Introduction to the 6ES7340-1CH00-0AE0
When a legacy SIMATIC S7-300 system requires reliable serial communication, the 6ES7340-1CH00-0AE0 from Siemens serves as a dedicated communication processor. This CP340 module offers an RS422/485 interface, enabling point-to-point data exchange in industrial environments. Although this model is discontinued, understanding its role helps in planning upgrades to the successor 6ES7340-1CH02-0AE0.
Key Features and Technical Specifications
The 6ES7340-1CH00-0AE0 is engineered for serial communication tasks within the S7-300 family. Its primary interface is RS422/485, which supports robust data transmission over longer distances compared to RS232. The module includes a configuration package on CD, simplifying initial setup.
- Manufacturer: Siemens
- Part Number: 6ES7340-1CH00-0AE0
- Interface: RS422/485
- Net Weight: 0.359 kg
- Packaging Dimensions: 13.10 x 15.30 x 5.00 cm
- Product Lifecycle: Discontinued (since 2012-10-01)
- Successor: 6ES7340-1CH02-0AE0
Because the module is no longer in production, current users should verify availability and consider the successor for new designs. The RS422/485 interface supports multi-drop configurations, making it suitable for networked serial devices.
Applications and Use Cases
The 6ES7340-1CH00-0AE0 was widely used in industrial automation for connecting S7-300 PLCs to serial devices such as barcode scanners, printers, and variable frequency drives. Its RS422/485 interface allows reliable communication over extended cable runs, which is essential in factory floor environments. For example, in a packaging line, the CP340 could coordinate multiple sensors and actuators through a serial bus. Additionally, it served in remote monitoring applications where data logging devices required a stable serial link.
Installation and Setup
Installing the 6ES7340-1CH00-0AE0 involves mounting it on a standard S7-300 DIN rail. The module connects to the backplane bus, and the RS422/485 terminals are accessible on the front. The included configuration CD provides the necessary software for parameterizing the communication interface. Ensure proper termination resistors for RS485 networks to avoid signal reflections. Always refer to the S7-300 manual for detailed wiring guidelines.
Maintenance and Reliability
Although the 6ES7340-1CH00-0AE0 is a robust module, periodic inspection is recommended to ensure reliable operation. Check for loose connections and verify that the RS422/485 wiring is intact. Since the product is discontinued, maintaining spare units or planning a migration to the successor is prudent. Regular firmware updates are not available for this model, so consider the successor for enhanced features.
Compatibility and Integration
The 6ES7340-1CH00-0AE0It uses the RS422/485 protocol, which is common in industrial serial communication. The module supports point-to-point and multi-drop configurations, allowing connection to various serial devices. For integration, the configuration package on CD assists in setting up the communication parameters within the TIA Portal or Step 7 environment.
Troubleshooting Common Issues
Common issues with the 6ES7340-1CH00-0AE0 include communication errors due to incorrect RS485 termination or wiring faults. If the module fails to communicate, check the baud rate and parity settings against the connected device. Also, verify that the module is properly seated in the rack. For persistent problems, consult the Siemens support documentation or contact AutoDCSTech for guidance.
Product Support and Availability
While the 6ES7340-1CH00-0AE0 is discontinued, AutoDCSTech can assist with sourcing legacy parts or identifying the successor. Contact AutoDCSTech for availability and support options.
Comparison with Successor Model
When evaluating the 6ES7340-1CH00-0AE0 against its successor, the 6ES7340-1CH02-0AE0, several factors stand out:
- Lifecycle: The 1CH00 is discontinued; the 1CH02 is the active replacement.
- Interface: Both offer RS422/485, ensuring similar communication capabilities.
- Compatibility: The successor maintains the same form factor and likely offers enhanced firmware features.
- Support: The successor receives ongoing Siemens support and updates.
For existing installations, migrating to the successor ensures long-term maintainability. For new projects, the successor is the recommended choice.
Availability & Condition at AutoDCSTech
| Part Number | 6ES7340-1CH00-0AE0 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Germany |
