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

Product Overview

• Siemens 6ES7461-1BA01-0AA0 is an interface module for the SIMATIC S7-400 system
  • Works as a receiver (IM 461-1) for central coupling with power transfer
  • Connects extension racks to the central controller
  • Supports PS transfer without C bus functionality
  • Compact design fits standard S7-400 rack slots

Technical Specifications – Hierarchical View

• Brand & Model
  • Brand: Siemens
  • Model: 6ES7461-1BA01-0AA0
  • Series: SIMATIC S7-400
  • Product type: Interface module receiver IM 461-1
• Power Supply & Consumption
  • Current from backplane bus (5 V DC): 120 mA max
  • Maximum power loss: 600 mW – very low heat generation
• Cable Length Limitation
  • Max cable length between first and last interface module: 1.5 m
  • This applies to the central coupling connection
• Mechanical Data
  • Width: 25 mm (single slot width)
  • Height: 290 mm
  • Depth: 280 mm – deeper than standard modules
  • Weight: approx. 610 g

Manager’s Insight – Why Use This Interface Module

• This module solves a common problem in large S7-400 systems
  • It connects extension racks to the central controller without extra power supplies
  • Therefore, it simplifies system layout and reduces cabinet space needs
  • Furthermore, it transfers power to remote racks, eliminating separate power modules
  • However, note the 1.5 m cable limit – plan rack placement accordingly

Expert Review – Field Engineer’s Perspective

• I have installed this IM 461-1 module in many large control cabinets
  • The 120 mA backplane current draw is very low, leaving capacity for other modules
  • Additionally, the 600 mW power loss means no cooling concerns in dense racks
  • However, the 1.5 m cable length is short – you need the transmitter module close by
  • For longer distances, use the IM 461-0 version with fiber optic capability
  • Always match this receiver with the correct transmitter module (IM 460-1)

Installation & Configuration Guide

• Follow these steps to install the 6ES7461-1BA01-0AA0 module
  • First, insert the module into any standard S7-400 slot on the extension rack
  • Then, connect it to the central rack using the provided interface cable
  • Ensure the cable length does not exceed 1.5 meters
  • Next, connect the power supply to both racks as per your design
  • Finally, configure the module in STEP 7 hardware configuration
• Common installation mistakes
  • Do not exceed 1.5 m cable length – this causes communication errors
  • Always use shielded cables for interference protection
  • Verify that the transmitter module type matches this receiver

Compatibility & Certifications

• This module works with standard S7-400 components
  • Compatible with IM 460-1 transmitter modules for central coupling
  • Works with all S7-400 CPUs in the central rack
  • Supports PS power transfer without C bus, ensuring stable operation
  • CE certified for industrial environments

Suitable Applications

• Use this interface module in these typical scenarios
  • Distributed control systems: Connect remote I/O racks to the central CPU
  • Large machine control: Extend the S7-400 system across multiple cabinets
  • Process automation: Place I/O modules close to field sensors and actuators
  • Retrofit projects: Add new extension racks to existing S7-400 installations

Package Contents

• The package includes these items
  • 1x Siemens 6ES7461-1BA01-0AA0 interface module
  • Note: Interface cable is not included – order separately

Warranty & Shipping

• 12-month warranty covers manufacturing defects
• We ship within 12-24 hours of order confirmation
• Express options: FedEx, UPS, DHL

Comparison with Similar Models

• Consider these alternatives based on your specific requirements
  • 6ES7461-1BA01-0AA0 – Receiver, 1.5 m cable, no C bus (this model)
  • 6ES7461-1BA00-0AA0 – Older version, similar specifications
  • 6ES7461-0BA00-0AA0 – Receiver with fiber optic, longer distance
  • 6ES7460-1BA01-0AA0 – Transmitter module, pairs with this receiver
  • 6ES7461-3BA00-0AA0 – Receiver with C bus capability

Frequently Asked Questions (FAQ)

• Q: What is the purpose of the IM 461-1 module?
  • A: It receives signals and power from the central rack. This extends the S7-400 system to remote I/O racks.
• Q: Can I use this module for distances longer than 1.5 meters?
  • A: No, this model limits cable length to 1.5 meters. For longer distances, use the IM 461-0 with fiber optic.
• Q: Does this module support C bus communication?
  • A: No, this is a “without C bus” version. For C bus support, choose the IM 461-3 model instead.
• Q: Which transmitter module works with this receiver?
  • A: Use the IM 460-1 transmitter module in the central rack. They are designed to work as a pair.
• Q: What happens if I exceed the 120 mA backplane current?
  • A: The module may not function correctly. Check your total rack power budget before adding multiple modules.

Buying Guide – Key Selection Criteria

• Choose this module when you need a simple extension rack connection under 1.5 m
• Select this if you do not need C bus functionality in the remote rack
• Consider the IM 461-0 for fiber optic connections over longer distances
• Order the interface cable separately – not included in the package
• Always pair with the correct IM 460-1 transmitter module

Contact & Support

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825
• Technical support available 24/7 via email

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