Over the years, the people at Cactus have become expert at adapting the system to our customers’ needs, their existing infrastructure and neighbouring systems. In our projects, it is a matter of course for us to adapt and integrate Cactus TMS with our customers’ existing systems and to produce the communication protocols required. The system includes all the essential functions for centralised control and monitoring. And the use of modern network technology means that the control centre can be located anywhere.

Exchanging information with other systems

Examples of external systems that we interact with in our deliveries:

  • Interlockings (computerised or relay-based).

  • Passenger information

  • Timetable planning tools.

  • Train positioning systems (GPS, RBC, AVLS, AVI, etc.).

  • External and neighbouring CTC systems.

  • Trackside equipment.

  • Freight yard objects.

  • Traction feeding system.

The protocols to other systems are always supplied with detailed logging functions, giving complete control over the interfaces. By importing and using information from other systems, the user obtains a uniform presentation which makes monitoring and control more manageable.


Communication with interlockings

Cactus TMS and CTC use different types of PLCs/RTUs to communicate with older relay interlockings. Modern electronic interlockings are connected via the interlocking supplier’s protocol. Most of these protocols are implemented. Contact us for a further information.

Our own personnel develop the protocols needed. The protocols are always supplied with detailed logging, affording us complete control over interfaces. If new projects require new protocols, this is a natural part of the project.


Compatible with ERTMS L2

Cactus has supplied a completely new traffic management system which is compatible with ERTMS L2. The Swedish Transport Administration is using the system to roll out the new European standard in Sweden.

The first system has been installed at the traffic management centre in Boden and controls traffic on the Haparanda line. For this delivery, Cactus Rail is a sub-contractor to Ansaldo STS Sweden.


SCADA/DCS functions for control and monitoring

Our traffic control system is a bespoke system for railways. But SCADA/DCS functions can be connected to the system as an extra:

  • Access to Cactus’s own substations, fully integrated as so-called DCS stations, which means that configuration changes are always made directly online from the server, for example.

  • Protocols for a large number of PLC/RTU systems, including OPC UA.

  • Indication and control via various field bus systems ands I/Os such as Profibus, EtherCat, Dupline etc.

  • Integration of other systems such as traction monitoring via IEC60870.

  • Collection, long-term storage and monitoring of analogue measurements such as temperatures. Presentation may be by way of images, graphs or reports.


Poor connections, long distances?

We have extensive knowledge of establishing communication with other systems, even over poor connections and long distances. This gives you an excellent foundation for streamlining operations, as the control centre can be located wherever the customer wants – in one or more places.


CENELEC standards

In the development work, Cactus has followed CENELEC standards EN 50 126, EN 50 128 and EN 50 129.