Brand:Siemens Item No.:6AG1241-1CH32-4XB0 Product Origin:Germany Product Dimensions:30 × 100 × 75 mm Product Weight:0.159 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Siemens 6AG1241-1CH32-4XB0 Communication Module provides serial communication capability for Siemens S7-1200 automation systems. It belongs to the SIPLUS product family and is based on the standard 6ES7241-1CH32-0XB0 CM 1241 RS-422/485.
RS-422 and RS-485 remain widely used in industrial automation because many drives, meters, sensors, controllers and specialized instruments rely on serial interfaces. The 6AG1241-1CH32-4XB0 allows these devices to communicate directly with an S7-1200 PLC without requiring an additional protocol gateway for supported communication methods.
The module has one RS-422/RS-485 interface with a 9-pin D-sub connection. Depending on the application, engineers can use Freeport communication for customized serial telegrams, ASCII for character-based data exchange, or Modbus RTU for communication with compatible industrial equipment. USS support provides an additional option for compatible Siemens drive applications.
One of the key characteristics of this model is its SIPLUS environmental design. The module incorporates conformal coating, which helps protect the electronic circuitry against environmental influences encountered in demanding industrial installations. The specified operating temperature range is approximately -25°C to +60°C, while storage and transportation can extend from -40°C to +70°C.
The module also supports long-distance serial communication. A shielded point-to-point cable length of up to 1,000 m can be supported depending on baud rate and installation conditions. Proper cable selection, shielding, grounding and termination remain essential for stable RS-485 communication.
With dimensions of 30 × 100 × 75 mm, the 6AG1241-1CH32-4XB0 maintains the compact form factor expected from S7-1200 communication modules. Its 0.159 kg weight also makes it suitable for space-conscious PLC cabinets.
For automation engineers working with S7-1200 systems, this module is particularly useful when a project requires reliable RS-422/RS-485 communication while also demanding additional environmental protection.
Technical Specifications
Specification
Details
Product Model
Siemens 6AG1241-1CH32-4XB0
Product Type
SIPLUS S7-1200 CM 1241 Communication Module
Communication Module
CM 1241 RS-422/485
Based On
6ES7241-1CH32-0XB0
Communication Interface
RS-422 / RS-485
Interface Type
X.27
Number of Interfaces
1
Connector
9-pin D-sub
Rated Supply Voltage
24 V DC
Permissible Supply Voltage
20.4–28.8 V DC
Maximum Current Consumption
220 mA
Typical Power Loss
Approximately 1.1–1.2 W
Freeport
Yes
Maximum Freeport Telegram Length
1 kbyte
ASCII
Yes
Modbus RTU Master
Yes
Modbus RTU Device
Yes
USS
Yes
Maximum Point-to-Point Cable Length
1,000 m
Communication Baud Rate
Up to 115.2 kbit/s
Conformal Coating
Yes
Operating Temperature
Approximately -25°C to +60°C
Storage/Transport Temperature
Approximately -40°C to +70°C
Maximum Installation Altitude
5,000 m
Relative Humidity
Up to 95% at 25°C without condensation
Width
30 mm
Height
100 mm
Depth
75 mm
Dimensions
30 × 100 × 75 mm
Weight
0.159 kg
Weight in Pounds
0.35 lb
PLC Platform
Siemens S7-1200
Application
Industrial serial communication
Recommended Related Models
Model
Product Type
Main Function
Siemens 6ES7241-1CH32-0XB0
CM 1241 RS-422/485
Standard S7-1200 RS-422/485 communication
Siemens 6AG1241-1CH32-2XB0
SIPLUS CM 1241 RS-422/485
Wider-temperature RS-422/485 communication
Siemens 6AG1241-1CH30-5XB1
SIPLUS CB 1241 RS-485
Compact S7-1200 RS-485 communication
Siemens 6AG1241-1AH32-2XB0
SIPLUS CM 1241 RS-232
RS-232 serial communication
Siemens 6AG1241-1AH32-4XB0
SIPLUS CM 1241 RS-232
Conformal-coated RS-232 communication
Siemens 6AG1278-4BD32-4XB0
SIPLUS S7-1200 SM 1278
IO-Link Master communication
Popular Related Models
For S7-1200 serial communication and industrial networking projects, these models are useful alternatives or complementary products:
Siemens 6ES7241-1CH32-0XB0 – Standard CM 1241 RS-422/485 communication module
Siemens 6AG1241-1CH32-2XB0 – SIPLUS CM 1241 RS-422/485 communication module
Siemens 6AG1241-1CH30-5XB1 – SIPLUS CB 1241 RS-485 communication board
Siemens 6AG1241-1AH32-2XB0 – SIPLUS CM 1241 RS-232 communication module
Siemens 6AG1241-1AH32-4XB0 – SIPLUS CM 1241 RS-232 communication module with conformal coating
Siemens 6AG1278-4BD32-4XB0 – SIPLUS S7-1200 SM 1278 IO-Link Master module
Applications
The Siemens 6AG1241-1CH32-4XB0 is a SIPLUS S7-1200 CM 1241 RS-422/485 communication module designed for serial communication between an S7-1200 PLC and industrial field devices.
