Siemens M7-400 Benutzerhandbuch

6-2

S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

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.

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

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

Note the rules for connections in the section after next.

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