Siemens 6ES7341-1BH01-0AE0 Programmable Logic Controller IO Module

The Siemens 6ES7341-1BH01-0AE0 CP341 Communication Processor is an expansion module for SIMATIC S7-300 systems that adds a dedicated serial interface to the PLC. It provides a single, isolated 9-pin Sub-D connector for point-to-point communication at up to 19.2 kbit/s, with a maximum cable length of 1,000 meters, and it consumes about 4.8 W of power. This module is designed to be configured within the SIMATIC Step 7 hardware configuration, enabling the S7-300 CPU to exchange data with serial devices or networks via the CP341 interface. As part of the CP341 family, the 6ES7341-1BH01-0AE0 serves as a robust bridge for legacy automation architectures, supporting serial links where a reliable, isolated connection is required between the controller and external equipment. The unit’s compact form factor makes it suitable for installation in standard S7-300 racks, helping maintain compatibility with established field devices while extending the PLC’s communication capabilities. It provides a straightforward, single-channel serial interface that enhances the reach of older Siemens PLC installations without requiring a complete controller replacement.