an EU 183U or EU 185U.
An IM 300 EU interface module is complemented by an IM 312 or
IM 306 CC interface module. Use the following IMs, depending on the
connected EU:
EU Interface Module EU Type CC Interface Module
IM 300-5 C
(6ES5 300-5CA11) EU 184U, EU 187U IM 312-5
IM 300-3
(6ES5 300-3AB11) EU 183U
EU 185U (only I/O
modules) IM 312-3
IM 300-5 L
(6ES5 300-5LB11) ER 701-1 IM 306
There are two versions of IM 312-3 and IM 312-5. They differ in the length
of permanently connected cable:
Order No. Cable Length
6ES5 312-5CA1X
6ES5 312-5CA2X 0.5 m
1.5 m
6ES5 312-3AB1X
6ES5 312-3AB3X 0.5 m
0.95 m
Application of the
IM 300 and IM 312
Interface Modules