CiA® 421 series: Profiles for train vehicle control systems

The document CiA 421 train vehicle control network describes the communication via the in-vehicle integration network. This profile describes, which application data has to be provided to the in-vehicle integration network by a certain sub-system. In case e.g. all doors shall be closed, the train operating system needs to know, where to hand over the command to the door control system. From a CANopen point of view this means, to which object in the object dictionary of the door controller, the train operating system has to write the “close all door command”. In addition, the door controller needs to know the structure of the command (e.g. which bit covers the demanded action). This information is standardized in the document CiA 421. In addition the in-vehicle integration network may be connected to a WTB-based train control network via a gateway device. In order to minimize the formatting effort within such a gateway device, the data defined in CiA 421 was harmonized with those defined in UIC leaflet 556.

The CiA 421 series of documents specifies virtual device interfaces for sub-systems used in locomotives, power-cars, and coaches. This application profile is part of a virtual multiple network architecture. It is the higher hierarchical virtual network on vehicle sub-level that connects a number of sub-systems. In order to support every physical network architecture, no PDOs have been pre-defined. The virtual interfaces of the sub-system are described in:

  • Part 1: General definitions
  • Part 2: Train operating system
  • Part 3: Monitoring and safety system
  • Part 4: Auxiliary operating system
  • Part 5: Power (drive) system
  • Part 7: Brake control system
  • Part 8: Ancillary operating system
  • Part 9: Vehicle linkage system
  • Part 10: Exterior lighting system
  • Part 11: Interior lighting system
  • Part 12: Door control system
  • Part 13: HVAC system
  • Part 18: Slip/slide control system
Title Details
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CiA 421-1 version 1.0.0CANopen application profile for train vehicle control networks – Part 1: General definitions
DescriptionThis application profile defines the communication between virtual devices within locomotives, power cars as well as coaches. It is intended to use the application profile for urban and regional rail vehicle transportation system as well as long-distance rail vehicle transportation systems including high-speed trains. But it is not limited to these railway applications, e.g. it is also used in cargo train locomotives and cargo train wagons as well as other railway transportation systems, such as commuter trains, subway trains, etc.
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DSP198 KiB2006-08-18Login
CiA 421-4 version 1.0.0CANopen application profile for train vehicle control networks – Part 4: Auxillary operating system
DescriptionThis part of the CANopen application profile for train control networks describes the CANopen interface of the virtual rail vehicle auxiliary operating system.
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DSP203 KiB2006-08-18Login
CiA 421-5 version 1.0.0CANopen application profile for train vehicle control networks – Part 5: Power (drive) system
DescriptionThis part of the CANopen application profile describes the CANopen interface of the virtual power drive system to the rail vehicle in-vehicle network.
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DSP1.2 MiB2006-08-18Login
CiA 421-9 version 1.0.0CANopen application profile for train vehicle control networks – Part 9: Vehicle linkage device
DescriptionThis part of the CANopen application profile for rail vehicles describes the CANopen interface of the vehicle linkage device. Via this interface all required data is exchanged that is relevant to control full automatic couplings. Full automatic couplings handle all connections between the rail vehicles such as e.g. electrically or electrical automatically, without human interaction.
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DSP139 KiB2008-04-17Login
CiA 421-10 version 1.0.0CANopen application profile for train vehicle control networks - Part 10: Exterior lighting system
DescriptionThis part of the CANopen application profile for rail vehicles describes the CANopen interface of the virtual exterior lighting system.
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DSP171 KiB2006-08-18Login
CiA 421-11 version 1.0.0CANopen application profile for train vehicle control networks – Part 11: Interior lighting system
DescriptionThis part of the CANopen application profile for rail vehicles describes the CANopen interface of the virtual interior lighting system.
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DSP135 KiB2006-08-18Login
CiA 421-12 version 1.0.0CANopen application profile for train vehicle control networks – Part 12: Door control system
DescriptionThis part of the CANopen application profile for rail vehicles describes the CANopen interface of the virtual door control system.
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DSP217 KiB2006-08-18Login
CiA 421 version 1.0.3CANopen Application profile for train vehicle control networks - Part 1: General definitions
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WD690 KiB2008-01-29Login