Experimental Physics and
Industrial Control System
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| <== Date ==> | <== Thread ==> |
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| Subject: | RE: drvModbusAsynConfigure exception 3 when ASLO and PREC fields of PV are changed |
| From: | "Pearson, Matthew via Tech-talk" <tech-talk at aps.anl.gov> |
| To: | "Marco A. Barra Montevechi Filho" <marco.filho at lnls.br>, 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: | Wed, 20 Apr 2022 15:12:46 +0000 |
|
Hi, As an aside, it is possible to get IEEE 32-bit floating point numbers out of the Eurotherm 2000 series. Chapter 6 in the communications manual describes how to access that data. Then you don’t have to deal with implied decimal points and
scaling on the EPICS side. Cheers, Matt From: Tech-talk <tech-talk-bounces at aps.anl.gov>
On Behalf Of Marco A. Barra Montevechi Filho via Tech-talk 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 hxxp://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
hxxp://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")
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- 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
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