IEC 61375 PDF

The train communication network (TCN) is a hierarchical combination of two fieldbus for data transmission within trains. It consists of the Multifunction Vehicle Bus (MVB) inside each vehicle and of the Wire Train Bus (WTB) to connect the different vehicles. The TCN components have been standardized in IEC IEC and UIC have now been issued as a set of international standards to overcome this situation: IEC , the Train Communication Network. STANDARD. IEC. First edition. Electric railway equipment –. Train bus –. Part 1: Train Communication Network. Matériel électrique ferroviaire .

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The MVB standard was introduced to replace the multitude of field buses in the train equipment. Running FlexRay with 2. The maximum distance is determined on 613755 restriction of a maximum allowed reply delay of Technical and de facto standards for wired computer buses.

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Train communication network

This is not due to the communication technology: The frames have a maximum payload of bits. A unique property of the WTB is the train inauguration Zugtaufe in which the newly connected vehicles receive an address in sequence and can identify the vehicle side called port and starboard like in 613375 marine so that doors open on the correct side.

This was intentional as the fight between the field busses raged in the s and the decision of the IEC that any of the eight field busses was a standard did not help plug-compatibility.

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When two train compositions join, the addresses are reallocated to form a new composition of vehicles with a sequential address. The connector between the vehicles is the pole UIC connector. Up to 32 addresses can be dynamically allocated.

Despite the similarities, no rail-manufacturer has considered FlexRay, since they valuated a common solution higher than a multitude of better busses.

When total cost of ownership is considered, the cost of the hardware elements can easily be outweighed by additional engineering costs in iwc railways market with its small series.

Since connectors are exposed and can oxidize, a current pulse is applied at connection establishment to evaporate the oxide layer, called fritting. Interfaces are listed by their speed in the roughly ascending order, so the interface at the end of each section should be the fastest. Still all the alternate vehicle buses are connected to the Wire Train Bus.

Train communication network – Wikipedia

iecc The WTB also supports sporadic data transmission for diagnostics. This explains why MVB and FIP have similar operation cyclic and event-drivenonly the arbitration method in case 63175 multiple access differs, as MVB used a binary bisection mode relying of collision detection while FIP piggy-backed a “look-at-me” bit over periodic data.

The content of the periodic and sporadic frames is governed by the UIC standard. By using this site, you agree to the Terms of Use and Privacy Policy.

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The medium consists of a duplicated shielded twisted pair cable, which runs in the UIC cables between the vehicles. But railways certification is costly and not always needed for uncritical applications such as comfort and passenger information.

The plugs and sockets are the same as used by Profibus with two 9-pin Sub-D sockets per electrical device. Archived from the original powerpoint on While the WorldFIP, CANopen, Lonworks and Profinet are controlled by international manufacturer associations targeting a wide range of application, MVB was tailored to the rolling stock application, with the goal of plug-compatibility, and therefore allows no options.

There is no inauguration, the addresses are statically allocated.

The train communication network TCN is a hierarchical combination of two fieldbus for data transmission within trains. This separation is not always observed.

The MVB frames are not compatible with IEC fieldbus frames as it omits most of the preamble synchronization which is not required if ief detection is possible. Rail technologies Serial buses Automation.

The multifunction vehicle bus connects individual nodes within a vehicle 61357 in a closed train set. From Wikipedia, the free encyclopedia. Vehicles without WTB node “conduction vehicles” are not counted.

This page was last edited on 9 Augustat