Experimental Physics and
Industrial Control System
| 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: | Mark Rivers via Tech-talk <tech-talk at aps.anl.gov> |
| To: | "Marco A. Barra Montevechi Filho" <marco.filho at lnls.br> |
| 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: | Wed, 20 Apr 2022 15:50:15 +0000 |
|
Hi Marco, Your explanation of how this works is clear, the implied decimal point means that the ASLO of 0.1 or 0.01 is indeed required. So caputting into :P variable makes the epics terminal print: epics> 2022/04/20 08:40:18.579 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P WRITE_SINGLE_REGISTER address=06 value=0x3e80 2022/04/20 08:40:18.641 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P Modbus exception=3 2022/04/20 08:40:18.641 PNR:EU2408:P devAsynInt32::processCallbackOutput process error
That is a very useful diagnostic message. It appears to me that the Modbus driver completed a valid WRITE_SINGLE_REGISTER operation to address 6. The data it wrote was 0x3e80
= 16000 decimal. If the implied decimal point is 2 digits that would be 160.00. For some reason the Eurotherm is returning Modbus exception 3 when that value is written. Is that an invalid setting for the P parameter? If it is returning exception 3 because
160.00 is an invalid setting then they are violating the Modbus spec, because the spec says exception 3 should NOT be used to signal an invalid setting, it is only used to indicate an invalid Modbus message. Are there values you can write to P that do not
generate the exception? Mark From: Marco A. Barra Montevechi Filho <marco.filho at lnls.br>
Hi, Mark! I corrected the asynSetTraceIOMask and asynSetTraceMask errors you pointed, thanks. About the error in the
dbLoadRecords("db/dbEurotherm2408.db", "BL=PNR"), it was a typo in one of the records, its also corrected. I found the communication manual of the equipment to compare the accepted integer values and according to it: "The protocol is also limited to integer communication only. Series 2000 instruments allow the user to configure either integer or full resolution. In integer mode all parameters will be rounded to the nearest integer value, whereas in full resolution mode the decimal point position will be implied so that 100.01 would be transmitted as 10001." And indeed caputting <PVPREFFIX>:P to a value such as 15001 makes caget <PVPREFFIX>:P:RBV return 150.01. So i figure making
the <PVPREFFIX>:P.ASLO field a non-integer is simply a logic error(?) that i intend to remove. At the end of this email i append the IOC initialization log with typos corrected and TraceMasks added just to be coherent. I also added asynSetTraceIOMask Eurotherm_EMODBUS_1_1_Wr_I -1 4 and asynSetTraceMask Eurotherm_EMODBUS_1_1_Wr_I -1 9 because i know this function worked well with the <PVPREFIX>:I variable.
Finally, about the PV being processed in initialization even without PINI field, i believe (although i am not sure) that it is caused by the other records that reference the PV: record(dfanout, "${BL}:EU2408:SETASLO") { field(OMSL, "closed_loop") field(DOL, "${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") field(OUTG, "${BL}:EU2408:P:RBV.ASLO") field(FLNK, "${BL}:EU2408:SETPREC") } record(dfanout, "${BL}:EU2408:SETPREC") { field(OMSL, "closed_loop") field(DOL, "${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") field(OUTG, "${BL}:EU2408:P:RBV.PREC PP") } record(calcout, "${BL}:EU2408:CALCASLO") { field(INPA, "${BL}:EU2408:PREC.RVAL NPP") field(CALC, "A==1?0.1:0.01") } record(mbbo, "${BL}:EU2408:PREC") { field(ZRST, "1 Decimal Place") field(ONST, "2 Decimal Places") field(ZRVL, "1") field(ONVL, "2") field(FLNK, "${BL}:EU2408:SETASLO") field(RVAL, "4") field(PINI, "YES") } So i think ${BL}:EU2408:PREC triggers all the process. Thanks so much for your attention! If this logic error is indeed what is causing trouble, then i think the problem is solved. Best regards, Marco OBS - IOC initialization log: #!/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, ""); 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, ""); #####ADDED FOR DEBUG. DELETE LATER### asynSetTraceIOMask Eurotherm_EMODBUS_1_1_Wr_P -1 4 asynSetTraceMask Eurotherm_EMODBUS_1_1_Wr_P -1 9 asynSetTraceIOMask Eurotherm_EMODBUS_1_1_Wr_I -1 4 asynSetTraceMask Eurotherm_EMODBUS_1_1_Wr_I -1 9 ##################################### ############################################################################################################################# #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, ""); drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Rd_STAT", "EMODBUS", 1, 3, 23, 1, 0, 1000, ""); drvModbusAsynConfigure("Eurotherm_EMODBUS_1_0_Wr_STAT", "EMODBUS", 1, 6, 23, 1, 0, 1000, ""); ############################################################################################################################# ## Load record instances dbLoadRecords("db/dbEurotherm2408.db", "BL=PNR") ## 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 ############################################################################ 2022/04/20 08:37:33.100 drvModbusAsyn::readInt32 port Eurotherm_EMODBUS_1_1_Wr_P function=0x6, offset=00, value=0x5dc 2022/04/20 08:37:33.100 drvModbusAsyn::readInt32 port Eurotherm_EMODBUS_1_1_Wr_I function=0x6, offset=00, value=0x1c 2022/04/20 08:37:33.602 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P WRITE_SINGLE_REGISTER address=06 value=0x3a98 iocRun: All initialization complete ## Start any sequence programs #seq sncxxx,"user=gabrielfedelHost" 2022/04/20 08:37:33.688 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P Modbus exception=3 2022/04/20 08:37:33.688 PNR:EU2408:P devAsynInt32::processCallbackOutput process error
