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<== Date ==> <== Thread ==>

Subject: PV alias with logical names
From: Bo Jakobsen <lister@f77.dk>
To: EPICS Tech Talk <tech-talk@aps.anl.gov>
Date: Fri, 5 Oct 2018 11:11:35 +0200

Hi,

I am setting up a new EPICS system for monitoring process values in our labs.

I will for now be using a temperature monitoring box which has a number of channels, so PV will be e.g.

lab1:Tbox1:T1
lab1:Tbox1:T2
lab1:Tbox1:T3

...

However, I would like to have PV names for the users of the system which directly reflects what is measured, e.g.

lab1:T:CoolWater
lab1:T:Cryostat
lab1:T:Enviroment

I was considering to set up an extra soft IOC with records like:

record(ai, "lab1:T:CoolWater") {
  field(DESC, "Lab 1 Cooling water temperature")
  field(DTYP, "Soft Channel")
  field(INP, "lab1:Tbox1:T1 CP")
  field(PREC, "3")
  field(EGU, "K")
}

and then define alarm limits and PV archiving based on this.

Is this the right way to obtain logical names, and is there any downsides of having monitor PV's.

Best

Bo



Replies:
RE: PV alias with logical names Freddie Akeroyd - UKRI STFC

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