Industrial Ethernet is a robust regional and cellular network built on the IEEE 802.3 (Ethernet) standard. It offers seamless integration into the modern multimedia environment, enabling efficient communication across various applications. From intranets and extranets to the broader Internet, Industrial Ethernet has expanded beyond office settings and now plays a crucial role in production and process automation.
Following the successful implementation of 10M baud rate Ethernet, advanced features such as switching, full-duplex operation, and 100M baud rate Fast Ethernet (IEEE 802.3u compliant) have been widely adopted for many years. The performance of Ethernet can be tailored to meet specific user needs, and its universal compatibility allows for smooth upgrades to emerging technologies without requiring significant infrastructure changes.
**What is Industrial Ethernet?**
In industrial environments, Ethernet typically uses commercial Ethernet standards at the data link and physical layers, while the application layer is customized by different manufacturers. Examples include Siemens PROFINET and B&R POWERLINK. To support real-time communication, Industrial Ethernet is optimized to meet the stringent requirements of industrial applications.
The concept of "network as control" is gaining widespread acceptance. Traditional distributed control systems based on RS485 or CAN buses are being gradually replaced by Industrial Ethernet networks that use the TCP/IP protocol. This approach eliminates communication issues between different protocols, as it uses a unified standard similar to the LANs we use daily. It allows direct connection to LAN computers without additional hardware, enabling data sharing and access via an IE browser instead of proprietary software. This makes it ideal for remote control, integrating with telephone switching networks, GSM, and GPRS wireless networks for remote data acquisition. Using a single type of cable reduces installation costs and complexity, avoiding the need for multiple bus systems.
Industrial Ethernet is becoming increasingly popular globally due to its numerous advantages. A wide range of supporting products is now available, including Industrial Ethernet HUBs, Firewalls, Ethernet-to-RS232/RS485 converters, A/D and D/A modules, AI and AO modules, DI and DO modules, and composite function modules.
A typical Industrial Ethernet network environment includes three main types of network devices:
- **Network Components**: Such as FC quick connect sockets, ELS (Industrial Ethernet Electrical Switch), ESM (Industrial Ethernet Electrical Switch), SM (Industrial Ethernet Fabric Switch), and MC TP11 (Industrial Ethernet Fiber Optic and Electrical Conversion Module).
- **Communication Medium**: Common twisted pair cables, industrial shielded twisted pair, and fiber optic cables.
- **Industrial Ethernet Communication Processors**: These are used to connect PLC controllers and PG/PCs to the Industrial Ethernet network, enabling seamless integration with existing systems like ERP databases.
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