ABB ACS310 User manual

Quickstart Guide
ABB PLC and drives integration using Modbus RTU
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Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐2‐ PLCanddrivesintegration
Contents

Introduction...................................................................................................................................................................4
Safetyinstructions .........................................................................................................................................................4
Limitations .....................................................................................................................................................................4
Fieldbusgrounding ....................................................................................................................................................6
Fieldbusshield ...........................................................................................................................................................6
Endtermination.........................................................................................................................................................6
Pullup/pulldownresistors........................................................................................................................................6
Driveswithembeddedfieldbus.................................................................................................................................7
FieldbusmodulesforABBdrives...............................................................................................................................8
Commonrecommendations......................................................................................................................................8
ABBcableTK505........................................................................................................................................................9
AC500COM1–Masteratthebuslineend .........................................................................................................11
AC500COM2–Masteratthebuslineend .........................................................................................................11
AC500‐eCoCOM1–Masteratthebuslineend..................................................................................................11
AC500‐eCoCOM2–Masteratthebuslineend..................................................................................................12
Driveconfiguration......................................................................................................................................................13
StartingupACS310driveswithembeddedModbusRTU .......................................................................................14
StartingupACS355driveswithFMBA‐01ModbusRTUadapter ............................................................................15
StartingupACS800driveswithRMBA‐01ModbusRTUadapter............................................................................17
StartingupACS850,ACQ810driveswithembeddedModbusRTU ........................................................................18
StartingupACS880driveswithFSCA‐01ModbusRTUadapter..............................................................................19
StartingupACSM1driveswithFSCA‐01ModbusRTUadapter ..............................................................................20
Installdriveslibrary .................................................................................................................................................21
ControlBuilderPlusforPLCandDrives.......................................................................................................................22
Hardwareconfiguration ..........................................................................................................................................22
IPconfigurationofCPU(forEthernetconnectionbetweenPCandPLC) ...............................................................24
CODESYS ..................................................................................................................................................................25
CODESYStabs ......................................................................................................................................................25

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐3‐ PLCanddrivesintegration
LibraryManager ..................................................................................................................................................26
PLClogic...............................................................................................................................................................27
DownloadprogramtoPLC...................................................................................................................................32
Createbootproject .............................................................................................................................................33
Testtheprogram .................................................................................................................................................34
ReadandwritemoredatabetweenPLCanddrive(optional)............................................................................36
Visualizations.......................................................................................................................................................43
Addmoredrives(optional)..................................................................................................................................46
Actualizationrate ................................................................................................................................................47
Otherusefuldocumentation.......................................................................................................................................47
Revision .......................................................................................................................................................................47
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Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐4‐ PLCanddrivesintegration
Introduction
ThisguidewilltakeyouthroughthehardwareinstallationandconfigurationofABBACSDrivesandPLCinorderto
prepareforModbusRTUcontrol.ABB‐specificready‐madefunctionblocksandvisualizationsfromthePS553‐
DRIVESlibrarywillbeusedforthecontrolofthedrives.WhiletheguideisapplicabletoallAC500PLCsandall
ModbusRTUcompatibleABBACSdrives,theexampleisbuiltupwithanAC500‐eCoPLCandanACS355drive.
Note!Thematerialinthisapplicationmightneedtobeadaptedaccordingtoactualequipmentandfunction
beforeitisused.Testingoftheequipmentmustalwaysbeperformedbytheresponsiblestart‐uppersonaccording
tocurrentlegislationbeforetheequipmentisplacedinservice.ABBdoesnottakeanyresponsibilityforpossible
damagecausedbyusingthematerialinthisapplication(shownexamples,data,projecttools,etc.).
Safetyinstructions
Followallsafetyinstructionsdeliveredwiththeusedcomponents:
Readthecompletesafetyinstructionsfortheuseddrivebeforeyouinstall,commissionorusethedrive.
Thecompletesafetyinstructionsaregivenatthebeginningofthedrivesuser’smanual(e.g.forACS355:
3AUA0000066143[English]).
ReadallsafetyandinstallationinstructionsoftheusedPLC.SeetheonlinehelpinCoDeSys(Help→
Contents→TargetSystem→AC500/S500→Introduction→Overview→Regulations).
Limitations
Thefollowinglimitationsarevalidforthisguide:
General
oAllinstructionsinthisguidearebasedondefaultsettingsinPLCanddrives
oPS501ControlBuilderPlusversion2.2.0orlater
oThedrivemustbeequippedwithembeddedModbusRTUoraModbusRTUadapter
FunctionblockandvisualizationlibraryPS553‐DRIVEScompatibility
oCommunicationprofile:ABBdrives
oDrivetypes:AllModbusRTUcompatibleABBACSdrives
oApplicationtypes:Speed/FrequencycontrolorTorquecontrol

