Siemens 6ES7461-1BA01-0AA0 SIMATIC S7-400 IM 461-1 Receive Interface Module

Overview

SIEMENS SIMATIC S7-400

6ES7461-1BA01-0AA0 SIMATIC S7-400 IM 461-1 Receive Interface Module

Receive interface for short-distance S7-400 expansion with P-bus transmission and power transfer from an IM 460-1, without C-bus transmission.

At a Glance

Brand	Siemens
Model	6ES7461-1BA01-0AA0
Product Type	IM 461-1 receive interface module
Core Function	Central expansion-rack coupling
Compatible Series / Application	S7-400 central expansion systems

Matched sender

Use exclusively with the IM 460-1 in the central controller.

Short-distance coupling

Connect the expansion rack over a maximum of 1.5 m.

Rack power

Supply the expansion rack with 5 V at up to 5 A.

Product Overview

6ES7461-1BA01-0AA0 provides the receive side of a centrally coupled SIMATIC S7-400 expansion rack, operating with an IM 460-1 send interface in the central controller.

The connection transfers the P bus and the expansion-rack power supply, making a separate power-supply module unnecessary for the supported rack arrangement; C-bus transmission is not provided.

Ordering focus: Pair the receiver with an IM 460-1 and the correct 468-3 connecting cable, then check the expansion rack’s 5 V load against the 5 A limit.

Key Functions

Central P-bus expansion

The interface carries P-bus data to a nearby expansion rack over a connection of up to 1.5 m.

Power transfer

The receiver supplies expansion modules with 5 V at a maximum of 5 A through the paired interface connection.

Rack identification and diagnostics

A coding switch sets the rack number, and three LEDs provide fault indication.

Official Specifications

Maximum coupling distance	1.5 m
Backplane current at 5 V DC	120 mA maximum
Maximum module power loss	600 mW
Expansion-rack power output	5 V DC; maximum 5 A
Incoming cable interface	1 input for a 468-3 connecting cable
Fault indicators	3 LEDs
Rack-number selection	Coding switch
Permitted expansion racks	UR1, UR2, ER1 and ER2
Module dimensions (W × H × D)	25 × 290 × 217 mm
Approximate weight	610 g

Official source:Siemens technical specifications and product manual

Frequently Asked Questions

Which send interface must I pair with 6ES7461-1BA01-0AA0?

The receiver can only be used with an IM 460-1 in the central controller.

Can 6ES7461-1BA01-0AA0 extend a rack over 5 m?

The maximum central coupling distance for this receiver is 1.5 m.

Do I need a separate power supply in the expansion rack with 6ES7461-1BA01-0AA0?

The paired interface supplies the expansion rack with 5 V at up to 5 A, allowing its separate power-supply module to be omitted.

Can I transfer C-bus data through 6ES7461-1BA01-0AA0?

This receiver transfers the P bus without C-bus transmission.

Which racks accept 6ES7461-1BA01-0AA0?

The receiver can be inserted into UR1, UR2, ER1 and ER2 expansion racks.

Which cable lengths can I order for 6ES7461-1BA01-0AA0?

The 468-3 connection is available in 0.75 m and 1.5 m versions for the paired interfaces.

How do I assign the expansion-rack number on 6ES7461-1BA01-0AA0?

The module’s coding switch is used to set the rack number.

Compatibility & Ordering Notes

Before ordering 6ES7461-1BA01-0AA0: Use this receiver for short-distance expansion with an IM 460-1 sender and a 468-3 cable, while keeping the expansion rack within its supplied-power capacity.

Compatibility Checklist for 6ES7461-1BA01-0AA0

• Use a 0.75 m 6ES7468-3AH50-0AA0 or 1.5 m 6ES7468-3BB50-0AA0 connecting cable.
• Match the rack-number coding to the intended expansion rack.
• Calculate the expansion modules’ total 5 V current demand within 5 A.
• Keep applications requiring C-bus transfer outside this coupling arrangement.

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