Siemens 6ES7341-1AH00-0AE0 | Communication Processor

Technical Overview of the CP 341 Communication Processor

The Siemens 6ES7341-1AH00-0AE0 communication processor provides a dedicated serial interface for the SIMATIC S7-300 automation system. This module enables data exchange with third-party devices using the ASCII protocol. It supports both point-to-point and multi-drop configurations for flexible network topologies. The processor handles time-critical communication tasks independently from the CPU. Consequently, this module offloads communication overhead and improves overall system performance.

Key Technical Specifications

Specification	Details
Manufacturer	Siemens
Model Number	6ES7341-1AH00-0AE0
Product Type	Communication Processor (CP 341)
Compatible System	SIMATIC S7-300 (all CPU versions)
Interface Type	RS-232-C (V.24)
Transmission Rate	2400 baud to 115.2 kbaud (configurable)
Protocol Support	ASCII (user-definable), RK512, 3964(R)
Data Bits	7 or 8
Stop Bits	1 or 2
Parity	None, Odd, Even, Mark, Space
Connection Type	9-pin D-sub connector (female)
Operating Temperature	0°C to +60°C
Storage Temperature	-40°C to +70°C
Dimensions (W x H x D)	40 mm x 125 mm x 120 mm
Weight	Approximately 0.2 kg
Protection Class	IP20
Certifications	CE, UL, CSA

Functional Capabilities and Design Features

This communication processor includes an integrated 32-byte receive buffer for reliable data handling. It supports user-configurable telegram framing for custom protocols. The module also features a built-in watchdog timer to detect communication failures. Moreover, diagnostic LEDs provide real-time status of transmit, receive, and error conditions. Therefore, this processor simplifies integration with barcode readers, scales, and other serial devices.

Engineering and Application Context

The Siemens 6ES7341-1AH00-0AE0 communication processor connects directly to the S7-300 backplane bus. Engineers configure the module using the CP 341 parameter assignment package. The RS-232 interface supports cable lengths up to 15 meters. Ultimately, this processor enables seamless connectivity between Siemens PLCs and legacy serial equipment.