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐5‐ PLCanddrivesintegration
Setupexample
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ControlBuilderPlus
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

AC500PLC
ABBACSDrives
ETHERNETor
serialconnection
ModbusRTU
ABBModbus
RTUmodules
orembedded

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐6‐ PLCanddrivesintegration
Hardwarephysicalconnection
Inthefollowingchapter,physicalconnectionofthehardwarewillbeexplained.
Fieldbusgrounding
ForAC500,whichhasopto‐isolatedCOMinterfaces,itisrecommendednottoconnecttheground.ForAC500‐
eCo,wheretheCOMinterfacesarenotopto‐isolated,itisrecommendedtoconnectthegroundatoneplace,
typicallyinthebusmaster.Forconnectionexamples,seechapter“Installationexamples”.
Fieldbusshield
TheshieldshouldalwaysbeconnectedinaModbusRTUline.ThepurposeoftheshieldistoprotectagainstEMC
disturbancesandreflectiononthebusline.Forconnectionexamples,seechapter“Installationexamples”.
Endtermination
Purpose:Toavoidsignalreflections.
Resistorsize:120Ohms,¼W.
Wheretoconnect:Oneresistorineachendofthebusline(firstandlastnode).
Pullup/pulldownresistors
Purpose:Tokeepadefinedhighlevelonthebuswhilethereisnodataexchange.
Resistorsize:Dependsonbusmaster(COM)voltagelevel.470ΩforAC500(5Voutput)and270Ωfor
AC500‐eCo(3.3Voutput).
Wheretoconnect:Activatepull‐upandthepull‐downresistors,butonlyonceoneverybusline,atthebus
master.

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐7‐ PLCanddrivesintegration
AC500andAC500eCoCOMportoverview
AC500AC500‐eCoCM574‐RS
COM1COM2COM1COM2
(optional)
COM1=COM2
(seeCOM1of
AC500,exceptpull‐
up/pull‐down)
COMVoltagelevel5V5V3,3V3,3V5V
Opto‐isolated
(electricallyisolated)
YESYESNO
optional*)
NOYES
Maximumbuscable
length
Acc.toRS485
standard
Acc.toRS485
standard
50m
*)Accto
RS485
standard
50mAcc.toRS485
standard
ConnectionTerminal9poleD‐sub9poleD‐sub
*)Terminal
TerminalTerminal
Terminationresistor
built‐in
NONONONONO
Terminationresistor
size
120Ω 120Ω 120Ω 120Ω 120Ω
Pull‐up/pull‐down
resistorsbuilt‐in
YES(connect
withbridges)
NONO
*)yesconnect
withbridges
YES(connect
withbridges)
YES(connectwith
bridges)
Pull‐up/pull‐down
resistorsize
470Ω 470Ω 270Ω 270Ω 475Ω
Pull‐up/pull‐down
resistorsconnection
point
Master(CPU)
COMport
Master(CPU)
COMport
Master(CPU)
COMport
Master
(CPU)COM
port
Master(CPU)COM
port
Pull‐up/pull‐down
connection
Bridges:1to
2and3to4
External470
Ωresistors
External270Ω
resistors
Bridges:1to
2and3to4
Bridges:1to2and3
to4
*)usingTK506RS485isolatorforPM554/PM564withindexA3andhigher
Driveswithembeddedfieldbus
ThefollowingABBdriveshaveModbusRTUembedded:
ACS310
ACS/ACH550
ACS850
Sincethebuilt‐inendterminationofthedriveautomaticallyalsoactivatespull‐up/pull‐downresistors,itis
recommendedtoskipthebuilt‐inoption.
Itisrecommendedtoconnectaseparateendterminationresistortothefirstnode(i.e.thePLCCOMinterface)
andthelastnode(i.e.thelastdriveonthebus).
Forconnectionexamples,seechapter“Installationexamples”.

