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 Number | 6ES7241-1CH31-0XB0 | Product Type | Communication Module |
| Net Weight | 0.1 kg (Estimated) | Series | SIMATIC S7-1200 |
| Module Type | CM 1241 | Interface Type | RS485 |
| Number of Ports | 1 | Supported Protocols | Modbus RTU (Master/Slave), USS (Master), Freeport |
| Baud Rate | Up to 115.2 Kbit/s | Electrical Isolation | Yes |
| Power Consumption | Max. 1 W | Terminal Type | Screw-type terminal block |
| Operating Temp. | -20 °C to +60 °C | Dimensions (H x W x D) | Approx. 100 mm x 30 mm x 75 mm |
| Country of Origin | Germany |
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:
| 6ES7211-1BE30-0XB0 | 6ES7214-1GG40-0XB0 | 6ES7221-1BF30-0XB0 | 6ES7222-1HD30-0XB0 |
| 6ES7223-1BM32-0XB0 | 6ES7231-4HA32-0XB0 | 6ES7231-5QC30-0XB0 | 6ES7243-1BA32-0XB0 |
| 6ES7297-0AL20-0XA0 | 6ES7292-1AX30-0XA0 | 6ES7252-1AA00-0AB0 | 6ES7245-1AA00-0AA0 |
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.