The module is based on the standard 6ES7241-1CH32-0XB0 and provides one RS-422/RS-485 interface through a 9-pin D-sub connector. It supports Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS communication, making it suitable for both Siemens and third-party serial devices.
The conformal-coated SIPLUS design is intended for industrial applications with increased environmental exposure. It is particularly useful in control cabinets where conventional communication modules may need additional environmental protection.
Typical applications include:
S7-1200 PLC serial communication
RS-422 point-to-point communication
RS-485 industrial networks
Modbus RTU master systems
Modbus RTU device applications
Siemens drive communication using USS
ASCII data exchange
Freeport custom protocols
Industrial meters and instrumentation
Energy monitoring systems
Machine automation
Process control
Weighing and measurement equipment
Legacy equipment integration
Industrial retrofit projects
The module supports shielded point-to-point cable lengths of up to 1,000 m, depending on baud rate and installation conditions.
Advantages
1. SIPLUS Conformal-Coated Construction
The 6AG1241-1CH32-4XB0 features conformal coating, providing additional protection for the electronics in demanding industrial environments.
2. RS-422 and RS-485 Support
A single communication interface can be configured for RS-422 or RS-485 applications, allowing the module to accommodate different serial architectures.
3. Broad Protocol Compatibility
The module supports Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS, making it suitable for a wide range of industrial communication requirements.
4. Modbus RTU Integration
Modbus RTU master functionality allows an S7-1200 PLC to collect data from compatible meters, instruments, drives and controllers. Device functionality can also be used when the PLC needs to participate as a Modbus device.
5. Long Communication Distance
With a maximum shielded point-to-point cable length of up to 1,000 m, the module can support distributed serial equipment when appropriate cabling and network termination are used.
6. Direct S7-1200 Integration
The CM 1241 is designed specifically for the SIMATIC S7-1200 platform, providing a straightforward solution for adding serial communication without installing a separate external gateway.
7. Compact Form Factor
The module measures 30 × 100 × 75 mm, allowing it to fit efficiently into compact control cabinets.
8. Lightweight Design
The supplied module weight is only 0.159 kg (0.35 lb), making it convenient for compact PLC assemblies.
Technical FAQs
1. What is the Siemens 6AG1241-1CH32-4XB0?
The Siemens 6AG1241-1CH32-4XB0 is a SIPLUS S7-1200 CM 1241 RS-422/485 communication module for adding serial communication to compatible S7-1200 PLC systems.
2. What interface does the module provide?
It provides one RS-422/RS-485 interface using a 9-pin D-sub connector.
3. Which protocols can be used with this module?
The module supports Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS communication functions.
4. Can the module be used with Modbus RTU equipment?
Yes. It supports both Modbus RTU master and Modbus RTU device operation, allowing communication with compatible industrial instruments and controllers.
5. Is the 6AG1241-1CH32-4XB0 suitable for Siemens drives?
Yes. The module supports USS, which can be used for communication with compatible Siemens drive systems through the appropriate Siemens communication functions.
6. What is the maximum serial cable length?
The maximum shielded point-to-point cable length is 1,000 m, with the achievable distance dependent on baud rate and network conditions.
7. What supply voltage does the module use?
The module operates from a nominal 24 V DC supply, with an allowable range of 20.4 to 28.8 V DC.
8. What is the operating temperature range?
The SIPLUS 6AG1241-1CH32-4XB0 is specified for operation from approximately -25°C to +60°C. Storage and transportation conditions extend to approximately -40°C to +70°C.
9. What is the difference between 6AG1241-1CH32-4XB0 and 6AG1241-1CH32-2XB0?
Both are SIPLUS versions of the S7-1200 CM 1241 RS-422/485 platform. The 6AG1241-1CH32-4XB0 is the variant intended for environments with increased exposure to environmental substances and uses conformal coating, with a specified operating range around -25°C to +60°C. The 6AG1241-1CH32-2XB0 is the wider-temperature SIPLUS variant.
10. Can the module communicate with third-party equipment?
Yes. The RS-422/RS-485 interface and support for Freeport, ASCII and Modbus RTU make the module suitable for connecting compatible third-party industrial equipment.
