Siemens 6ES7460-3AA01-0AB0 SIMATIC S7-400 IM 460-3 Send Interface Module

Overview

SIMATIC S7-400 • DISTRIBUTED RACK EXPANSION

6ES7460-3AA01-0AB0 SIMATIC S7-400 IM 460-3 Send Interface Module

Central-rack send interface for distributed S7-400 expansion with P-bus and C-bus transmission over links up to 102.25 m.

At a Glance

Brand	Siemens
Model	6ES7460-3AA01-0AB0
Product Type	Send interface module
Core Function	Central-to-expansion rack coupling
Compatible Series	SIMATIC S7-400

Central-rack interface

The send module installs in the central controller and connects to IM 461-3 receive modules.

Two expansion lines

Up to eight expansion racks are possible, with up to four racks on each interface.

Remote rack connection

The total connection length from the first to the last interface module can reach 102.25 m.

Product Overview

6ES7460-3AA01-0AB0 is the S7-400 IM 460-3 send interface for a distributed rack arrangement. It transmits both the peripheral bus and communication bus from a central controller to compatible receive interfaces.

The matching IM 461-3 receive module and 468-1 connecting cables form the expansion link. Cable length and rack-number settings are part of commissioning this arrangement.

Ordering focus: Pair the central send interface with IM 461-3 receivers and size each expansion line by its total cable length.

Key Functions

Distributed rack expansion

The central controller can reach up to eight expansion racks, arranged with up to four per interface.

Bus continuation

Both the P-bus and C-bus are carried to the remote expansion arrangement.

Configurable link distance

The distance setting should be as close as possible to the total line length while remaining longer than the actual cable run.

Official Specifications

Backplane supply	5 V DC
Maximum backplane input current	1,550 mA
Maximum power loss	7.75 W
Maximum first-to-last interface cable length	102.25 m
Expansion capacity	Up to 8 racks, up to 4 per interface
Transmitted buses	P-bus and C-bus
Module width	25 mm
Module height	290 mm
Module depth	280 mm
Approximate module weight	630 g

Official source:Siemens S7-400 module data manual.

Frequently Asked Questions

Which receive module should I pair with 6ES7460-3AA01-0AB0?

Use the matching IM 461-3 receive interface for this distributed coupling arrangement.

Can one 6ES7460-3AA01-0AB0 connect all eight expansion racks?

The send interface supports up to eight expansion racks with no more than four on each interface line.

How should I calculate cable length for 6ES7460-3AA01-0AB0?

Add the cables in each line and keep the total first-to-last interface length within 102.25 m.

Which cable family connects 6ES7460-3AA01-0AB0 to its receivers?

Use the 468-1 connecting cable family for the IM 460-3 and IM 461-3 connection.

Where does 6ES7460-3AA01-0AB0 fit in the rack arrangement?

The send interface is installed in the central controller while receive interfaces are installed in the expansion racks.

How do I set the distance selector associated with 6ES7460-3AA01-0AB0?

Choose a setting close to the summed cable length but longer than the actual line length.

What must be switched off before changing an expansion-rack number with 6ES7460-3AA01-0AB0?

Switch the affected expansion-rack power supply to its zero-output position before changing the DIP-switch number and switching it on again.

Compatibility & Ordering Notes

Before ordering 6ES7460-3AA01-0AB0: Build the distributed connection with IM 461-3 receive interfaces, the correct 468-1 cable lengths and suitable line termination for the complete expansion arrangement.

Expansion-line preparation

• Install the send interface in the central S7-400 controller.
• Use IM 461-3 receive modules and 468-1 connecting cables.
• Keep no more than four expansion racks on each interface line.
• Set the link distance above the actual summed cable length.

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