The recommended convention for process variable names at the APS is;
All beamline PVs should begin with their sector number [preferred] or lower case letters.
All accelerator PVs (those on the .2 subnet) should begin with capital letters.
Examples of preferred beamline PV prefixes...
Example of conforming non-preferred beamline PV prefix...
Example of non-conforming beamline PV prefix...
Since this is a rule, then we must have exceptions! This naming convention only came in to existence after many beamlines had been built. Some beamlines had adopted PV prefixes starting with a capital letter. These are "grand fathered" in to our scheme. These being...
BM*, BMT*, ID* - Sector 19
The rationale behind how this convention arose is explained in this note and in a presentation, given at the December 2003 TWG meeting.
|Further recommendation for beamline PVs|
Within the APS-XOR beam lines, we try to adhere to a particular IOC naming convention.
Many sectors, have adopted the following convention. If you are looking for a slightly more detailed convention to follow this is a good model.
The PV prefix should consist of the following elements... sector#, source, station, separator. For example
At a glance, this tells you where a PV is associated with. More examples are given in the preferred examples shown above
Also, advise that lower case is preferred unless there is a compelling case for upper case. AND that the difference between upper and lower case is significant.
is not the same as