1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 <2022> 2023 2024 | Index | 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 <2022> 2023 2024 |
<== Date ==> | <== Thread ==> |
---|
Subject: | Re: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed |
From: | "Marco A. Barra Montevechi Filho via Tech-talk" <tech-talk at aps.anl.gov> |
To: | Mark Rivers <rivers at cars.uchicago.edu> |
Cc: | Junior Cintra Mauricio <junior.mauricio at lnls.br>, "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>, João Pedro Burle Ishida <joao.ishida at lnls.br> |
Date: | Tue, 19 Apr 2022 18:59:51 +0000 |
Hello, Mark. Thank for the constant help!
Thats what seems weird to me: since the error only happens when we change the precision and ASLO, and since the exception indicates an incorrect command, can i just assume that the equipment is made to only accept commands that write the P parameter with a certain precision? In a way that when the precision is changed the equipment refuses to accept the command? Im sorry for forgetting the complete message. The error message is: ## Start any sequence programs #seq sncxxx,"user=gabrielfedelHost"
2022/04/19 15:27:21.537 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P Modbus exception=3
2022/04/19 15:27:21.537 PNR:EU2408:P devAsynInt32::processCallbackOutput process error
epics>I append the complete IOC initialization log in the end of this email. Also, i noticed something else that seems important: in the .db file, there is the following comment right next to the :P variable: # Proportional gain term: address 351 # Note this must be set to operate engineering units (not %) for the precision to be correct
# otherwise it is a fixed precision of 1 decimal place
However, address 351 is not even mentioned in Eurotherm modbus communication manual and setting drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Wr_P", "EMODBUS", 1, 6, 351, 3, 0, 1000, ""); instead of drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Wr_P", "EMODBUS", 1, 6, 6, 3, 0, 1000, ""); results in 2022/04/19 15:54:43.225 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P Modbus exception=2 2022/04/19 15:54:43.226 PNR:EU2408:P devAsynInt32::processCallbackOutput process error
epics>Which i think means that this address is not supposed to be accessed. Best regards, Marco #!/usr/local/epics-nfs/apps/Eurotherm2408/1.0/bin/linux-x86_64/Eurotherm < /usr/local/epics-nfs/apps/Eurotherm2408/1.0/iocBoot/iocEurotherm2408/envPaths
epicsEnvSet("IOC","iocEurotherm2408")
epicsEnvSet("TOP","/usr/local/epics-nfs/apps/Eurotherm2408/1.0")
epicsEnvSet("NFS","/usr/local/epics-nfs")
epicsEnvSet("SUPPORT","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support")
epicsEnvSet("ASYN","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/asyn-R4-33")
epicsEnvSet("STREAM","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/stream-R2-7-7c")
epicsEnvSet("MODBUS","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/modbus-R2-11")
epicsEnvSet("EPICS_BASE","/usr/local/epics-nfs/base/R3.15.6")
epicsEnvSet("ALIVE","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/alive-R1-1-0")
epicsEnvSet("AUTOSAVE","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/autosave-R5-9")
epicsEnvSet("BUSY","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/busy-R1-7")
epicsEnvSet("CALC","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/calc-R3-7-1")
epicsEnvSet("CAMAC","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/camac-R2-7-1")
epicsEnvSet("CAPUTRECORDER","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/caputRecorder-R1-7-1")
epicsEnvSet("DAC128V","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/dac128V-R2-9")
epicsEnvSet("DELAYGEN","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/delaygen-R1-2-0")
epicsEnvSet("DXP","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/dxp-R5-0")
epicsEnvSet("DXPSITORO","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/dxpSITORO-R1-1")
epicsEnvSet("DEVIOCSTATS","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/iocStats-3-1-15")
epicsEnvSet("IP","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/ip-R2-19-1")
epicsEnvSet("IPAC","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/ipac-2-15")
