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Siemens 6ES7241-1AH32-0XB0 CM 1241 Communication Module

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Siemens 6ES7241-1AH32-0XB0

by Siemens

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OverviewEnhance your industrial automation setups with the Siemens 6ES7241-1AH32-0XB0 CM 1241 Communication Module, designed for dependable serial connectivity. This RS485 interface module seamlessly integrates with the SIMATIC S7-1200 Programmable Logic Controller (PLC) series, expanding its capacity for data exchange with diverse external equipment. From HMIs and VFDs to barcode readers and older RS485 systems, the 6ES7241-1AH32-0XB0 acts as a vital link for modernizing and extending your control infrastructure. Its compact form factor and Siemens' trusted industrial quality guarantee peak performance and straightforward installation, making it essential for challenging industrial environments. Empower your S7-1200 PLC with adaptable communication options for superior control and monitoring.Key Features Integrated RS485 Interface: Offers potent serial communication for various industrial uses. Optimized for SIMATIC S7-1200 PLCs: Developed for complete compatibility and smooth integration with your existing S7-1200 setup. Versatile Protocol Support: Supports both ASCII and Modbus RTU protocols for flexible data interchange. High Transmission Rate: Achieves data speeds up to 115.2 kbps, ensuring rapid and effective communication. Point-to-Point & Multipoint Connections: Facilitates adaptable network configurations, connecting to multiple devices. DIN Rail Mount & Compact Design: Mounts easily next to the CPU, conserving valuable cabinet area. Robust Industrial Design (IP20): Constructed to endure demanding industrial conditions, ensuring trustworthiness and longevity. Technical Specifications Part Number: 6ES7241-1AH32-0XB0 Series: SIMATIC S7-1200 Interface: RS485 Transmission Rate: Up to 115.2 kbps Communication Protocols: ASCII, Modbus RTU Power Supply: 24V DC (via S7-1200 backplane) Mounting: DIN rail, adjacent to CPU Connection Type: 9-pin Sub-D port Protection Rating: IP20 LED Indicators: Comprehensive status and diagnostics Supported Topologies: Point-to-point and multipoint Max Cable Length: Up to 1,000 m (distance varies with baud rate and cable quality) Dimensions (W x H x D): Approx. 38 x 100 x 75 mm Weight: Approx. 150 g Operating Temperature: 0°C to +55°C Certifications: CE, UL, RoHS compliant Applications Enhanced HMI and VFD Communication Establish dependable serial data links with Human-Machine Interfaces and Variable Frequency Drives. Integration with Legacy Systems Effortlessly connect your S7-1200 PLC to older RS485-based industrial equipment. Distributed Automation & Control Utilize as a communication bridge in intricate, distributed automation networks. Machine-Level Networking & Data Acquisition Facilitate efficient data collection and networking at the machine level. Barcode Reader & Sensor Integration Simplify the integration of various RS485-enabled sensors and barcode scanners. Building Management Systems Enhance connectivity for various devices within building automation infrastructures. Why Choose Unmatched Siemens Reliability: Benefit from Siemens' legendary engineering and sturdy construction, ensuring long-term operational stability. Effortless S7-1200 Integration: Designed for true plug-and-play functionality, with full support in the TIA Portal engineering framework for quick setup. Expanded Communication Capabilities: Significantly broadens your S7-1200 PLC's communication options, connecting to a wider range of industrial devices. Cost-Effective System Expansion: A highly efficient solution for adding serial communication without needing to replace existing controllers. Global Availability & Support: Readily available with comprehensive Siemens support for worldwide applications. Order NowUpgrade your industrial communication capabilities today with the Siemens 6ES7241-1AH32-0XB0 CM 1241 Communication Module. Contact us for pricing and availability, or to speak with a specialist about your specific application needs.FAQ What exactly is the Siemens 6ES7241-1AH32-0XB0? It is a CM 1241 communication module that provides an RS485 interface for Siemens SIMATIC S7-1200 PLCs, enabling serial data exchange with other industrial devices. Which PLC series is this module compatible with? This module is specifically engineered for seamless integration with the Siemens SIMATIC S7-1200 series of Programmable Logic Controllers. What communication protocols does it support? The Siemens 6ES7241-1AH32-0XB0 supports both ASCII and Modbus RTU protocols for flexible data exchange. What are its primary uses? Key applications include enhancing communication with HMIs and VFDs, integrating with legacy RS485 systems, supporting distributed automation, and connecting barcode readers and sensors. How fast can it transmit data? This module can achieve data transmission rates of up to 115.2 kbps, ensuring efficient and rapid communication within your automation system.

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PRODUCT DETAILS

Siemens 6ES7241-1AH32-0XB0

Overview

This is a genuine Siemens component from the Siemens PLCs family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Siemens catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Siemens automation ecosystem
  • Engineered to integrate inside Siemens PLCs installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Siemens equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Siemens catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Siemens platform with documented conversion notes for the Siemens PLCs family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Part Number: 6ES7241-1AH32-0XB0
  • Series: SIMATIC S7-1200
  • Interface: RS485
  • Transmission Rate: Up to 115.2 kbps
  • Communication Protocols: ASCII, Modbus RTU
  • Power Supply: 24V DC (via S7-1200 backplane)
  • Mounting: DIN rail, adjacent to CPU
  • Connection Type: 9-pin Sub-D port
  • Protection Rating: IP20
  • LED Indicators: Comprehensive status and diagnostics
  • Supported Topologies: Point-to-point and multipoint
  • Max Cable Length: Up to 1,000 m (distance varies with baud rate and cable quality)
  • Dimensions (W x H x D): Approx. 38 x 100 x 75 mm
  • Weight: Approx. 150 g
  • Operating Temperature: 0°C to +55°C
  • Certifications: CE, UL, RoHS compliant

Applications

  • Enhanced HMI and VFD Communication

    Establish dependable serial data links with Human-Machine Interfaces and Variable Frequency Drives.

  • Integration with Legacy Systems

    Effortlessly connect your S7-1200 PLC to older RS485-based industrial equipment.

  • Distributed Automation & Control

    Utilize as a communication bridge in intricate, distributed automation networks.

  • Machine-Level Networking & Data Acquisition

    Facilitate efficient data collection and networking at the machine level.

  • Barcode Reader & Sensor Integration

    Simplify the integration of various RS485-enabled sensors and barcode scanners.

  • Building Management Systems

    Enhance connectivity for various devices within building automation infrastructures.

Why Choose the 6ES7241-1AH32-0XB0?

  • Unmatched Siemens Reliability: Benefit from Siemens' legendary engineering and sturdy construction, ensuring long-term operational stability.
  • Effortless S7-1200 Integration: Designed for true plug-and-play functionality, with full support in the TIA Portal engineering framework for quick setup.
  • Expanded Communication Capabilities: Significantly broadens your S7-1200 PLC's communication options, connecting to a wider range of industrial devices.
  • Cost-Effective System Expansion: A highly efficient solution for adding serial communication without needing to replace existing controllers.
  • Global Availability & Support: Readily available with comprehensive Siemens support for worldwide applications.

Availability & Shipping

  • In stock: 6ES7241-1AH32-0XB0 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 6ES7241-1AH32-0XB0 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Siemens

It is a CM 1241 communication module that provides an RS485 interface for Siemens SIMATIC S7-1200 PLCs, enabling serial data exchange with other industrial devices.

Machine down? We ship parts the same day.

New, surplus, and refurbished Siemens inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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