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Updated: 06.04.2021


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The template file

Change to the directory ~/G/TRAINING/T1 and edit the file
G_TRAINING_T1_COOLER.template as following:

record (ai, "$(DEVICE)-COOL:TEMP1")
{
    field (DESC, "Sensor T1")
    field (DTYP, "Hy8401")       
    field (INP,  "#$(ADC1) @")    
    field (EGU,  "Grad C")
    field (PREC, "1")
    field (LINR, "LINEAR")
    field (EGUF, "100")
    field (EGUL, "-100")
    field (HOPR, "100")
    field (LOPR, "0")
    field (HIGH, "51")
    field (HIHI, "52")
    field (SCAN, ".1 second")   
}

record (ai, "$(DEVICE)-COOL:TEMP2")
{
    field (DESC, "Sensor T2")
    field (DTYP, "Hy8401")  
    field (INP,  "#$(ADC2) @")
    field (EGU,  "Grad C")
    field (PREC, "1")
    field (LINR, "LINEAR")
    field (EGUF, "100")
    field (EGUL, "-100")
    field (HOPR, "100")
    field (LOPR, "0")
    field (HIGH, "51")
    field (HIHI, "52")
    field (SCAN, ".1 second")
}

record (calc, "$(DEVICE)-COOL:COMPARE")
{
    field (DESC, "Calculation")
    field (INPA, "$(DEVICE)-COOL:TEMP1")
    field (INPB, "$(DEVICE)-COOL:TEMP2")
    field (INPC, "10")
    field (CALC, "((A+B)/2) > C")
    field (SCAN, "10 second")
    field (FLNK, "$(DEVICE)-COOL:SW PP")
}

record (bo, "$(DEVICE)-COOL:SW")
{
    field (DESC, "Switch for Cooler")
    field (DOL,  "$(DEVICE)-COOL:COMPARE")
    field (ZNAM, "OFF")
    field (ONAM, "ON")
    field (DTYP, "Dim8001")
    field (OUT,  "#$(OUTPUT) @")
    field (OMSL, "closed_loop")
}

Updated: 06.04.2021   Source: /afs/psi.ch/project/epics/webhosting/training/handouts/e_basehandouts/node33.html