Product Overview: 6ES7340-1BH00-0AE0 Communication Processor
When your SIMATIC S7-300 system demands dependable serial communication, the 6ES7340-1BH00-0AE0 from Siemens delivers a robust solution. This CP340 communication processor provides a single isolated 20mA (TTY) interface, engineered for point-to-point data exchange in industrial environments.
Key Features & Technical Specifications
The 6ES7340-1BH00-0AE0 is built for performance and reliability. Below are the core specifications extracted from the official datasheet:
- Interface: 1 isolated 20mA (TTY) interface
- Transmission rate: 2.4 kbit/s to 9.6 kbit/s (up to 19.2 kbit/s with 3964(R) protocol)
- Backplane bus current: 5 V DC, max 220 mA
- Power loss: max 0.85 W
- Cable length: max 1000 m (passive), 100 m (active)
- Supported protocols: 3964(R), ASCII, printer driver
- Telegram length: max 1024 bytes (3964(R) and ASCII)
- Dimensions: 40 mm x 125 mm x 120 mm (W x H x D)
- Weight: approx 300 g
One distinctive feature is the long cable reach of up to 1000 meters in passive mode, which is rare among serial interfaces.
Applications & Use Cases
The 6ES7340-1BH00-0AE0Typical use cases include connecting barcode scanners, printers, weigh scales, and other serial devices to a S7-300 PLC. For example, in a warehouse management system, the module can link a remote label printer to the central controller, ensuring accurate and timely printing. Additionally, its support for the 3964(R) protocol enables robust data exchange with Siemens and third-party devices, making it a versatile choice for retrofit projects.
Installation & Setup
Installing the 6ES7340-1BH00-0AE0 is straightforward. The module mounts directly onto the S7-300 DIN rail and connects to the backplane bus. Ensure that the 20mA TTY wiring is properly terminated and that the active/passive mode is configured according to the connected device. The configuration package on CD simplifies parameter assignment, allowing you to set transmission rates and protocol parameters quickly. Always refer to the SIMATIC S7-300 manual for detailed wiring diagrams and safety guidelines.
Maintenance & Reliability
To maintain optimal performance, periodically inspect the module for dust accumulation and ensure that all connections remain secure. The 20mA TTY interface is inherently immune to voltage drops over long cable runs, reducing the risk of communication errors. As with all industrial electronics, avoid exposing the module to excessive vibration or temperature extremes. Routine checks of the backplane bus current draw (max 220 mA) help prevent overloading the S7-300 power supply.
Compatibility & Integration
The 6ES7340-1BH00-0AE0 is designed for the SIMATIC S7-300 family. It supports point-to-point communication with devices using 3964(R), ASCII, or printer protocols. The module can drive HP-Deskjet, HP-Laserjet, IBM-Proprinter, and user-defined printers, making it a flexible printing solution. For integration, the CP340 uses the backplane bus for power and data exchange, requiring no additional external power supply.
Troubleshooting & Common Issues
If communication fails, first verify that the transmission rate matches the connected device. For long cable runs, ensure that the passive mode is used and that the total cable length does not exceed 1000 meters. If using active mode, limit the cable to 100 meters. Check the 20mA loop current and confirm that the interface is properly isolated. If problems persist, consult the configuration package or contact AutoDCSTech for technical support.
Product Support & Availability
The 6ES7340-1BH00-0AE0 is available from AutoDCSTech. As an industrial automation parts supplier, we ensure genuine Siemens products and prompt shipping.
Availability & Condition at AutoDCSTech
| Part Number | 6ES7340-1BH00-0AE0 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Germany |
