Interface Modules
6-2
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
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 units (EU) are to be connected to a central controller (CC). This
configuration is described in the Installation Manual, Chapter 4.
Configuration
Interface modules must always be used together. The send modules (send IMs)
are inserted in the CC, whilst the corresponding receive modules (receive IMs) are
plugged into the series-connected EU.
Table 6-1 Interface Modules of the S7-400
Partner
Areas of Application
IM 460-0 Send IM for local link without PS transfer; with communication bus
IM 461-0 Receive IM for local link without PS transfer; with communication bus
IM 460-1 Send IM for local link with PS transfer; without communication bus
IM 461-1 Receive IM for local link with PS transfer; without communication bus
IM 460-3 Send IM for remote link up to 102 m; with communication bus
IM 461-3 Receive IM for remote link up to 102 m; with communication bus
IM 460-4 Send IM for remote link up to 605 m; without communication bus
IM 461-4 Receive IM for remote link up to 605 m; without communication bus
Overview of the Properties of the Connections
Note the rules for connections in the section after next.
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
chain
4 1 4 4
Max. distance 3 m 1.5 m 102.25 m 605 m
5 V transfer No Yes No No
Max. current transfer per interface – 5 A – –
Communication bus transmission Yes No Yes No
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