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Updated: 06.04.2021


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Naming Convention at SLS

EPICS records need unique names. This can only be achieved with a naming convention which is mandatory for all record names. The rules of the convention differ from institute to institute, there is no global agreement.

At the SLS, a record name consists of five parts:

[1][2] - [3] - [4] : [5]

1. Kingdom (1 character):
   A=Accelerator, X=Beamline, I=Infrastructure, M=Test
2. Domain (4 characters):
   Domain is a functional region with slightly different structure depending on the kingdom:
   • All accelerators (Linac, Ring, Booster, etc.) share the same subsystems (magnets, vacuum, diagnostics etc.). Thus domain is a cell of a system matrix with the first pair of chars identifying the accelerator (LI, RI, BO...) and the second pair the technical subsystem (MA, VA, DI...)
   • In case of the experiment the identifier consists of two numbers for the sector, a character for the source and another one to distinguish different beamlines on the same light source, e.g. 04SA.
3. Device (Optional):
   Since different systems have different topologies, the 3rd and 4th field of the name string have different meanings.
4. Component:
   Since different systems have different topologies, the 3rd and 4th field of the name string have different meanings.
5. Function (Optional):
   An arbitrary description of the function the record provides.

Updated: 06.04.2021   Source: /afs/psi.ch/project/epics/webhosting/training/handouts/e_basehandouts/node20.html