Siemens SIMATIC S7-1200 G2 CM 1241 – RS232/422/485 Communication Module
The Siemens SIMATIC S7-1200 G2 CM 1241 communication module (article number 6ES7241-1EA50-0XB0, EAN: 4034106035709) is a versatile expansion module for the SIMATIC S7-1200 G2 PLC family. It provides serial communication interfaces (RS232, RS422, RS485) for connecting a wide range of legacy or special devices to modern automation systems.
Equipped with a push-in terminal block, the module enables fast, reliable, and space-efficient wiring within control cabinets. It expands the communication capabilities of your PLC, allowing direct connection of serial peripherals, sensors, and external controllers.
Features & Benefits
- Serial communication via RS232, RS422, and RS485 – one module supporting multiple standards.
- Long transmission distances up to 1 000 m with shielded cable on RS422/485.
- Protocol support including Freeport, Modbus RTU or USS via software configuration.
- Push-in terminals for quick installation without tools.
Compatibility & Usage
This module is designed for the SIMATIC S7-1200 G2 PLC family and enhances standard communication capabilities. It enables integration of devices with serial interfaces such as measurement units, legacy controllers, or specialized instrumentation into modern automation systems.
Product Datasheet
Detailed technical specifications are available in the official Siemens product documentation:
→ product datasheet (PDF)