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐8‐ PLCanddrivesintegration
FieldbusmodulesforABBdrives
ThefollowingABBdrivesModbusRTUmoduleshaveanoptiontoactivatebuilt‐inendterminationandpull‐
up/pull‐downresistors.
RMBA‐01(usedwithforinstanceACS550andACS800)
FSCA‐01(usedwithforinstanceACS880andACSM1)
ThefollowingABBdrivesModbusRTUmoduledoesnothaveanoptiontoactivatebuilt‐inendresistorsincluding
pull‐up/pull‐downresistors.
FMBA‐01(usedwithforinstanceACS355)
Sincethebuilt‐inendterminationofthemodules(RMBA‐01andFSCA‐01)automaticallyalsoactivatespull‐
up/pull‐downresistors,itisrecommendedtoskipthebuilt‐inoption.
Itisrecommendedtoconnectaseparateendterminationresistortothefirstnode(i.e.thePLCCOMinterface)
andthelastnode(i.e.thelastdriveonthebus).
Forconnectionexamples,seechapter“Installationexamples”.

Commonrecommendations
Note!Thefollowingbulletsareonlyrecommendationsandnogeneralrules.
Installationwheretotalcablelengthismorethan50m
oUseCPUAC500ratherthanAC500‐eCoorAC500‐eCowithTK506RS485isolatorforCOM1.
Installationwherethereisariskthatgroundconnectionsindifferentnodescouldvaryinvoltagepotential
(typicallyinshipinstallationsorwithcablelengthsmorethan50m).
oUseCPUAC500anddonotconnectgroundcable,onlyshield→2‐wiresolution,oruseAC500‐eCo
withTK506RS485isolatorforCOM1.
WhenAC500‐eCoisused
oUseof3‐wireconnectionisrecommendedbecausetheCOMinterfaceisnotopto‐isolated,
oruseAC500‐eCowithTK506RS485isolatorforCOM1.
oUseofcablelengthmorethan50mshouldberealizedwithrepeaters,
oruseAC500‐eCowithTK506RS485isolatorforCOM1.
Cabletype
oUseonlycableswithtwistedpairwiresandbraidedshields.Foilshieldsarenotrobustenough,
cannotbecontactedwellandhavepoorHF(HighFrequency)properties.
oGroundthecableshielddirectlywithaclipwhenenteringtheswitch‐gearcabinet.Donotcutthe
shielduntilthecablereachestheconnectedmodule.
oTheconnectionbetweenthePEbarandtheshieldbarmusthavelowimpedance.
oUseABBcableTK505whensuitableforeasyinstallation.

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐9‐ PLCanddrivesintegration

Busline
Construction2cores,twisted,withcommonshield
Conductorcrosssection>0.22mm2(24AWG)
‐recommendation0.5mm2correspondstoØ0.8mm
Twistingrate<10/meter(symmetricallytwisted)
CoreinsulationPolyethylene(PE)
Resistancepercore<100Ω/km
CharacteristicimpedanceAppr.120Ω(100…150Ω)
Capacitancebetweenthecores<55nF/km(ifhigher,thenmaxbuslength
mustbereduced)
Terminatingresistors120Ω,¼Watbothlineends
RemarksCableswithPVCcoreinsulationandacore
diameterof0.8mmcanbeuseduptoa
lengthofappr.250m.Inthiscase,thebus
terminatingresistorisappr.100Ω.

ABBcableTK505
ForaneasyModbusinstallationintheCPUend,thepre‐madeABBcableTK505canbeused.Itincludesa9poleD‐
subcontactwithbuilt‐inendtermination(120Ω)andpull‐up/pull‐downresistors(2*270Ω).Thiscontactis
suitableforAC500‐eCoCOM1.ItcanalsobeusedforAC500COM2(eventhoughanothervoltagelevelisused),
butonlyiftheGNDwireisnotconnectedtotheModbusslaves(2‐wiresolution,preferredforAC500COMports).


Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐10‐ PLCanddrivesintegration
Installationexamples
Bestconnectionofshieldistoconnectdirectlytothemountingplateofthecabinetasnearaspossibletothe
AC500.Themountingplatehastobeconnectedtocommonearthinthecabinetatonepoint.
 or 





Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐11‐ PLCanddrivesintegration
AC500COM1–Masteratthebuslineend



AC500COM2–Masteratthebuslineend



AC500eCoCOM1–Masteratthebuslineend






Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐12‐ PLCanddrivesintegration

AC500eCoCOM2–Masteratthebuslineend






Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐13‐ PLCanddrivesintegration
Driveconfiguration
DriveswithoutembeddedModbusRTUneedtobeequippedwithModbusRTUadapteraccordingtoactualdrive
type.
ThefollowingdriveconfigurationstepswilladaptthedrivetoModbusRTUcontrolbasedonABB‐specificdrives
libraryPS553‐DRIVES.
Driveparameterscanbesetfromthedrive’scontrolpanelorfromdrive‐specificpctool(DriveWindowLightfor
ACS355andACS550,DriveStudioforACS850andACSM1,DriveComposerforACS880andDriveWindowfor
ACS800).
Note!Allparametersettingsarebasedondrivedefaultsettings.Ifthedrivehasbeenparameterizedpreviously,
returntodefaultsettingsbeforecontinuing.Itcanbedoneby:
Changingmacro(andthenchangingbackagain)inparameter99.02forACS310,ACS355andACS550.
Settingparameter99.03APPLICRESTOREtoYESinACS800.
Settingparameter16.04ParamrestoretoRestoredefsinACS850andACSM1.
Settingparameter96.06ParameterrestoretoRestoredefaultsinACS880.


Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐14‐ PLCanddrivesintegration

StartingupACS310driveswithembeddedModbusRTU
Minimumrequiredparametersettings(basedonfactorydefaultsettings)
ParameterDescriptionSettingComment
98.02COMMPROTSELSTD
MODBUS
Activatesfieldbuscommunication
53.02EFBSTATIONID[Address]ModbusRTUnodeaddressofthedrive
53.03EFBBAUDRATE19.2kbit/s
(example)
Transferrateofthelink.Samebaudratemustbe
definedintheModbusRTUmaster.
53.04EFBPARITY8NONE1
(example)
Parityandstopbits.Sameparityandstopbitsmust
bedefinedintheModbusRTUmaster.
53.05PROFILEABBDRV
FULL
Communicationprofile“ABBDrives”
Drivepowerdownandpowerupforthenewfieldbussettingstotakeeffect!
10.01EXT1COMMANDSCOMMFieldbusinterfaceassourceforstartandstop
11.02EXT1/EXT2SELCOMMFieldbusinterfaceassourcetoswitchtoEXT2
11.03REF1SELECTCOMMFieldbusinterfaceassourceforspeedreference
16.04FAULTRESETSELCOMMFieldbusinterfaceassourceforfaultreset

Optionalparametersettings
30.18COMMFAULT
FUNC
[optional]Howthedrivereactstoafieldbuscommunication
break.
30.19COMMFAULTTIME[optional]Timebetweencommunicationbreakdetectionand
theselectedaction.
(11.05)REF1MAX[Scalemax]Maxspeed/frequencyscalingvalue(usedinfunction
block/visualizationinput“SPEED_REF_MAX”).Must
belessorequaltodriveparametermax
speed/frequency.


Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐15‐ PLCanddrivesintegration

StartingupACS355driveswithFMBA01ModbusRTUadapter
Minimumrequiredparametersettings(basedonfactorydefaultsettings)
ParameterDescriptionSettingApplicMacro
”AC500
MODBUS”*)
Comment
98.02COMMPROTSELSTD
MODBUS
STD
MODBUS
Activatesfieldbusmodule
53.02EFBSTATIONID[Address]2ModbusRTUnodeaddressofthedrive
53.03EFBBAUDRATE19.2kbit/s
(example)
19.2kbit/sTransferrateofthelink.Samebaudratemust
bedefinedintheModbusRTUmaster.
53.04EFBPARITY8NONE1
(example)
8NONE1Parityandstopbits.Sameparityandstopbits
mustbedefinedintheModbusRTUmaster.
53.05PROFILEABBDRV
FULL
ABBDRV
FULL
Communicationprofile“ABBDrives”
53.10ActualSpeed101101Actualspeedfeedback
53.11ActualValue2105303Actualvalue2(e.gtorque105)(303=Status
Word1)
Drivepowerdownandpowerupforthenewfieldbussettingstotakeeffect!
10.01EXT1COMMANDSCOMMCOMMFieldbusinterfaceassourceforstartandstop
11.02EXT1/EXT2SELCOMMCOMMFieldbusinterfaceassourcetoswitchtoEXT2
11.03REF1SELECTCOMMCOMMFieldbusinterfaceassourceforspeed
reference
16.04FAULTRESETSELCOMMCOMMFieldbusinterfaceassourceforfaultreset

Optionalparametersettings
30.18COMMFAULT
FUNC
[optional]FAULTHowthedrivereactstoafieldbus
communicationbreak.
30.19COMMFAULTTIME[optional]Default:.3sTimebetweencommunicationbreakdetection
andtheselectedaction.
(11.05)REF1MAX[Scalemax] Maxspeed/frequencyscalingvalue(usedin
functionblock/visualizationinput
“SPEED_REF_MAX”).Mustbelessorequalto
driveparametermaxspeed/frequency.
*)inPar.99.02theApplicationMacrocanbesetto“AC500Modbus(10)”thentheparametersareautomatically
setasshown.

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐16‐ PLCanddrivesintegration
StartingupACS550withembeddedModbusRTU
Minimumrequiredparametersettings(basedonfactorydefaultsettings)
ParameterDescriptionSettingComment
98.02COMMPROTSELEXTFBAActivatesfieldbuscommunication
53.02EFBSTATIONID[Address]ModbusRTUnodeaddressofthedrive
53.03EFBBAUDRATE19.2kbit/s
(example)
Transferrateofthelink.Samebaudratemustbe
definedintheModbusRTUmaster.
53.04EFBPARITY8NONE1
(example)
Parityandstopbits.Sameparityandstopbitsmust
bedefinedintheModbusRTUmaster.
53.05PROFILEABBDRV
FULL
Communicationprofile“ABBDrives”
Drivepowerdownandpowerupforthenewfieldbussettingstotakeeffect!
10.01EXT1COMMANDSCOMMFieldbusinterfaceassourceforstartandstop
11.02EXT1/EXT2SELCOMMFieldbusinterfaceassourcetoswitchtoEXT2
11.03REF1SELECTCOMMFieldbusinterfaceassourceforspeedreference
16.04FAULTRESETSELCOMMFieldbusinterfaceassourceforfaultreset

Optionalparametersettings
30.18COMMFAULT
FUNC
[optional]Howthedrivereactstoafieldbuscommunication
break.
30.19COMMFAULTTIME[optional]Timebetweencommunicationbreakdetectionand
theselectedaction.
(11.05)REF1MAX[Scalemax]Maxspeed/frequencyscalingvalue(usedinfunction
block/visualizationinput“SPEED_REF_MAX”).Must
belessorequaltodriveparametermax
speed/frequency.

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU



ModbusRTU‐17‐ PLCanddrivesintegration
StartingupACS800driveswithRMBA01ModbusRTUadapter
Minimumrequiredparametersettings(basedonfactorydefaultsettings)
ParameterDescriptionSettingComment
98.02COMM.MODULE
LINK
STD
MODBUS
Activatesfieldbusmodule
98.07COMMPROFILEABBDRIVES Communicationprofile“ABBDrives”
52.01STATION
NUMBER
[Address]ModbusRTUnodeaddressofthedrive
52.02BAUDRATE19.2kbit/s
(example)
Transferrateofthelink.Samebaudratemustbe
definedintheModbusRTUmaster.
52.03PARITYNONE1STO
PBIT
(example)
Parityandstopbits.Sameparityandstopbitsmustbe
definedintheModbusRTUmaster.
Drivepowerdownandpowerupforthenewfieldbussettingstotakeeffect!
10.01EXT1
STRT/STP/DIR
COMM.CWFieldbusinterfaceassourceforstartandstop
11.02EXT1/EXT2
SELECT
COMM.CWFieldbusinterfaceassourcetoswitchtoEXT2control
location
11.03EXTREF1SELECTCOMM.REFFieldbusinterfaceassourceforspeedreference
16.04FAULTRESETSELCOMM.CWFieldbusinterfaceassourceforfaultreset
92.02MAINDSACT1102Actualspeedvaluetakenfrom01.02
92.02MAINDSACT2e.g.105Actualvalue2.E.gtorquetakenfrom01.05

