Siemens

Siemens 6ES7478-2BA00-0AC0 SIMATIC M7-400 MSM478 Expansion Module

SKU 6ES7478-2BA00-0AC0

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Siemens

  • Product No.: 6ES7478-2BA00-0AC0

  • Country of origin:Germany

  • Product Type: Expansion Module

  • Barcode: 85389091

  • Payment: T/T, Western Union

  • Weight: 1290g

  • Dimensions: 25.00 x 25.00 x 5.00 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The Siemens 6ES7478-2BA00-0AC0 is an MSM478 expansion module designed for seamless integration with the SIMATIC M7-400 automation system. This module enhances system capabilities by featuring a built-in hard disk drive with a storage capacity exceeding 500 MB, providing substantial space for process data and critical applications. Additionally, it incorporates a 3.5-inch floppy disk drive with a capacity of 1.44 MB, offering reliable support for legacy data transfer and backup tasks. The 6ES7478-2BA00-0AC0 is engineered for durability, ensuring stable performance in demanding industrial environments. Its robust construction and compatibility with Siemens systems make it a practical solution for expanding storage and data management within production lines or automated processes.

Features

  • Integrated Hard Disk Drive with >500 MB storage capacity
  • Built-in 3.5-inch Floppy Disk Drive with 1.44 MB capacity
  • Designed for SIMATIC M7-400 automation systems
  • Robust construction for industrial environments
  • Supports legacy data transfer and backup operations

Applications

  • Expanding local data storage in industrial automation systems.
  • Data management and archiving within production lines.
  • Automated processes requiring integrated hard disk and floppy disk capabilities.
  • Systems needing support for legacy data transfer or backup via floppy disk.

Technical Specifications

Manufacturer Siemens
Series SIMATIC M7-400
Product Type MSM478 Expansion Module
Hard Disk Drive Capacity >500 MB
Floppy Disk Drive Type 3.5-inch
Floppy Disk Drive Capacity 1.44 MB
Product Phase Obsolete
Package Dimensions (Calculated) 25.00 x 25.00 x 5.00 cm
Shipping Weight 1.29 kg
Commodity Code 85389091
Export Control Regulations (ECCN) N

Installation Guidelines

  1. De-energize System: Before installation, ensure that the SIMATIC M7-400 system and associated power supplies are completely de-energized to prevent electric shock or damage to components.
  2. Mounting: Securely mount the expansion module into the designated slot or rack position within the SIMATIC M7-400 system. Ensure all mechanical fasteners are tightened appropriately.
  3. Cable Connections: Connect any necessary data or interface cables to the module. Verify correct polarity and secure connections to prevent signal loss or intermittent operation.
  4. Grounding: Ensure proper grounding of the module and the overall system to minimize electromagnetic interference (EMI) and ensure safe operation.
  5. Power-Up and Verification: After all connections are secure, re-energize the system. Monitor system indicators and perform functional tests to confirm the module is recognized and operating correctly.
  6. Data Transfer: If utilizing the floppy disk drive, ensure proper media insertion and follow system procedures for data transfer or backup.

FAQ

What is the primary function of the 6ES7478-2BA00-0AC0?

This module expands the storage and data management capabilities of a SIMATIC M7-400 automation system by providing an integrated hard disk drive and a floppy disk drive.

What storage devices are included with this module?

The module includes a hard disk drive with over 500 MB capacity and a 3.5-inch floppy disk drive with 1.44 MB capacity.

Is this module compatible with other Siemens systems?

The 6ES7478-2BA00-0AC0 is specifically designed for integration with the Siemens SIMATIC M7-400 automation system.

What is the product phase of this module?

According to the technical specifications, this module is in the 'Obsolete' product phase.

View all FAQs →

Quantity
Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
Reviews
1 of 1
Only 5 item(s) left in stock
Quantity
View full details

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Germany

Technical knowledge

Selecting and Troubleshooting DIN Valve Connectors

A practical guide to selecting, wiring and diagnosing DIN-style valve connectors, including form identification, coil voltage, suppression, polarity, sealing, release-time effects and commissioning...

PLC or Microcontroller for Arc-Welding Motion Control?

A PLC and a microcontroller can both generate step-and-direction motion, but arc welding exposes major differences in EMC, I/O protection, diagnostics, maintainability, safety integration, and...

Piezo Pneumatic Valves: Precision, Power, and Design Limits

Piezo pneumatic valves offer low holding power and fine proportional control, but they are not universal solenoid replacements. This guide covers driver electronics, flow limits, contamination, fail...

Sensor Timer Functions: When Local Delay Helps PLC Logic

Built-in sensor timers can reject chatter, stretch short pulses, and simplify local timing—but they do not replace PLC diagnostics or safety logic. Learn how to apply on-delay, off-delay, and...

How to Reverse a Three-Phase Motor Without Creating a New Fault

Reversing a three-phase motor is more than swapping two leads. This guide covers phase sequence, VFD settings, reversing contactors, encoder feedback, load checks, lockout, and commissioning tests.

Grounded or Floating 24 VDC? A Control-Panel Decision Guide

Grounding one side of a 24 VDC supply can improve fault detection and voltage reference, while floating circuits support isolation. This guide explains bonding, noise, first-fault behavior, and...