Low Priority Queue 0

Queue 1

Queue 2

Highest Priority Queue 3

fido5000

Industrial Ethernet

Interrupts 1 … 3

MCU or MPU

(ARM, PPC, …)

Figure 3. Concept of Analog Devices PriorityChannel technology.

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Besides its switch functionality, the fido5000 also features a powerful

timer control unit (TCU). The TCU is intended to implement the synchroni-

zation 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.

But the fido5000 does even more—the chip is already prepared for the

future! The fido5000 supports 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, 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 pro-

tocols is precertified. 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.

Figure 4. 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.

About the Author

Thomas Brand began his career at Analog Devices in Munich in

October 2015 as part of his master’s thesis. From May 2016 to

January 2017, he was part of a trainee program for field applica-

tion engineers at Analog Devices. Afterward, in February 2017, he

moved into the role as field applications engineer. Within this role,

he is mainly responsible for large industrial customers. Furthermore,

he specializes in industrial Ethernet and supports related subjects in

Central Europe. He studied electrical engineering at the University of

Cooperative Education in Mosbach, Germany, before completing his

postgraduate studies in international sales with a master’s degree at

the University of Applied Sciences in Konstanz, Germany. He can be

reached at thomas.brand@analog.com.

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