Optionalparametersettings
30.18COMMFLTFUNC[optional]Howthedrivereactstoafieldbuscommunication
break.
30.19MAINREFDST‐
OUT
[optional]Timebetweencommunicationbreakdetectionandthe
selectedaction.
(11.05)EXTREF1
MAXIMUM
[Scalemax]Maxspeed/frequencyscalingvalue(usedinfunction
block/visualizationinput“SPEED_REF_MAX”).Mustbe
lessorequaltodriveparametermaxspeed/frequency.

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU



ModbusRTU‐18‐ PLCanddrivesintegration
StartingupACS850,ACQ810driveswithembeddedModbusRTU
Minimumrequiredparametersettings(basedonfactorydefaultsettings)
ParameterDescriptionSettingComment
50.15FbcwusedP.02.36SelectstheaddressofthefieldbusControlWordin
use.
58.01ProtocolenaselModbusRTUInitializesembeddedfieldbuscommunication.
Drive‐to‐drivelinkoperation(parametergroup
57)isautomaticallydisabled.
58.03Nodeaddress[Address]ModbusRTUnodeaddressofthedrive
58.04Baudrate19.2kbit/s
(example)
Transferrateofthelink.Samebaudratemustbe
definedintheModbusRTUmaster.
58.05Parity8none1
(example)
Parityandstopbits.Sameparityandstopbitsmust
bedefinedintheModbusRTUmaster.
58.06ControlprofileABBClassicCommunicationprofile“ABBDrives”
58.10Refreshsettings[optional]Refreshesthesettingsofparameters
58.01…58.09.
10.01Ext1startfuncFBFieldbusinterfaceassourceforstartandstop
12.01EXT1/EXT2SELP.02.36bit
15
FieldbusinterfaceassourcetoswitchtoEXT2
controllocation
21.01Speedref1selEFBref1Fieldbusinterfaceassourceforspeedreference
10.10FaultresetselP.02.36bit8Fieldbusinterfaceassourceforfaultreset

Optionalparametersettings
58.07Commlosstout[optional]DefinesthetimeoutlimitfortheEFB
communicationmonitoring.
58.08CommlossmodeNoneor
AnyMessage
Enables/disablesEFBcommunicationloss
monitoringanddefinesthemeansforresetting
thecounterofthecommunicationlossdelay.
58.09Commlossaction[optional]DefinesthedriveoperationaftertheEFB
communicationlossmonitoringawakes.
58.10Refreshsettings[optional]Refreshesthesettingsofparameters
58.01…58.09.
(19.01)Speedscaling[Scalemax]Maxspeed/frequencyscalingvalue(usedinfunction
block/visualizationinput“SPEED_REF_MAX”).Must
belessorequaltodriveparametermax
speed/frequency.

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU



ModbusRTU‐19‐ PLCanddrivesintegration
StartingupACS880driveswithFSCA01ModbusRTUadapter
Minimumrequiredparametersettings(basedonfactorydefaultsettings)

