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System properties for network and fieldbus modules

Unlimited communication

Today, extensive communication possibilities are a basic requirement for any automation solution. Ethernet is easily experiencing the strongest growth in this sector. CAN bus systems are also experiencing significant gains.

Flexible communication and networking are a fundamental part of B&R products. Most CPUs are already equipped with an integrated 10/100 Mbit/s Ethernet interface.

Communication must adapt to meet the requirements of the application. That is why there is a wide product range of interface modules. They can be used with all x86-based CPUs from the 2003 and 2005 systems as well as with the Power Panel 400 series. The modules are based on the B&R aPCI standard. Plug-in cards are available in the PCI format for B&R Industrial PCs.

aPCI modules (advanced PCI) based on the PCI bus standard. Their form and boot behavior have been optimized for usage in automation devices.

Networks for automation

Higher demands are placed on communication in the field than are placed on office communication. Real-time capability and deterministic behavior are of utmost importance in this respect. Jitter behavior in the microsecond range and extremely high resistance to disturbance are important factors.

True real-time for standard Ethernet

POWERLINK provides a standard protocol for Fast Ethernet, which has proven its tough real-time characteristics in thousands of applications. The Ethernet POWERLINK Standardization Group (EPSG) ensures openness and continuous advancement. POWERLINK as a standard Ethernet based system represents the second generation of fieldbuses. This makes it possible to apply the full power of IT technologies to the automation field for the first time. POWERLINK is ideally suited for drives, I/O, visualization and data exchange between PLC systems.

CAN bus in automation

The CAN bus has had much success, particularly in machine manufacturing, and is steadily gaining importance. High resistance to disturbance, high-speed data transfer, ease of use and deterministic real-time behavior are among the reasons for this success. CAN is the ideal fieldbus for applications with a manageable number of remote I/O nodes and few axes. As a fieldbus, CAN bus reaches its limits when dealing with larger and more complex machines. For these applications, however, POWERLINK is the ideal expansion into the higher performance range.

Remote backplane

Decentralization is the dominating trend in automation technology. This has come about as a result of economic considerations and the total cost reduction of machines by those who see the clear advantages of a decentralized structure for multiple applications. These demands brought about the idea of running the conventional backplane for the I/O modules in a PLC system or a bus controller in one cable. The result is the extremely high-speed I/O connection, X2X Link.

Serial communication

Interfaces such as RS232, RS422 and RS485 still play an important role in the automation world. Robust, simple and nevertheless efficient, these interfaces still find wide usage. The classic RS232 interface is fully capable of meeting the demands for system programming and maintenance.

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