Brand:Siemens Item No.:6AG1241-1CH32-2XB0 Product Origin:Germany Product Dimensions:30 × 100 × 75 mm Product Weight:0.155 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 6AG1241-1CH32-2XB0 Communication Module is a SIPLUS member of the S7-1200 communication family. It provides a dedicated serial interface for automation systems that need to exchange data through RS-422 or RS-485.
Unlike Ethernet-based communication, serial interfaces remain widely used in industrial equipment because many field devices, meters, drives and legacy controllers are designed around RS-422/RS-485 communication. The CM 1241 provides an efficient way to integrate these devices into an S7-1200 control architecture.
The module is based on 6ES7241-1CH32-0XB0 and uses a 9-pin D-sub interface. Its protocol capabilities include Freeport and ASCII communication as well as Modbus RTU and USS functions. This combination gives automation engineers considerable flexibility when connecting Siemens and third-party equipment.
For Modbus RTU applications, the module can operate as either a master or device. A PLC can therefore collect data from multiple compatible instruments or provide process information to another Modbus controller, depending on the system architecture.
The RS-422/RS-485 interface also makes the module suitable for longer serial connections. A maximum point-to-point cable length of 1,000 m is specified, although the achievable distance in an actual installation depends on communication speed, cable characteristics, termination and the electromagnetic environment.
The SIPLUS construction is particularly valuable in demanding installations. The conformal coating helps protect the electronics from environmental influences, while the specified operating range of -40°C to +70°C expands the range of environments in which the module can be deployed.
With dimensions of 30 × 100 × 75 mm and a weight of only 0.155 kg, the 6AG1241-1CH32-2XB0 provides serial communication without requiring a large amount of cabinet space.
Technical Specifications
Specification
Details
Product Model
Siemens 6AG1241-1CH32-2XB0
Product Type
SIPLUS S7-1200 CM 1241 Communication Module
Communication Type
RS-422 / RS-485
Product Designation
CM 1241 RS-422/485
Based On
6ES7241-1CH32-0XB0
Number of Interfaces
1
Physical Interface
RS-422/RS-485 (X.27)
Connector
9-pin D-sub, male
Rated Supply Voltage
24 V DC
Permissible Supply Voltage
20.4–28.8 V DC
Maximum Current Consumption
220 mA
Typical Power Loss
1.1 W
Freeport
Yes
Maximum Freeport Telegram Length
1 kbyte
ASCII
Yes, library function
Modbus RTU Master
Yes
Modbus RTU Device
Yes
USS
Yes, library function
Maximum Point-to-Point Cable Length
1,000 m
Conformal Coating
Yes
Operating Temperature
-40°C to +70°C
Startup Temperature
-25°C
Storage/Transport Temperature
-40°C to +70°C
Protection Rating
IP20
Maximum Installation Altitude
5,000 m
Relative Humidity
Up to 95% without condensation at 25°C
Width
30 mm
Height
100 mm
Depth
75 mm
Dimensions
30 × 100 × 75 mm
Weight
0.155 kg
Weight in Pounds
0.34 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 6AG1241-1CH30-5XB1
SIPLUS CB 1241 RS-485
Compact RS-485 communication board
Siemens 6AG1241-1AH32-2XB0
SIPLUS CM 1241 RS-232
Industrial RS-232 communication
Siemens 6AG1241-1AH32-4XB0
SIPLUS CM 1241 RS-232
Enhanced-environment RS-232 communication
Siemens 6AG1241-1CH32-4XB0
SIPLUS CM 1241 RS-422/485
SIPLUS serial communication variant
Siemens 6AG1278-4BD32-4XB0
SIPLUS S7-1200 Communication Module
Industrial serial communication applications
Popular Related Models
For S7-1200 serial communication projects, the following models are commonly considered:
Siemens 6ES7241-1CH32-0XB0 – Standard CM 1241 RS-422/485 communication module
Siemens 6AG1241-1CH30-5XB1 – SIPLUS CB 1241 RS-485 communication board
Siemens 6AG1241-1CH32-4XB0 – SIPLUS CM 1241 RS-422/485 communication module
Siemens 6AG1241-1AH32-2XB0 – SIPLUS CM 1241 RS-232 communication module
Siemens 6AG1241-1AH32-4XB0 – SIPLUS CM 1241 RS-232 communication module
Siemens 6AG1278-4BD32-4XB0 – SIPLUS S7-1200 communication module for serial applications
Applications
The Siemens 6AG1241-1CH32-2XB0 is a SIPLUS S7-1200 CM 1241 RS-422/485 communication module designed to provide serial communication capabilities for compatible Siemens S7-1200 automation systems.
