Interface modules
6
6.1
Common features of the interface modules
Function
Interface modules (a send IM and a receive IM) are required if one or more expansion racks
(ER) are to be connected to a central rack (CR). This configuration is described in the
Installation manual.
Configuration
Interface modules must always be used together. The send modules (send IMs) are inserted
in the CR, whilst the corresponding receive modules (receive IMs) are plugged into the series-
connected ER.
Table 6-1
Interface modules of the S7-400
Partner
Areas of application
IM 460-0
IM 461-0
Send IM for local link without PS transfer; with communication bus
Receive IM for local link without PS transfer; with communication bus
IM 460-1
IM 461-1
Send IM for local link with PS transfer; without communication bus
Receive IM for local link with PS transfer; without communication bus
IM 460-3
IM 461-3
Send IM for remote link up to 102.25 m; with communication bus
Receive IM for remote link up to 102.25 m; with communication bus
IM 460-4
IM 461-4
Send IM for remote link up to 605 m; without communication bus
Receive IM for remote link up to 605 m; without communication bus
Overview of the connections
Note the rules for connections in the section after next.
Table 6-2
Overview of the connections
Local connection
Remote connection
Send IM
460-0
460-1
460-3
460-4
Receive IM
461-0
461-1
461-3
461-4
Max. number of connectable EMs per line
4
1
4
4
Max. distance
5 m
1.5 m
102.25 m
605 m
V transfer
No
Yes
No
No
Max. current transfer per interface
-
5 A
-
-
Communication bus transmission
Yes
No
Yes
No
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
325