Re: Using subArray record

["Marco A. Barra Montevechi Filho via Tech-talk" <tech-talk at aps.anl.gov>]

As Érico Rolim pointed out, we could discover via 

caget PREFIX:GetRnvWav.VAL[0]

That the array was being interpreted as a string, not an actual waveform array. We ended up making the protocol interpret the array instead of a PV because the problem was in converting an scalcout into a waveform.

That way the subArray record worked nice. The question that remains is: is there an easy way to transform an scalcout of numbers separated by spaces into a waveform?

Thanks,

Marco

---

From: Marco A. Barra Montevechi Filho
Sent: 10 March 2023 12:52
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: Using subArray record

 

Hi all. Im trying to use the subArray method to select a single element of a waveform record. The waveform record receives its value from an scalcout record:

record(scalcout,"PREFIX:GetRngCalc") {

  field (DESC, "Calculate channel's range")

  field (INAA, "PREFIX:GetRng CP")

  field (CALC, "(AA-'RNG ')")

}

record(waveform, "PREFIX:GetRngWav"){

field (DESC, "Waveform for ranges")

field (INP, "PREFIX:GetRngCalc.SVAL CP")

}

after the ioc initialization:

dbpf PREFIX:GetRng "RNG 0 1 2 3"
dbgf PREFIX:GetRngWav
DBR_STRING:      "0 1 2 3"

So i suppose it works. However, when i try to add the record:

record(subArray,"PREFIX:INDEX:GetRngCalc") {

  field (DESC, "Calculate channel's range")

  field (INP, "PREFIX:GetRngWav CP")

  field (MALM, "4")

  field (NELM, "1")

  field (INDX, "1")

}

And i try:

dbgf PREFIX:INDEX:GetRngCalc

I get nothing. Am i doing something wrong?
Thanks in advance for any help.


My ioc initialization:

#!../../bin/linux-x86_64/Eras

# https://gitlab.cnpem.br/SOL/synthesizer - Erasv2-ERAS.cmd 1st revision

< envPaths

epicsEnvSet("IOC","iocEras")

epicsEnvSet("TOP","/home/ABTLUS/marco.filho/eras")

epicsEnvSet("ASYN","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.1/support/asyn-R4-36")

epicsEnvSet("RECCASTER","/usr/local/epics-nfs/apps/recsync/stable/client")

epicsEnvSet("STREAM","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.1/support/StreamDevice-2-8-9")

epicsEnvSet("CALC","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.1/support/calc-R3-7-3")

epicsEnvSet("EPICS_BASE","/usr/local/epics-nfs/base/R3.15.6")

epicsEnvSet("BEAMLINE","CAX")

epicsEnvSet("HUTCH","A")

epicsEnvSet("IOCNAME","ERAS022")

epicsEnvSet("STREAM_PROTOCOL_PATH", "/home/ABTLUS/marco.filho/eras/ErasApp/Db")

cd "/home/ABTLUS/marco.filho/eras"

###############################################################################

# Register all support components

dbLoadDatabase "dbd/Eras.dbd"

Eras_registerRecordDeviceDriver (pdbbase)

###############################################################################

# Set up ASYN ports

drvAsynIPPortConfigure("EA", "10.30.13.27:3000")

################################################################################

# Load record instances

# General

dbLoadRecords("ErasApp/Db/dbEras.db","BL=CAX:,HUTCH=A:,M=ERAS022:,PORT=EA")

# Channel 1

dbLoadRecords("ErasApp/Db/dbEras_channel.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=1,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=1,SC=0,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=1,SC=1,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=1,SC=2,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=1,SC=3,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=1,SC=4,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=1,SC=5,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=1,SC=6,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=1,SC=7,PORT=EA")

# Channel 2

dbLoadRecords("ErasApp/Db/dbEras_channel.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=2,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=2,SC=0,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=2,SC=1,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=2,SC=2,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=2,SC=3,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=2,SC=4,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=2,SC=5,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=2,SC=6,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=2,SC=7,PORT=EA")

# Channel 3

dbLoadRecords("ErasApp/Db/dbEras_channel.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=3,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=3,SC=0,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=3,SC=1,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=3,SC=2,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=3,SC=3,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=3,SC=4,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=3,SC=5,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=3,SC=6,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=3,SC=7,PORT=EA")

# Channel 4

dbLoadRecords("ErasApp/Db/dbEras_channel.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=4,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=4,SC=0,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=4,SC=1,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=4,SC=2,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=4,SC=3,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=4,SC=4,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=4,SC=5,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=4,SC=6,PORT=EA")

dbLoadRecords("ErasApp/Db/dbEras_scale_label.db","BL=CAX:,HUTCH=A:,M=ERAS022:,CH=4,SC=7,PORT=EA")

###############################################################################

# Start EPICS

cd "/home/ABTLUS/marco.filho/eras/iocBoot/iocEras"

iocInit

Starting iocInit

############################################################################

## EPICS R3.15.6

## EPICS Base built Sep 27 2021

############################################################################

cas warning: Configured TCP port was unavailable.

cas warning: Using dynamically assigned TCP port 41289,

cas warning: but now two or more servers share the same UDP port.

cas warning: Depending on your IP kernel this server may not be

cas warning: reachable with UDP unicast (a host's IP in EPICS_CA_ADDR_LIST)

iocRun: All initialization complete

dbpf CAX:A:ERAS022:GetRng "RNG 1 1 2 3"

DBR_STRING:          "RNG 1 1 2 3"      

dbgf CAX:A:ERAS022:CH1:GetRngCalc

dbgf CAX:A:ERAS022:CH2:GetRngCalc

epics> dbgf CAX:A:ERAS022:GetRngWav

DBR_STRING:          "1 1 2 3"          

epics> dbgf CAX:A:ERAS022:CH1:GetRngCalc

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