WorldFIP is a
fieldbus widely used at CERN; there are more than 10’000 WorldFIP nodes
installed all around the LHC.
WorldFIP is used to connect critical sensors and actuators (by equipment
groups like Power Converters, Cryogenics, Beam Instrumentation etc) with
the control and supervision level.
The WorldFIP nodes are radiation-tolerant and are installed close the
LHC magnets. The WorldFIP masters are always installed in radiation safe
zones. One master is managing typically around 50 nodes.
The signal of the bus is 5V
We used to purchase the WorldFIP masters and the nodes by the company
Alstom. However Alstom has been gradually
stopping all the WorldFIP support, as new Ethernet based solutions are
At CERN we need to provide WorldFIP support until at least 2035, the
end-of-life of the HL-LHC as it would be very costly to change all the
cabling and the equipment to another radiation-tolerant solution.
The fact that there is no more WorldFIP support by Alstom is the main
reason for the design and support our own WorldFIP equipment at CERN.
The migration of the all the 500 Alstom masters to the new masterFIP
is targeted for the end of 2018, CERN's Long Shutdown 2.
The project has been developed following the Functional
and provides a complete replacement of the Alstom solution for CERN
applications. It is divided into four sub-projects:
Mezzanine board schematic and layout, to be combined with a