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6ES7241-1AH32-0XB0

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Siemens 6ES7241-1AH32-0XB0 is a SIMATIC S7-1200 CM 1241 communication module that adds an RS232 serial interface for Freeport and Modbus RTU communication.
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Technical specifications for 6ES7241-1AH32-0XB0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7241-1AH32-0XB0
  • Product Family:
    Siemens Simatic S7-1200
  • Product Type:
    CM 1241 Communication Module
  • Stock:
    1
  • Supply Voltage:
    20.4-28.8 V DC
  • Serial Interface:
    RS232C
  • Connector:
    9-pole D-sub pin
  • Protocols:
    Freeport; Modbus RTU
  • Cable Length:
    10 m max.
  • Backplane Bus Current:
    200 mA max. at 5 V DC
  • Power Loss:
    1.1 W typical
  • Protection:
    IP20
  • Weight:
    0.335 lbs (0.152 kg)
  • Estimated shipping dimensions:
    8.80 x 11.00 x 5.70 cm
  • Tariff Code:
    85176200
  • Country of origin:
    China
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Interface Protocols Installation

Features:

  • One RS232C serial interface
  • Freeport and Modbus RTU support
  • 9-pole D-sub pin connector
The Siemens 6ES7241-1AH32-0XB0 is a SIMATIC S7-1200 CM 1241 communication module with one RS232C serial interface. A 9-pole D-sub pin connector provides the connection to compatible serial equipment. Official Siemens data identifies Freeport and Modbus RTU among the supported communication options. The module adds point-to-point serial communication to a compatible S7-1200 controller station.

The unit operates from a specified 20.4-28.8 V DC supply range and draws up to 200 mA from the 5 V backplane bus. Typical power loss is 1.1 W, and the module has IP20 protection. Siemens specifies a maximum cable length of 10 m for this RS232C interface. Communication settings must be coordinated with the connected device, including data format, baud rate and protocol parameters.

This order number should be selected specifically for projects that require RS232C rather than RS422/485 communication. Confirm the connector pin assignment, cable type, protocol and supported peer device before wiring the module. The S7-1200 CPU and the communication program must be configured for the intended serial exchange. Installation should remain within the official cable-length, supply and enclosure limits.

When the 6ES7241-1AH32-0XB0 is required for RS232C communication, Apter Power can help review official data, cabling needs and sourcing options. Siemens states product phase-out from 1 November 2026; supply and lead time require confirmation.
Siemens 6ES7241-1AH32-0XB0 CM 1241 Communication Module Manuals, Datasheets, LinkImportant Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Siemens 6ES7241-1AH32-0XB0 CM 1241 Communication Module Specs

General

  • ManufacturerSiemens
  • Model6ES7241-1AH32-0XB0
  • ConditionNew Original ready stock
  • Product FamilySIMATIC S7-1200 CM 1241 Communication Modules
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Serial Interface:

  • RS232C interface
  • One 9-pole D-sub pin connector
  • 10 m maximum cable length
  • Diagnostic status indication

Supported Protocols:

  • Freeport communication
  • ASCII available as a library function
  • Modbus RTU master
  • Modbus RTU device

Installation Notes:

  • 30 x 100 x 75 mm module dimensions
  • 20.4-28.8 V DC permissible supply
  • IP20 degree of protection
  • Verify connector pinout and serial parameters
Description
The 6ES7241-1AH32-0XB0 is a SIMATIC S7-1200 CM 1241 communication module with one RS232C interface and a 9-pole D-sub pin connector for serial device integration.

A rated 24 V DC supply is specified for the 6ES7241-1AH32-0XB0, with a permissible range of 20.4-28.8 V DC. Maximum current consumption from the 5 V DC backplane bus is 200 mA, and typical power loss is 1.1 W.

The 6ES7241-1AH32-0XB0 supports Freeport, ASCII library functions, and Modbus RTU master or device operation. Siemens specifies a maximum RS232 point-to-point cable length of 10 m and an IP20 degree of protection.

Siemens lists the 6ES7241-1AH32-0XB0 as a PM300 Active Product with product phase-out from 1 November 2026. Confirm connector pinout, protocol parameters, cable length and project hardware configuration before use.
Alternative Names
6ES7241 1AH32 0XB0 6ES72411AH320XB0 6ES7241 -1AH32-0XB0 Siemens 6ES7241 1AH32 0XB0 SIEMENS 6ES72411AH320XB0 SIMATIC S7 1200 CM 1241 RS232 CM 1241 RS232 Communication Module S7 1200 Modbus RTU Serial Module
Technical notes
6ES7241-1AH32-0XB0 provides one RS232 port for Freeport and Modbus RTU communication in a SIMATIC S7-1200 station. Confirm pinout, protocol parameters and the 10 m maximum cable length.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is Siemens 6ES7241-1AH32-0XB0?
6ES7241-1AH32-0XB0 is a Siemens SIMATIC S7-1200 CM 1241 Communication Modules product described as a CM 1241 Communication Module.
What does 6ES7241-1AH32-0XB0 provide?
6ES7241-1AH32-0XB0 provides one RS232C serial interface according to the official Siemens documentation.
Which system uses 6ES7241-1AH32-0XB0?
6ES7241-1AH32-0XB0 is intended for the Siemens SIMATIC S7-1200 platform; verify the target CPU or station configuration before installation.
Which key specifications apply to 6ES7241-1AH32-0XB0?
6ES7241-1AH32-0XB0 is specified with Freeport and Modbus RTU support with a maximum 10 m point-to-point cable.
What is the lifecycle status of 6ES7241-1AH32-0XB0?
Siemens lists 6ES7241-1AH32-0XB0 as a PM300 Active Product and states product phase-out from 1 November 2026.
Is official documentation available for 6ES7241-1AH32-0XB0?
The Manuals tab provides Siemens official documentation for 6ES7241-1AH32-0XB0 as its first link.
What should be checked before installing 6ES7241-1AH32-0XB0?
For 6ES7241-1AH32-0XB0, verify connector pinout, protocol parameters, cable length and project configuration.
How can I request a quote for 6ES7241-1AH32-0XB0?
For a 6ES7241-1AH32-0XB0 quotation, send the required quantity and application details to Apter Power for stock and lead-time confirmation.