6ES7241-1AH32-0XB0 - is a CM 1241 communication module of the SIMATIC S7-1200 series, which helps to exchange serial data quickly, for high performance through a point-to-point connection.

The communication module CM1241 has implemented protocols such as: ASCII, USS drive protocol, Modbus RTU, 3964(R). Simultaneously, both additional protocols and simple parameterization can be loaded with STEP 7 Basic.

Overview of SIMATIC S7-1200, Communication module CM 1241

The CM 1241 Communication Modules are used for fast, high-performance serial data exchange through point-to-point connections. Specifically as:

SIMATIC S7 automation system and systems of many other manufacturers

  • Printer
  • Control the robot
  • Modem
  • Scanner
  • Barcode reader, etc.
  • Design

Communication module CM 1241 has the following design:

There are signal LEDs, helping users to identify the status: send, receive and error.

Communication method: available for RS232 or RS422/485 physical transmission properties.

Installation

Communication Modules CM 1241 have the same design features as other basic devices. Specifically:

  • DIN rail mounting: Modules are attached to the rail next to the CPU on the right and are electrically and mechanically connected to each other and to the CPU using an integrated slide mechanism.
  • Direct mounting: Mounts horizontally or vertically on a DIN rail or directly into a cabinet using the built-in lugs.

Function of 6ES7241-1AH32-0XB0 - SIMATIC S7-1200, Communication module CM 1241

The following standard protocols are available on the Communication Modules CM 1241:

✪ ASCII code table:

To communicate with third-party systems using simple transfer protocols, such as those with start and end characters, or with block check characters.

The interface has a connection signal that can be invoked and controlled through the user program.

✪ Modbus:

For Modbus communication with RTU format:

  • Modbus Master: Master-Slave communication model with SIMATIC S7 as Master.
  • Modbus Slave: Master-Slave communication model with SIMATIC S7 as Slave. Then, there can be no message data from slave to slave.

✪ USS drive protocol:

Instructions for connecting specially supported USS protocol drives. In this case, the drives exchange data over RS485. It is then possible to control these drives and read and write parameters.

Other drivers for download are also available.

✪ Parameterization

Parameterization of the CM 1241 communication module is particularly user-friendly and simple with the STEP 7 Basic instruction. As a result, the user can specify the module characteristics through the parameterization environment integrated in the STEP 7 Basic tutorial.

For example, implemented protocol drivers and driver-specific characteristics are used.

Specifications of 6ES7241-1AH32-0XB0 - Communication module CM 1241

The following are the basic specifications of the Simatic S7 product, Communication Module CM 1241.

★ Specify product type: CM 1241 communications module

★ Manufacturer: Siemens

★ Origin: China (China)

★ Weight: 150g

★ Product Description: SIMATIC S7-1200 CM 1241 communication module has RS232 type connection, standard D-sub connector, 9 pins and supports Freeport protocol.

Technical Data Sheet 6ES7241-1AH32-0XB0 - CM 1241 from Siemens

Datasheet CM 1241 RS232 has data available for languages such as: German, English, French, Italian, Spanish, Japanese, Chinese and Russian.