Experimental Physics and
Industrial Control System

"Gofron, Kazimierz" <[email protected]> · Thu, 28 Apr 2016 20:58:45 +0000

Hello Tim,

Good to know field(CALC, "@H") switch for transform, scalcout, and acalcout records.

Kaz

-----Original Message-----
From: Mooney, Tim M. [mailto:[email protected]] 
Sent: Wednesday, April 27, 2016 1:33 AM
To: Gofron, Kazimierz; [email protected]
Subject: RE: calc question

Hi Kaz,

I don't know of a more efficient expression for calc or calcout records.
The transform, scalcout, and acalcout records have the operator '@', which would allow you to replace
    field(CALC, "(H=0)?A:(H=1)?B:(H=2)?C:(H=3)?D:(H=4)?E:(H=5)?F:G")
with 
    field(CALC, "@H")

Tim Mooney ([email protected]) (630)252-5417 Beamline Controls Group (www.aps.anl.gov) Advanced Photon Source, Argonne National Lab

________________________________________
From: [email protected] [[email protected]] on behalf of Gofron, Kazimierz [[email protected]]
Sent: Tuesday, April 26, 2016 11:04 PM
To: [email protected]
Subject: calc question

Hi,

Perhaps it was discussed previously,
For a current measuring instrument (i404), I am setting measuring range from mbbo record.

record(mbbo, "$(Sys)$(Dev)Cmd:Rng-Sel") {
  field(VAL, "1.0e-9")
  field(ZRST, "1.0e-9")
  field(ONST, "8.0e-9")
  field(TWST, "1.0e-8")
  field(THST, "1.0e-7")
  field(FRST, "1.0e-6")
  field(FVST, "1.0e-5")
  field(SXST, "2.0e-5")
  field(FLNK, "$(Sys)$(Dev)Cmd:Rng-Calc")
  field(DESC, "SELECTION OF CURRENT RANGES") }

record(calc, "$(Sys)$(Dev)Cmd:Rng-Calc") {
  field(SCAN, "Passive")
  field(A, "1.0e-9")
  field(B, "8.0e-9")
  field(C, "1.0e-8")
  field(D, "1.0e-7")
  field(E, "1.0e-6")
  field(F, "1.0e-5")
  field(G, "2.0e-5")
  field(INPH, "$(Sys)$(Dev)Cmd:Rng-Sel")
  field(CALC, "(H=0)?A:(H=1)?B:(H=2)?C:(H=3)?D:(H=4)?E:(H=5)?F:G")
  field(FLNK, "$(Sys)$(Dev)Val:Rng-SP")
}

record(ao, "$(Sys)$(Dev)Val:Rng-SP") {
  field(SCAN, "Passive")
  field(FLNK, "$(Sys)$(Dev)Cmd:CapChk-Calcout")
  field(OMSL, "closed_loop")
  field(OIF, "Full")
  field(DOL, "$(Sys)$(Dev)Cmd:Rng-Calc.VAL")
  field(EGU, "A")
}

This seems to work quite well, but there has to be a better way than CALC 'switch'. Anyone has a better solution?

Kazimierz

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System