Based on the standard 6ES7241-1CH32-0XB0, this SIPLUS version adds conformal coating and an extended operating temperature range of -40°C to +70°C, making it suitable for industrial environments where temperature variation, humidity, condensation, salt, oil, or other environmental stresses may be present.
The module provides one RS-422/RS-485 interface through a 9-pin D-sub connector. It can be used for communication between an S7-1200 PLC and drives, meters, instrumentation, controllers, barcode equipment, weighing systems, and other serial devices.
Typical applications include:
S7-1200 PLC serial communication
RS-422 industrial device communication
RS-485 field device communication
Modbus RTU master applications
Modbus RTU device applications
Freeport communication
ASCII communication
USS drive communication
Machine automation
Industrial instrumentation
Energy and utility monitoring
Process control systems
Equipment retrofit projects
Harsh-environment automation installations
The maximum specified point-to-point cable length is 1,000 m, allowing the module to be used in distributed serial communication systems when suitable cabling, termination and network design are applied.
Advantages
1. SIPLUS Design for Industrial Environments
The 6AG1241-1CH32-2XB0 features conformal coating and is specified for operation from -40°C to +70°C. Startup is supported down to -25°C, providing greater environmental tolerance than a standard indoor automation module.
2. RS-422 and RS-485 Communication
The integrated physical interface supports both RS-422 and RS-485, giving engineers flexibility when connecting different types of serial automation equipment.
3. Multiple Communication Protocols
The module supports Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS, allowing it to serve a wide range of PLC communication requirements.
4. Long-Distance Serial Communication
With a maximum point-to-point cable length of up to 1,000 m, the module can connect equipment located relatively far from the PLC when the appropriate RS-422/RS-485 network design is used.
5. Direct S7-1200 Integration
The CM 1241 is designed specifically for the SIMATIC S7-1200 platform. Communication parameters can be configured within the Siemens engineering environment, simplifying commissioning and maintenance.
6. Modbus RTU Support
Modbus RTU master and device functionality makes the module suitable for connecting S7-1200 PLCs to a wide range of third-party automation products, including meters, sensors, controllers and serial instruments.
7. Compact Industrial Design
The module measures 30 × 100 × 75 mm, making it practical for control cabinets where installation space is limited.
8. Conformal Coating
The conformal coating provides additional protection for the electronic assembly and supports applications exposed to demanding industrial environmental conditions.
Technical FAQs
1. What is the Siemens 6AG1241-1CH32-2XB0?
The Siemens 6AG1241-1CH32-2XB0 is a SIPLUS S7-1200 CM 1241 RS-422/485 communication module. It adds serial communication capability to compatible S7-1200 PLC systems.
2. What communication interface does the module provide?
The module provides one RS-422/RS-485 interface using a 9-pin D-sub connector.
3. Which protocols are supported by the 6AG1241-1CH32-2XB0?
Supported communication functions include Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS.
4. Can the module be used as a Modbus RTU master?
Yes. The CM 1241 supports Modbus RTU master operation and can be used to exchange data between an S7-1200 PLC and compatible Modbus devices.
5. Can it also operate as a Modbus RTU device?
Yes. The module supports Modbus RTU device functionality, allowing the S7-1200 system to participate in a Modbus RTU network as a device.
6. What is the maximum communication cable length?
The specified maximum point-to-point cable length is 1,000 m. Actual network performance depends on baud rate, cable quality, termination, grounding and electromagnetic conditions.
7. What power supply does the communication module require?
The module uses a 24 V DC nominal supply, with a permissible supply range of 20.4 to 28.8 V DC.
8. What is the operating temperature range?
The specified operating temperature range is -40°C to +70°C. Startup is supported at temperatures down to -25°C. At temperatures above +60°C, installation and configuration conditions may apply, including restrictions related to adjacent modules.
9. What is the difference between 6AG1241-1CH32-2XB0 and 6ES7241-1CH32-0XB0?
The 6AG1241-1CH32-2XB0 is the SIPLUS version based on the 6ES7241-1CH32-0XB0. It incorporates conformal coating and enhanced environmental specifications, including the wider -40°C to +70°C operating range.
10. Is the 6AG1241-1CH32-2XB0 suitable for Siemens drive communication?
Yes. The module supports USS functionality, making it suitable for compatible Siemens drive communication applications. The specific drive, communication parameters and control functions should be configured according to the application requirements.
