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Siemens 6ES7241-1CH31-0XB0 SIMATIC S7-1200 Communication Module

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Description

This SIMATIC S7-1200 Communication Module (6ES7241-1CH31-0XB0) adds versatile RS485 serial communication to your PLC, enabling broad connectivity with various industrial devices. For a vast array of industrial automation products, Gold Rayline stands as your reliable supplier.

The Siemens 6ES7241-1CH31-0XB0 is a SIMATIC S7-1200 CM 1241 Communication Module providing RS485 serial communication for flexible network integration.

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Product Overview

The Siemens 6ES7241-1CH31-0XB0 is a vital extension module for the SIMATIC S7-1200 series of programmable logic controllers, functioning as a Communication Module CM 1241 with an RS485 interface. This module is indispensable when the S7-1200 CPU needs to communicate with external devices that rely on serial data exchange. The integrated RS485 port is a robust and widely adopted standard in industrial automation, known for its ability to transmit data reliably over longer distances and in electrically noisy environments.

A key strength of the 6ES7241-1CH31-0XB0 lies in its support for various communication protocols. It can operate as both a Modbus RTU master or slave, allowing seamless integration with Modbus-compatible devices like smart sensors, energy meters, or other control systems. Furthermore, it supports the USS protocol for controlling Siemens MICROMASTER and SINAMICS drives, simplifying drive integration. For custom communication needs, the module also supports freeport communication, enabling flexible data exchange with devices using proprietary serial protocols. Its compact design ensures efficient use of space within control cabinets, and its easy integration into the TIA Portal engineering environment makes configuration straightforward, significantly enhancing the S7-1200’s connectivity options.


Specifications

Article Number6ES7241-1CH31-0XB0Product TypeCommunication Module
Net Weight0.1 kg (Estimated)SeriesSIMATIC S7-1200
Module TypeCM 1241Interface TypeRS485
Number of Ports1Supported ProtocolsModbus RTU (Master/Slave), USS (Master), Freeport
Baud RateUp to 115.2 Kbit/sElectrical IsolationYes
Power ConsumptionMax. 1 WTerminal TypeScrew-type terminal block
Operating Temp.-20 °C to +60 °CDimensions (H x W x D)Approx. 100 mm x 30 mm x 75 mm
Country of OriginGermany

Note: For precise application and detailed technical specifications for the 6ES7241-1CH31-0XB0 SIMATIC S7-1200 Communication Module CM 1241 (RS485), please consult the relevant SIMATIC S7-1200 System Manual for exact wiring diagrams, protocol configurations, and programming details.


Features

The Siemens 6ES7241-1CH31-0XB0 SIMATIC S7-1200 Communication Module offers the following key features:

  • RS485 Interface: Provides a robust serial communication port for industrial applications.
  • Multi-Protocol Support: Compatible with Modbus RTU (master/slave), USS protocol (master), and Freeport communication.
  • Versatile Connectivity: Enables communication with a wide range of external devices like drives, HMIs, and sensors.
  • Electrical Isolation: Ensures protection against electrical interference and ground loops for reliable data transmission.
  • Compact Design: Space-saving form factor for efficient integration into control cabinets.
  • Easy Configuration: Seamlessly integrates with the TIA Portal engineering environment for straightforward setup.
  • High Baud Rate: Supports communication speeds up to 115.2 Kbit/s for efficient data exchange.
  • Diagnostic Capabilities: Provides basic diagnostic information for network troubleshooting.

Applications

The Siemens 6ES7241-1CH31-0XB0 SIMATIC S7-1200 Communication Module CM 1241 (RS485) is widely used in various industrial automation applications requiring reliable serial communication:

  • Modbus RTU Communication: Connecting S7-1200 PLCs to Modbus RTU devices such as energy meters, temperature controllers, or distributed I/O.
  • Drive Control: Controlling variable frequency drives (VFDs) and servo drives using the USS protocol.
  • Integration of Legacy Systems: Connecting to older industrial equipment that only supports RS485 serial communication.
  • Barcode Reader Integration: Interfacing with barcode readers for material tracking and logistics applications.
  • Data Exchange with SCADA/HMI Systems: Providing a serial communication link for data logging and visualization.
  • Sensor and Actuator Integration: Connecting to smart sensors or actuators that utilize RS485 for control and data acquisition.
  • Building Automation: Integrating various building management devices that use serial protocols.
  • Any application requiring flexible and robust serial communication over RS485 for a SIMATIC S7-1200 system.