epicsEnvSet("IP330","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/ip330-R2-9")
epicsEnvSet("IPUNIDIG","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/ipUnidig-R2-11")
epicsEnvSet("LOVE","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/love-R3-2-6")
epicsEnvSet("LUA","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/lua-R1-2-2")
epicsEnvSet("MCA","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/mca-R7-7")
epicsEnvSet("MEASCOMP","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/measComp-R2-1")
epicsEnvSet("MODBUS_2_10_1","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/modbus-R2-10-1")
epicsEnvSet("MOTOR","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/motor-R6-10-1")
epicsEnvSet("OPTICS","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/optics-R2-13-1")
epicsEnvSet("QUADEM","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/quadEM-R9-1")
epicsEnvSet("SOFTGLUE","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/softGlue-R2-8-1")
epicsEnvSet("SOFTGLUEZYNQ","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/softGlueZynq-R2-0-1")
epicsEnvSet("SSCAN","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/sscan-R2-11-1")
epicsEnvSet("STD","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/std-R3-5")
epicsEnvSet("VAC","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/vac-R1-7")
epicsEnvSet("VME","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/vme-R2-9")
epicsEnvSet("YOKOGAWA_DAS","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/Yokogawa_DAS-R1-0-0")
epicsEnvSet("XXX","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/xxx-R6-0")
epicsEnvSet("AREA_DETECTOR","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/areaDetector-R3-3-1")
epicsEnvSet("ADCORE","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/areaDetector-R3-3-1/ADCore")
epicsEnvSet("ADSUPPORT","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/areaDetector-R3-3-1/ADSupport")
epicsEnvSet("ADSIMDETECTOR","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/areaDetector-R3-3-1/ADSimDetector")
epicsEnvSet("SNCSEQ","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/seq-2-2-5")
epicsEnvSet("ALLEN_BRADLEY","/usr/local/epics-nfs/modules/R3.15.6/synApps/R6.0/support/allenBradley-2-3")
epicsEnvSet("BL","PNR")
# Configuração da linha de luz
< /usr/local/epics-nfs/apps/Eurotherm2408/1.0/iocBoot/iocEurotherm2408/Eurotherm.config
epicsEnvSet("SERIAL_PORT","COM10")
epicsEnvSet("E_SHM","eurotherm")
epicsEnvSet("BAUD","9600")
epicsEnvSet("MBUS_SL_ADDR",1)
epicsEnvSet("MBUS_READ",3)
epicsEnvSet("MBUS_WRITE",6)
epicsEnvSet("MBUS_POLL",1000)
epicsEnvSet("STREAM_PROTOCOL_PATH","/usr/local/epics-nfs/apps/Eurotherm2408/1.0/db")
cd /usr/local/epics-nfs/apps/Eurotherm2408/1.0
## Register all support components
dbLoadDatabase "dbd/Eurotherm.dbd"
Eurotherm_registerRecordDeviceDriver pdbbase
## Configured by http://cars9.uchicago.edu/software/epics/modbusDoc.html
## Parameters to ModBus on /dev/ttyUSB0
## used to USB
#drvAsynSerialPortConfigure("EMODBUS","10.20.41.43:4001",0,0,0)
drvAsynIPPortConfigure("EMODBUS","10.20.41.43:4002",0,0,1)
###############################################################################
###############################################################################
# Set up ASYN HYPPIE ports
# pxiCreateSM(asyn, shared memory name)
# drvasynPXIConfig(port, COM port, shared memory name, serial type)
#asynSetOption("EMODBUS", 0, "${BAUD}", "9600")
#asynSetOption("EMODBUS", 0, "bits", "8")
#asynSetOption("EMODBUS", 0, "parity", "none")
#asynSetOption("EMODBUS", 0, "stop", "1")
## Configure
modbusInterposeConfig("EMODBUS",1,3000,0)