epics> So caputting into :P variable makes the epics terminal print: epics> 2022/04/20 08:40:18.579 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P WRITE_SINGLE_REGISTER address=06 value=0x3e80 2022/04/20 08:40:18.641 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P Modbus exception=3 2022/04/20 08:40:18.641 PNR:EU2408:P devAsynInt32::processCallbackOutput process error
2022/04/20 08:40:47.496 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P WRITE_SINGLE_REGISTER address=06 value=0x3a98 2022/04/20 08:40:47.559 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_P Modbus exception=3 2022/04/20 08:40:47.559 PNR:EU2408:P devAsynInt32::processCallbackOutput process error and caputting into :I variable makes the epics terminal print: 2022/04/20 08:41:15.370 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_I WRITE_SINGLE_REGISTER address=010 value=0x1d 2022/04/20 08:41:15.406 drvModbusAsyn::writeInt32 port Eurotherm_EMODBUS_1_1_Wr_I function=0x6, modbusAddress=010, buffer[0]=0x1d, bufferLen=1 2022/04/20 08:41:20.447 drvModbusAsyn::doModbusIO port Eurotherm_EMODBUS_1_1_Wr_I WRITE_SINGLE_REGISTER address=010 value=0x1c 2022/04/20 08:41:20.491 drvModbusAsyn::writeInt32 port Eurotherm_EMODBUS_1_1_Wr_I function=0x6, modbusAddress=010, buffer[0]=0x1c, bufferLen=1 From: Mark Rivers <rivers at cars.uchicago.edu> Hi Marco, Ø
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? No, it cannot be the precision. You are not sending ASCII characters with decimal digits over Modbus, you are sending 16-bit binary integers. So the PREC field should not matter. However the ASLO field controls the conversion from engineering
units to 16-bit integer so it can change the data you are sending. You are getting these errors when you boot: 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' That is because you are running asyn R4-33 and the enhancement to allow symbolic names in the asynSetTrace commands was added in R4-35 in 2019. With this old version of asyn you need to change these commands to: asynSetTraceIOMask Eurotherm_EMODBUS_1_1_Wr_P -1 4 asynSetTraceMask Eurotherm_EMODBUS_1_1_Wr_P -1 9 There is also an error when loading your database: dbLoadRecords("db/dbEurotherm2408.db", "BL=PNR") Error: syntax error at or before "Readback" in file "db/dbEurotherm2408.db" line 423 You should fix that. It could even be the source of your problems, since I don’t know what records are defined after line 423. It appears that the ao record is processing at iocInit, but the record does not have PINI=YES. I don’t understand that. Mark From: Marco A. Barra Montevechi Filho <marco.filho at lnls.br>
Hello, Mark. Thank for the constant help! #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> # 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
2022/04/19 15:54:43.226 PNR:EU2408:P devAsynInt32::processCallbackOutput process error
epics> < /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> 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 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. |
- Replies:
- Re: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Marco A. Barra Montevechi Filho via Tech-talk
- Re: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Marco A. Barra Montevechi Filho via Tech-talk
- References:
- drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Marco A. Barra Montevechi Filho via Tech-talk
- RE: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Mark Rivers via Tech-talk
- Re: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Marco A. Barra Montevechi Filho via Tech-talk
- RE: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Mark Rivers via Tech-talk
- Re: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Marco A. Barra Montevechi Filho via Tech-talk
- Navigate by Date:
- Prev: RE: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Pearson, Matthew via Tech-talk
- Next: AreaDetector ffMpeg invalid writes Daykin, Evan via Tech-talk
- 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
- Navigate by Thread:
- Prev: RE: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Pearson, Matthew via Tech-talk
- Next: Re: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed Marco A. Barra Montevechi Filho via Tech-talk
- 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
·
Home
·
News
·
About
·
Base
·
Modules
·
Extensions
·
Distributions
·
Download
·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·