Other Related SIMATIC S7-1200 Models

Here are some other commonly available SIMATIC S7-1200 components that Gold Rayline can help you source:

6ES7211-1BE30-0XB06ES7214-1GG40-0XB06ES7221-1BF30-0XB06ES7222-1HD30-0XB0
6ES7223-1BM32-0XB06ES7231-4HA32-0XB06ES7231-5QC30-0XB06ES7243-1BA32-0XB0
6ES7297-0AL20-0XA06ES7292-1AX30-0XA06ES7252-1AA00-0AB06ES7245-1AA00-0AA0

Note: The models above are representative of various SIMATIC S7-1200 CPUs (different power variants and capabilities), digital I/O modules (including high-density and relay types), analog input modules (including voltage and thermocouple types), communication modules (Telecontrol, power monitoring related), memory cards, and technology modules (for drives). Gold Rayline maintains a wide network for sourcing Siemens components. Please contact our sales team for specific model availability, detailed specifications, or to inquire about other modules to meet your exact project requirements.


Why Choose Gold Rayline?

At Gold Rayline, we’re your trusted partner for high-quality Siemens automation solutions. We specialize in supplying genuine Siemens parts, including essential components like this S7-1200 Communication Module and other discontinued or hard-to-find models, ensuring you always receive original automation components.

Sufficient Inventory & Stable Resources: We maintain ample stock and stable supplier resources to ensure quick order fulfillment. This allows you to confidently purchase obsolete industrial automation parts, like various SIMATIC S7-1200 communication modules, minimizing your operational downtime.

1-Year Warranty: We stand behind the reliability of our genuine Siemens products, including this S7-1200 Communication Module, by offering a comprehensive 1-year warranty, providing you with complete peace of mind.

Competitive Pricing & Expert Support: Gain access to transparent pricing and direct technical assistance from our certified engineers, ensuring seamless integration and optimal performance for your Siemens industrial control systems.

Fast Shipping: With orders typically shipped within 3-7 days, we significantly reduce your waiting time, getting your critical components to you quickly.

Siemens 6ES7241-1CH31-0XB0 SIMATIC S7-1200 Communication Module FAQ Guide

Why Choose Goldrayline?

Sufficient Inventory & Stable Resources

We maintain ample stock and stable supplier resources to ensure quick order fulfillment and minimize operational downtime.

1-Year Warranty

We stand behind the reliability of our genuine Siemens products with a comprehensive 1-year warranty for complete peace of mind.

Competitive Pricing & Expert Support

Access transparent pricing and direct technical assistance from our certified engineers for seamless integration.

Fast Shipping

Orders typically shipped within 3-7 days, significantly reducing your waiting time for critical components.

Service Information

Payment

Acceptable payment methods include: bank transfer, paypal, Alipay collection, wechat collection, L/C collection, AliExpress online payment, etc

Fees for various collection methods:
Paypal : 5%
Bank Transfer: $35~$55
Alipay and wechat pay : for free
AliExpress online payment: 10%
eBay payment online: 15%
L/C handing fee : $500~$650

Returns Policy​​​

At GoldRayline, we stand by our products with a No-Hassle 15-Day Returns Policy. If you’re unsatisfied for any reason, simply contact our dedicated Customer Support Team at [email protected] within 15 days of delivery for a full refund or exchange.

Key Terms:
Quick Processing: Refunds issued within 5 business days of receiving returned items.
Condition: Products must be unused, in original packaging, and include proof of purchase.
Support: Our team assists with returns tracking and resolves issues promptly.
Shop confidently—your satisfaction is our priority.

After-Sales Support

Contact Support: Reach out via our dedicated after-sales email at [email protected]. Include the product’s alarm code or clear photos/videos of the issue for faster resolution.
Swift Resolution: Our GoldRayline After-Sales team will review your case and contact you within 24 hours to provide tailored solutions, including repair, replacement, or refund, based on the fault assessment.

Shipping​

In most cases, orders can be shipped within a week;
We provide tailored shipping solutions, including UPS, FedEx, DHL, and AliExpress Standard Shipping, based on customer requirements.

6ES7241-1CH31-0XB0

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