# drvModbusAsynConfigure(portName, => create a name
# tcpPortName, => defined before
# slaveAddress, => defined on equipament
# modbusFunction, => 3 : Read Holding Register (16-bit)
# modbusStartAddress, => adress of register
# modbusLength, => the length of data segment
# dataType, => default data type
# pollMsec,
# plcType); => Equipament name, not used
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Rd_ATUNE", "EMODBUS", 1,3, 3072, 6,0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Wr_ATUNE", "EMODBUS", 1,6, 3072, 6,0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Rd_PV", "EMODBUS", 1,3, 1, 3,0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Wr_PV", "EMODBUS", 1, 6, 1, 3, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Rd_WSP", "EMODBUS", 1,3, 5, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Rd_RR", "EMODBUS", 1, 3, 35, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Wr_RR", "EMODBUS", 1, 6, 35, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Rd_MAN", "EMODBUS", 1, 3, 273, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Wr_MAN", "EMODBUS", 1, 6, 273, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Rd_PID", "EMODBUS", 1, 3, 351, 3, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Wr_PID", "EMODBUS", 1, 6, 351, 3, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Rd_P", "EMODBUS", 1, 3, 6, 3, 0, 1000, "");
#####ADDED FOR DEBUG. ###
asynSetTraceIOMask Eurotherm_EMODBUS_1_1_Wr_P -1 HEX
PNR-Eurotherm2408-B-Eurotherm01.cmd line 73: Illegal integer 'HEX'
asynSetTraceMask Eurotherm_EMODBUS_1_1_Wr_P -1 ERROR|DRIVER
PNR-Eurotherm2408-B-Eurotherm01.cmd line 75: Illegal integer 'ERROR|DRIVER'
#####################################
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Rd_I", "EMODBUS", 1, 3, 8, 3, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Rd_D", "EMODBUS", 1, 3, 9, 3, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Wr_P", "EMODBUS", 1, 6, 6, 3, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Wr_I", "EMODBUS", 1, 6, 8, 3, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Wr_D", "EMODBUS", 1, 6, 9, 3, 0, 1000, "");
#############################################################################################################################
#Commands added 19/04/2022 by Marco Montevechi, Junior Cintra and Jo o Pedro Burle Ishida
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Rd_PROG", "EMODBUS", 1, 3, 22, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Wr_PROG", "EMODBUS", 1, 6, 22, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Rd_PSP", "EMODBUS", 1, 3, 163, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_1_Wr_PSP", "EMODBUS", 1, 6, 163, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Rd_CYC", "EMODBUS", 1, 3, 59, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Wr_CYC", "EMODBUS", 1, 6, 59, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Rd_SEG", "EMODBUS", 1, 3, 56, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Wr_SEG", "EMODBUS", 1, 6, 56, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Rd_STYP", "EMODBUS", 1, 3, 29, 1, 0, 1000, "");
drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Wr_STYP", "EMODBUS", 1, 6, 29, 1, 0, 1000, "");
#############################################################################################################################
## Load record instances
dbLoadRecords("db/dbEurotherm2408.db", "BL=PNR")
Error: syntax error
at or before "Readback" in file "db/dbEurotherm2408.db" line 423
## Load record instances
#dbLoadRecords("db/xxx.db","user=gabrielfedelHost")
cd /usr/local/epics-nfs/apps/Eurotherm2408/1.0/iocBoot/iocEurotherm2408
iocInit
Starting iocInit
############################################################################
## EPICS R3.15.6
## EPICS Base built Sep 27 2021
############################################################################
iocRun: All initialization complete
## Start any sequence programs
#seq sncxxx,"user=gabrielfedelHost"
2022/04/19 15:47:39.215 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P Modbus exception=3
2022/04/19 15:47:39.215 PNR:EU2408:P devAsynInt32::processCallbackOutput process error
epics>From: Mark Rivers <rivers at cars.uchicago.edu>
Sent: 19 April 2022 15:12 To: Marco A. Barra Montevechi Filho <marco.filho at lnls.br> Cc: Junior Cintra Mauricio <junior.mauricio at lnls.br>; João Pedro Burle Ishida <joao.ishida at lnls.br>; tech-talk at aps.anl.gov <tech-talk at aps.anl.gov> Subject: RE: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Hi Marco,
This is an ao record and one of the links is P.ASLO. This means that depending on whether the link is broken the actual integer value being written to the device could change, since ASLO affects that.
