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Industrial Ethernet Book 104

The RapID platform based on fido5000 is available for use within an evaluation kit. The fido5000 REM switch and the RapID platform already offer the best prerequisites for time-critical applications based on current industrial Ethernet and future TSN standards. possibility to use their own processors, as well as their preferred development environments. All these possibilities and technology options are available with the fido5000 technology. Communication processing The communication between the REM chip and the processor works via memory bus in order to implement high performance, low latency/low jitter industrial Ethernet. The memory bus also provides the host interface with PriorityChannel technology. This filter technology was developed by ADI and consists of a hardware/software combination. It ensures in-time processing of critical data from an Ethernet network, independent of its protocols and network utilization, so there is no interference from non-time critical data traffic. This means that data from the real-time channel has higher processing priority than normal network data. This PriorityChannel technology shows four queues that give the possibility to do fine adjustment when processing real-time data. Besides its switch functionality, the fido5000 technology also implements a powerful timer control unit (TCU). The TCU is intended to implement the synchronization mechanisms of the various industrial Ethernet protocols. Additional functions like input capture or to output any square wave signals can be realized via four dedicated outputs or through four universal inputs/ outputs. These ports are directly in phase with the synchronized time. For example, it is possible to time stamp the arrival of an edge at any of the four inputs with 64-bit resolution. At the outputs, any digital signal patterns can be output synchronously to the network time. This means it is possible to synchronize the user’s application with the network time even down to cycle times less than 31.25 μs. Support for TSN Along with providing a solution for multiprotocol Industrial Ethernet communications, the chip is already prepared to support time sensitive networks (TSN). The needs of future TSN-based industrial Ethernet applications will be able to meet very demanding real-time requirements of applications like motion control or safety. TSN is a set of standards defined by the IEEE 802.1 workgroup. It will be compatible with existing standard Ethernet technologies. Essentially, TSN defines the first IEEE standard for time-controlled data routing in switched Ethernet networks. The deterministic real-time communication within the series of the IEEE 802 standards can thus be realized by means of a common time base and a schedule, which is generated for message paths over several network components. In addition to the pure REM switch chip fido5000 technology, ADI also provides a complete solution with the fido5000 called RapID platform. The RapID platform has all common industrial Ethernet protocols implemented and can be integrated into a non-Ethernet field device without much effort. This will allow the field device to meet the requirements of Industry 4.0 applications. The implementation of the common industrial Ethernet protocols is pre-certified. Another interesting feature of the RapID platform is the dynamic, integrated web server. It allows the user to read and modify network parameters, and input and output data in a very simple way. Thomas Brand, Analog Devices, Inc. 21 2.2018 industrial ethernet book SOURCE: ANALOG DEVICES


Industrial Ethernet Book 104
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