ParameterDescriptionSettingComment
50.01FBAAenableEnableActivatesfieldbusmodule
51.02PROTOCOL/PROFIL
E
ABBDrives
Classicor
Enhanced
Communicationprofile“ABBDrives”
51.03STATIONID[Address]ModbusRTUnodeaddressofthedrive
51.04BAUDRATE19.2kbit/s
(example)
Transferrateofthelink.Samebaudratemustbe
definedintheModbusRTUmaster.
51.05EFBPARITY8NONE1
(example)
Parityandstopbits.Sameparityandstopbits
mustbedefinedintheModbusRTUmaster.
52.02FBAdatain2Act116bit(5)ActualspeedasDataWord2fromthedrive
53.02FBAdataout2Ref116bit(2)SpeedreferenceasDataWord2tothedrive
51.27FBAparrefreshConfigureUpdatesfieldbussettings(groups50to57)
19.11Ext1/Ext2selectionMcwBit11
(06.01)
FieldbusinterfaceassourcetoswitchtoEXT2
controllocation
20.01Ext1commandsFieldbusAFieldbusinterfaceassourceforstartandstop
20.02Ext1starttrigger LevelTodirectlyrestartafterCoastStop(Off3)
22.11Speedref1
selection
FBAref1Fieldbusinterfaceassourceforspeedreference
31.11Faultreset
selection
P.06.01bit7Fieldbusinterfaceassourceforfaultreset

Optionalparametersettings
50.02FBAAcommloss
func
[optional]Definesthedriveoperationafterthe
communicationlossmonitoringawakes.
51.06MODBUSTIMEOUT[optional]Timebetweencommunicationbreakdetection
andtheselectedaction.1=100ms.
51.07TIMEOUTMODECONTROL
WRITE
Howthedrivereactstoafieldbuscommunication
break.
51.27FBAPARREFRESHREFRESHUpdatesfieldbussettings(groups50to53)
(46.01)Speedscaling[Scalemax]Maxspeed/frequencyscalingvalue(usedin
functionblock/visualizationinput
“SPEED_REF_MAX”).Mustbelessorequaltodrive
parametermaxspeed/frequency.

Quickstart Guide 
ABB PLC and drives integration using Modbus RTU


ModbusRTU‐20‐ PLCanddrivesintegration

StartingupACSM1driveswithFSCA01ModbusRTUadapter

Minimumrequiredparametersettings(basedonfactorydefaultsettings)
ParameterDescriptionSettingComment
50.01FBAENABLEEnableActivatesfieldbusmodule
51.02PROTOCOL/PROFILEABBDrives
Classic
Communicationprofile“ABBDrives”
51.03STATIONID[Address]ModbusRTUnodeaddressofthedrive
51.04BAUDRATE19.2kbit/s
(example)
Transferrateofthelink.Samebaudratemustbe
definedintheModbusRTUmaster.
51.05EFBPARITY8NONE1
(example)
Parityandstopbits.Sameparityandstopbits
mustbedefinedintheModbusRTUmaster.
52.01FBADATAIN14StatuswordasDataWord1fromthedrive
52.02FBADATAIN25ActualspeedasDataWord2fromthedrive
53.01FBADATAOUT11ControlwordasDataWord1tothedrive
53.02FBADATAOUT22SpeedreferenceasDataWord2tothedrive
51.27FBAPARREFRESHREFRESHUpdatesfieldbussettings(groups50to53)
10.01EXT1STARTFUNCFBAFieldbusinterfaceassourceforstartandstop
12.01EXT1/EXT2SELP.02.12bit15FieldbusinterfaceassourcetoswitchtoEXT2
controllocation
24.01SPEEDREF1SELFBAREF1Fieldbusinterfaceassourceforspeedreference
10.08FAULTRESETSELP.02.12bit8Fieldbusinterfaceassourceforfaultreset

Optionalparametersettings
51.06MODBUSTIMEOUT[optional]Timebetweencommunicationbreakdetection
andtheselectedaction.1=100ms.
51.07TIMEOUTMODECONTROL
WRITE
Howthedrivereactstoafieldbuscommunication
break.
50.02COMMLOSSFUNC[optional]Definesthedriveoperationafterthe
communicationlossmonitoringawakes.
51.27FBAPARREFRESHREFRESHUpdatesfieldbussettings(groups50to53)
(25.02)SPEEDSCALING[Scalemax]Maxspeed/frequencyscalingvalue(usedin
functionblock/visualizationinput
“SPEED_REF_MAX”).Mustbelessorequaltodrive
parametermaxspeed/frequency.