According to page 48 of the Modbus reference document https://epics-modbus.readthedocs.io/en/latest/_downloads/c210fb586108fe21da5a09d202ab86d1/Modbus_Application_Protocol_V1_1b.pdf
Modbus exception 3 is “ILLEGAL DATA VALUE”. This means: A value contained in the query data field is not an allowable value for server (or slave). This indicates a fault in the structure of the remainder of a complex request, such as that the implied length is incorrect. It specifically does NOT mean that a data item submitted for storage in a register has a value outside the expectation of the application program, since the MODBUS protocol is unaware of the significance of any particular value of any particular register.
So according to the specification exception 3 should only be returned when the command syntax is wrong, not if the data value is outside the allowed range. However, it is always possible that Eurotherm has not following the spec, and it is returning exception 3 for a data value outside the allowed range.
Please send the complete error message when you get the exception.
It may also be helpful to put the following 2 commands in your startup script: asynSetTraceIOMask Eurotherm_EMODBUS_1_1_Wr_P -1 HEX asynSetTraceMask Eurotherm_EMODBUS_1_1_Wr_P -1 ERROR|DRIVER
That will show the Modbus messages sent to and received from the device.
Mark
From: Tech-talk <tech-talk-bounces at aps.anl.gov>
On Behalf Of Marco A. Barra Montevechi Filho via Tech-talk
Hello all and good evening. where MBUS_SL_ADDR=1, MBUS_WRITE=6 and MODBUS_POLL=1000.
field(DESC, "P Param") field(DTYP, "asynInt32") field(OUT, "@asyn(Eurotherm_EMODBUS_1_1_Wr_P,0,1000)MODBUS_DATA") } and it works fine if the PV name doesnt end stop in ":P". If the PV name is only "${BL}:EU2408:P", then we get modbus exception 3 when initializing the IOC and the PV doesnt
work. field(OMSL, "closed_loop") field(DOL, "${BL}:EU2408:CALCASLO PP") field(OUTA, "${BL}:EU2408:SP.ASLO") field(OUTB, "${BL}:EU2408:SP:RBV.ASLO") field(OUTC, "${BL}:EU2408:RR.ASLO") field(OUTD, "${BL}:EU2408:RR:RBV.ASLO") field(OUTE, "${BL}:EU2408:PV:RBV.ASLO") field(OUTF, "${BL}:EU2408:P.ASLO") #HERE field(OUTG, "${BL}:EU2408:P:RBV.ASLO") field(FLNK, "${BL}:EU2408:SETPREC") } field(OMSL, "closed_loop") field(DOL, "${BL}:EU2408:PREC.RVAL") field(OUTA, "${BL}:EU2408:SP.PREC PP") field(OUTB, "${BL}:EU2408:SP:RBV.PREC PP") field(OUTC, "${BL}:EU2408:RR.PREC PP") field(OUTD, "${BL}:EU2408:RR:RBV.PREC PP") field(OUTE, "${BL}:EU2408:PV:RBV.PREC PP") field(OUTF, "${BL}:EU2408:P.PREC PP") ######HERE field(OUTG, "${BL}:EU2408:P:RBV.PREC PP") }
Aviso Legal: Esta mensagem e seus anexos podem conter informações confidenciais e/ou de uso restrito. Observe atentamente seu conteúdo e considere eventual consulta ao remetente antes de copiá-la, divulgá-la ou distribuí-la. Se você recebeu esta mensagem por engano, por favor avise o remetente e apague-a imediatamente. Disclaimer: This email and its attachments may contain confidential and/or privileged information. Observe its content carefully and consider possible querying to the sender before copying, disclosing or distributing it. If you have received this email by mistake, please notify the sender and delete it immediately. |